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Cheap flights from Heathrow (LHR) to Seattle (SEA) from $406

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LHR — SEA
jun. 2 — jun. 91
From?
To?
dom. 6/2
dom. 6/9
1 adult, Economy
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The best prices from London Heathrow to Seattle/Tacoma Intl are usually found in November or February, booked 48 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Heathrow to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated mayo 28, 2024.

Popular in

July

Cheapest in

November

Average price

$720

Round-trip from

$247
High demand for flights, 24% potential price rise
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Best time to find cheap flights, 16% potential price drop
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Average for round-trip flights in May 2024
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From London Heathrow to Seattle/Tacoma Intl
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What is the cheapest day to fly round-trip from London Heathrow Airport to Seattle?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Seattle. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from London Heathrow Airport to Seattle?

Find a great deal and save up to 35% by booking at least 44 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London Heathrow Airport to Seattle within the next two weeks, with the cheapest ticket starting at $697.

What is the cheapest month to fly from London Heathrow Airport to Seattle?

November can be a great time to fly to Seattle from London Heathrow Airport with a flight ticket averaging about $696. Cheapflights users have found deals in the month of November for as cheap as $384. The most expensive prices can be found in the month of July.

When is the cheapest time to fly from London Heathrow Airport to Seattle (LHR - SEA)?

One of the essential ways to save on airfare from London Heathrow Airport to Seattle is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 19% on airfare.

Cheap American Airlines flights from Heathrow to Seattle

Explore cheap flight options specifically provided by American Airlines for the route between Heathrow and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated mayo 28, 2024.
Check out some of the cheapest American Airlines flights we've come across from London to Seattle. Deals update often to give you more flight options matching your criteria
mar. 11/128:25 amLHR - SEA
2 stops21h 18mAmerican Airlines
lun. 11/181:43 amSEA - LHR
1 stop20h 37mAmerican Airlines
Deal found 5/28$626
lun. 11/42:50 pmLHR - SEA
Nonstop9h 55mAmerican Airlines
mié. 11/131:50 pmSEA - LHR
1 stop14h 00mAmerican Airlines
Deal found 5/27$630
mar. 11/195:05 pmLHR - SEA
2 stops27h 34mAmerican Airlines
mar. 12/311:59 pmSEA - LHR
1 stop23h 21mAmerican Airlines
Deal found 5/27$634
mar. 11/58:40 amLHR - SEA
1 stop16h 41mAmerican Airlines
mié. 11/131:50 pmSEA - LHR
1 stop14h 00mAmerican Airlines
Deal found 5/27$636
dom. 11/32:50 pmLHR - SEA
Nonstop9h 55mAmerican Airlines
mié. 11/131:50 pmSEA - LHR
1 stop14h 00mAmerican Airlines
Deal found 5/27$639
lun. 6/39:45 amLHR - SEA
1 stop20h 05mAmerican Airlines
lun. 6/105:10 amSEA - LHR
2 stops17h 05mAmerican Airlines
Deal found 5/27$770
mié. 6/54:00 pmLHR - SEA
Nonstop9h 45mAmerican Airlines
mar. 6/1810:18 amSEA - LHR
1 stop16h 32mAmerican Airlines
Deal found 5/28$818
mar. 6/48:10 amLHR - SEA
2 stops16h 41mAmerican Airlines
dom. 6/2311:59 pmSEA - LHR
1 stop23h 41mAmerican Airlines
Deal found 5/27$821
mar. 6/410:30 amLHR - SEA
2 stops17h 59mAmerican Airlines
lun. 6/171:14 amSEA - LHR
1 stop25h 36mAmerican Airlines
Deal found 5/28$823

  • If you’re traveling from London Heathrow Airport to Seattle, one of the more common airlines traveling that route is American Airlines. Flights from American Airlines traveling this route typically cost $781.71 RT. This price is typically 80% more expensive than other airlines that offer London Heathrow Airport to Seattle flights. When booking this route, the cheapest RT price found was $575. The most popular departure airport in London Heathrow Airport when flying to Seattle is London Heathrow Airport. The most popular airport to fly into when visiting Seattle is Seattle/Tacoma Intl Airport. When flying from London Heathrow Airport to Seattle, American Airlines flights are 10% more popular than any other airline flying that same route.

