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Cheap flights from Seattle (SEA) to Heathrow (LHR) from $241

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 10/6. 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.
SEA — LHR