Cheap Icelandair flights from Heathrow to Seattle

Explore cheap flight options specifically provided by Icelandair for the route between Heathrow and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated mayo 28, 2024.
To aid your search, here are some of the cheapest Icelandair flights we've found from London to Seattle. Ensure the flight price, dates, time, and airline match your criteria before you book.
vie. 11/158:25 pmLHR - SEA
1 stop28h 35mIcelandair
sáb. 11/302:35 pmSEA - LHR
1 stop12h 20mIcelandair
Deal found 5/27$523
mar. 10/159:25 pmLHR - SEA
1 stop28h 30mIcelandair
lun. 10/283:35 pmSEA - LHR
1 stop12h 20mIcelandair
Deal found 5/27$524
mié. 11/68:25 pmLHR - SEA
1 stop28h 35mIcelandair
mar. 11/122:35 pmSEA - LHR
1 stop12h 20mIcelandair
Deal found 5/27$527
mar. 9/39:25 pmLHR - SEA
1 stop21h 55mIcelandair
mar. 9/176:55 pmSEA - LHR
1 stop33h 00mIcelandair
Deal found 5/26$532
jue. 9/121:10 pmLHR - SEA
1 stop15h 25mIcelandair
dom. 9/226:55 pmSEA - LHR
1 stop33h 00mIcelandair
Deal found 5/27$546
mar. 9/31:05 pmLHR - SEA
1 stop12h 35mIcelandair
sáb. 9/146:55 pmSEA - LHR
1 stop17h 25mIcelandair
Deal found 5/27$552
mar. 11/198:25 pmLHR - SEA
1 stop28h 35mIcelandair
mar. 12/32:35 pmSEA - LHR
1 stop12h 20mIcelandair
Deal found 5/27$555
jue. 10/179:25 pmLHR - SEA
1 stop28h 30mIcelandair
jue. 10/243:50 pmSEA - LHR
1 stop12h 05mIcelandair
Deal found 5/27$559
lun. 11/412:15 pmLHR - SEA
1 stop12h 45mIcelandair
mar. 11/122:35 pmSEA - LHR
1 stop12h 20mIcelandair
Deal found 5/27$562

  • One of the most popular airlines traveling from London Heathrow Airport to Seattle is Icelandair. London Heathrow Airport to Seattle flights are typically 70% cheaper than other airlines traveling the same route. Flights from Icelandair typically cost $751.06 RT. The cheapest Icelandair flight found for this route was $611. The most popular departure airport in London Heathrow Airport when flying to Seattle is London Heathrow Airport. The most popular airport to fly into when visiting Seattle is Seattle/Tacoma Intl Airport. When flying from London Heathrow Airport to Seattle, Icelandair flights are 5% more popular than any other airline flying that same route.

Cheap Heathrow to Seattle flights in May & June 2024

Find cheap flight options from Heathrow to Seattle specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,740,132 searches. Prices were last updated on mayo 28, 2024.
Scroll through some of the best deals on flights from London to Seattle in 2024. Check back regularly for other flight deals.
lun. 6/39:25 pmLHR - SEA
1 stop21h 55mIcelandair
lun. 6/1711:00 pmSEA - LHR
1 stop13h 20mIcelandair
Deal found 5/27$672
sáb. 6/159:25 pmLHR - SEA
1 stop21h 55mIcelandair
lun. 6/2411:00 pmSEA - LHR
1 stop28h 55mIcelandair
Deal found 5/27$673
sáb. 6/159:25 pmLHR - SEA
1 stop21h 55mIcelandair
lun. 6/2411:00 pmSEA - LHR
1 stop28h 55mIcelandair
Deal found 5/28$674
lun. 6/109:25 pmLHR - SEA
1 stop21h 55mIcelandair
mar. 6/2511:00 pmSEA - LHR
1 stop13h 20mIcelandair
Deal found 5/27$678
sáb. 6/159:25 pmLHR - SEA
1 stop21h 55mIcelandair
dom. 6/3011:00 pmSEA - LHR
1 stop28h 55mIcelandair
Deal found 5/28$680
mar. 6/119:25 pmLHR - SEA
1 stop21h 55mIcelandair
lun. 6/2411:00 pmSEA - LHR
1 stop28h 55mIcelandair
Deal found 5/27$681
mar. 6/189:25 pmLHR - SEA
1 stop21h 55mIcelandair
mar. 9/106:55 pmSEA - LHR
1 stop17h 25mIcelandair
Deal found 5/27$684
mar. 6/189:25 pmLHR - SEA
1 stop21h 55mIcelandair
mar. 9/106:55 pmSEA - LHR
1 stop17h 25mIcelandair
Deal found 5/28$685
mar. 6/49:25 pmLHR - SEA
1 stop21h 55mIcelandair
lun. 6/2411:00 pmSEA - LHR
1 stop28h 55mIcelandair
Deal found 5/28$690

Heathrow to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Heathrow and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated mayo 28, 2024.
Scroll through some of the best deals on flights from London to Seattle in 2024. Check back regularly for other flight deals.
vie. 9/69:25 pmLHR - SEA
1 stop21h 55mIcelandair
jue. 9/196:55 pmSEA - LHR
1 stop33h 00mIcelandair
Deal found 5/28$668
mar. 9/179:30 amLHR - SEA
2 stops16h 56mMultiple Airlines
vie. 9/277:40 amSEA - LHR
1 stop14h 50mMultiple Airlines
Deal found 5/27$670
mar. 9/179:50 amLHR - SEA
Nonstop9h 45mFinnair
sáb. 9/285:00 amSEA - LHR
1 stop18h 30mFinnair
Deal found 5/28$671
lun. 6/39:25 pmLHR - SEA
1 stop21h 55mIcelandair
lun. 6/1711:00 pmSEA - LHR
1 stop13h 20mIcelandair
Deal found 5/27$672
dom. 9/294:00 pmLHR - SEA
Nonstop9h 45mBritish Airways
mié. 10/99:56 amSEA - LHR
1 stop14h 04mBritish Airways
Deal found 5/28$673
sáb. 6/159:25 pmLHR - SEA
1 stop21h 55mIcelandair
lun. 6/2411:00 pmSEA - LHR
1 stop28h 55mIcelandair
Deal found 5/28$674
mar. 10/156:15 amLHR - SEA
2 stops22h 58mIberia
lun. 10/286:00 amSEA - LHR
1 stop19h 15mIberia
Deal found 5/27$675
jue. 11/79:30 amLHR - SEA
2 stops19h 38mMultiple Airlines
mié. 11/135:50 amSEA - LHR
2 stops17h 20mMultiple Airlines
Deal found 5/27$676
lun. 6/109:25 pmLHR - SEA
1 stop21h 55mIcelandair
mar. 6/2511:00 pmSEA - LHR
1 stop13h 20mIcelandair
Deal found 5/27$678

Non-stop flights to Seattle from Heathrow

Discover non-stop flight options from Heathrow to Seattle. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated mayo 28, 2024.
Consider booking one of these non-stop flights heading from London to Seattle. Those looking to potentially save on 1 or 2-stop flights from London to Seattle should utilize the search form at the the top of the page.
mar. 10/154:50 pmLHR - SEA
Nonstop10h 25mVirgin Atlantic
lun. 10/287:05 pmSEA - LHR
Nonstop9h 35mVirgin Atlantic
Deal found 5/27$583
mar. 11/511:35 amLHR - SEA
Nonstop9h 55mVirgin Atlantic
mar. 11/123:20 pmSEA - LHR
Nonstop9h 25mVirgin Atlantic
Deal found 5/27$600
lun. 9/164:50 pmLHR - SEA
Nonstop10h 30mVirgin Atlantic
mar. 10/154:30 pmSEA - LHR
Nonstop9h 20mVirgin Atlantic
Deal found 5/27$608
mar. 10/224:00 pmLHR - SEA
Nonstop9h 45mFinnair
sáb. 11/27:45 pmSEA - LHR
Nonstop9h 20mFinnair
Deal found 5/27$616
mié. 10/24:50 pmLHR - SEA
Nonstop10h 25mVirgin Atlantic
sáb. 2/13:20 pmSEA - LHR
Nonstop9h 25mVirgin Atlantic
Deal found 5/27$617
mar. 10/2911:35 amLHR - SEA
Nonstop9h 55mVirgin Atlantic
lun. 11/43:20 pmSEA - LHR
Nonstop9h 25mVirgin Atlantic
Deal found 5/27$622
mar. 10/229:50 amLHR - SEA
Nonstop9h 45mFinnair
sáb. 11/22:45 pmSEA - LHR
Nonstop9h 25mFinnair
Deal found 5/28$623
vie. 11/152:50 pmLHR - SEA
Nonstop9h 55mFinnair
sáb. 11/301:45 pmSEA - LHR
Nonstop9h 25mFinnair
Deal found 5/27$624
mar. 11/194:35 pmLHR - SEA
Nonstop10h 25mKLM
mar. 12/36:05 pmSEA - LHR
Nonstop9h 35mKLM
Deal found 5/27$631

Heathrow to Seattle flights leaving soon

Find last-minute flight options from Heathrow to Seattle for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated mayo 28, 2024.
Book one of these great deals on flights from London to Seattle. Users should examine the flight details to ensure there are no surprises.
lun. 6/39:25 pmLHR - SEA
1 stop21h 55mIcelandair
lun. 6/1711:00 pmSEA - LHR
1 stop13h 20mIcelandair
Deal found 5/27$672
mar. 6/49:25 pmLHR - SEA
1 stop21h 55mIcelandair
lun. 6/2411:00 pmSEA - LHR
1 stop28h 55mIcelandair
Deal found 5/28$690
lun. 6/39:25 pmLHR - SEA
1 stop31h 10mIcelandair
lun. 6/1711:00 pmSEA - LHR
1 stop13h 20mIcelandair
Deal found 5/28$691
mié. 6/59:25 pmLHR - SEA
1 stop21h 55mIcelandair
dom. 6/1611:00 pmSEA - LHR
1 stop13h 20mIcelandair
Deal found 5/28$705
dom. 6/29:25 pmLHR - SEA
1 stop21h 55mIcelandair
dom. 6/911:00 pmSEA - LHR
1 stop28h 55mIcelandair
Deal found 5/26$706
mar. 6/41:05 pmLHR - SEA
1 stop12h 35mIcelandair
dom. 6/1611:00 pmSEA - LHR
1 stop28h 55mIcelandair
Deal found 5/28$709
mar. 6/49:25 pmLHR - SEA
1 stop21h 55mIcelandair
dom. 6/1611:00 pmSEA - LHR
1 stop13h 20mIcelandair
Deal found 5/27$721
mar. 6/49:25 pmLHR - SEA
1 stop21h 55mIcelandair
dom. 6/2311:00 pmSEA - LHR
1 stop28h 55mIcelandair
Deal found 5/28$723
dom. 6/29:25 pmLHR - SEA
1 stop21h 55mIcelandair
lun. 6/1711:00 pmSEA - LHR
1 stop13h 20mIcelandair
Deal found 5/27$724

One-way flights to Seattle from Heathrow

Search for one-way flight options from Heathrow to Seattle. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated mayo 28, 2024.
Some of the best available deals we've found on one-way flights from London to Seattle. Those seeking round-trip flights from London to Seattle should utilize the search form at the the top of the page.
dom. 6/167:25 amLHR - SEA
2 stops37h 31mMultiple Airlines
Deal found 5/28$406
dom. 6/167:25 amLHR - SEA
2 stops37h 31mMultiple Airlines
Deal found 5/27$407
dom. 6/167:25 amLHR - SEA
2 stops37h 31mMultiple Airlines
Deal found 5/27$411
dom. 6/167:25 amLHR - SEA
2 stops44h 56mMultiple Airlines
Deal found 5/28$414
mar. 6/111:10 pmLHR - SEA
3 stops51h 22mMultiple Airlines
Deal found 5/27$425
mar. 6/118:15 pmLHR - SEA
2 stops29h 25mMultiple Airlines
Deal found 5/27$427
mar. 6/118:15 pmLHR - SEA
2 stops29h 25mMultiple Airlines
Deal found 5/27$428
mar. 6/48:15 pmLHR - SEA
2 stops32h 20mMultiple Airlines
Deal found 5/28$429
mié. 6/128:15 pmLHR - SEA
2 stops47h 05mMultiple Airlines
Deal found 5/27$439

Find flights from Heathrow to Seattle within your budget

Customize your flight search to find flights from Heathrow to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated mayo 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$523 - $651

Route

Depart

Return

Price

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

vie. 11/15

1 stop28h 35m

Seattle/Tacoma Intl

sáb. 11/30

1 stop12h 20m

$523

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

mar. 10/29

Nonstop10h 00m

Seattle/Tacoma Intl

lun. 11/4

2 stops18h 20m

$573

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

mar. 10/15

Nonstop10h 25m

Seattle/Tacoma Intl

lun. 10/28

Nonstop9h 35m

$583

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

mié. 9/25

2 stops16h 00m

Seattle/Tacoma Intl

mié. 10/2

2 stops17h 10m

$594

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

mar. 10/15

Nonstop9h 45m

Seattle/Tacoma Intl

lun. 10/28

1 stop13h 50m

$606

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

mar. 10/22

Nonstop9h 45m

Seattle/Tacoma Intl

sáb. 11/2

Nonstop9h 20m

$616

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

mar. 11/12

2 stops21h 18m

Seattle/Tacoma Intl

lun. 11/18

1 stop20h 37m

$626

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

mar. 11/19

Nonstop10h 25m

Seattle/Tacoma Intl

mar. 12/3

Nonstop9h 35m

$631

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

lun. 11/4

1 stop15h 49m

Seattle/Tacoma Intl

mié. 11/13

2 stops17h 20m

$651

Flights are sorted by cheapest first

Deals found on 5/27

When is the best time to book a flight from London Heathrow Airport to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Seattle. Price data was last updated on May 24, 2024.
The best time to book flights from London Heathrow Airport to Seattle is 48 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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When is the cheapest time to fly from London Heathrow Airport to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Heathrow to Seattle. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their London Heathrow Airport to Seattle flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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Best time to book a flight from Heathrow to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Heathrow with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

SEA

Temperature

41 - 66.2 °F

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated mayo 28, 2024.
Read through reviews of airlines operating flights from London to Seattle, such as American Airlines, Icelandair and KLM. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,476 reviews
Check prices

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,476 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

KLM
7.9
Good
1,528 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

SWISS
7.8
Good
1,952 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Finnair
7.8
Good
1,371 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Virgin Atlantic
7.6
Good
721 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from London Heathrow?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from London Heathrow. Booking flights from London Heathrow to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 21 daily inbound flights from London Heathrow from 9 different airlines.

  • Can I find flights from London Heathrow Airport to Seattle for under $600 on Cheapflights?

    Yes, there are multiple flights from London Heathrow Airport to Seattle for under $600. The cheapest flight booked recently is on Icelandair for just $523, but on average you can expect to pay $566.

  • Are there nonstop flights from London Heathrow Airport to Seattle for under $600 on Cheapflights?

    Cheapflights has at least 20 direct flights from London Heathrow Airport to Seattle under $600. A good price for a nonstop flight from London Heathrow Airport to Seattle is less than $647.

  • Are there last-minute flights available from London Heathrow Airport to Seattle for under $700?

    There are currently 20+ open flights from London Heathrow Airport to Seattle within the next 7 days for less than $700.

  • What are the cheapest airlines flying from London Heathrow Airport to Seattle round-trip?

    Currently priced at $523, Icelandair will fly you from London Heathrow Airport to Seattle and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Royal Air Maroc and Virgin Atlantic - these airlines can fly you to your destination from $573 and $583, respectively. Users have found that Icelandair is 26% cheaper than the other options available to this destination.

  • What are the most reliable airlines from London Heathrow Airport to Seattle?

    The top 3 most reliable airlines when flying from London Heathrow Airport to Seattle are KLM (75%), American Airlines (73%) and Aer Lingus (73%).

  • What are the cheapest flights from London Heathrow Airport to Seattle?

    The cheapest flight price from London Heathrow Airport to Seattle is $665. On average you can expect to pay $3,358. The most popular route, (London Heathrow - Seattle/Tacoma Intl), can usually be booked for $523.

  • What does LHR to SEA mean?

    LHR and SEA are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. LHR to SEA refers to a flight route from London Heathrow Airport to Seattle/Tacoma Intl Airport.

  • Can I find deals for flights from Heathrow to Seattle that include extra baggage allowance?

    The amount of baggage you can bring on your Heathrow to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Heathrow to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Heathrow to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Heathrow to Seattle that include hotel bookings?

    Yes. In addition to deals on Heathrow to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Seattle.

  • Can I find deals for business class flights from Heathrow to Seattle?

    Yes. Cheapflights offers flight deals from Heathrow to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Heathrow to Seattle that allow pets onboard?

    Many airlines flying from Heathrow to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Heathrow to Seattle?

    Yes, you can often find last-minute deals on Heathrow to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the London Heathrow Airport to Seattle flight deals updated?

    The London Heathrow Airport to Seattle flight deals you see on this page were last updated on 5/28.

  • What are the most popular airlines that fly from London Heathrow Airport to Seattle?

    American Airlines, Finnair and British Airways are the most popular airlines when flying from London Heathrow Airport to Seattle.

  • When is the best time to book a flight from London Heathrow Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Seattle (average of $247). Flying from London Heathrow Airport to Seattle in July is currently the most expensive (average of $406). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Heathrow to Seattle
See prices for flight routes from nearby airports that may be better suited for you.

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Top 9 airlines flying from Heathrow to Seattle

Discover the top 9 airlines that operate flights from Heathrow to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated mayo 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$505Average$795FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
American AirlinesCheapest$531Average$734FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
British AirwaysCheapest$532Average$810FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest$537Average$770FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
DeltaCheapest$575Average$782FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$585Average$654FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest$611Average$751FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest$618Average$758FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Aer LingusCheapest$670Average$831FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
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Search flights from Heathrow to Seattle by cabin class

Find flights from Heathrow to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Heathrow to Seattle

Find hourly flight availability from Heathrow to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mayo 28, 2024.
1%of flight departuresEarly morningMidnight to 6 am
58%of flight departuresMorning6 am to noon
41%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Heathrow to Seattle

Explore weekly flight availability from Heathrow to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated mayo 28, 2024.
Sunday20daily flights
Monday20daily flights
Tuesday24daily flights
Wednesday20daily flights
Thursday20daily flights
Friday20daily flights
Saturday25daily flights

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How does Cheapflights help users find flights from Heathrow to Seattle?

Cheapflights helps you search for flights from Heathrow to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Seattle?

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Heathrow to Seattle with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Seattle, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Heathrow to Seattle become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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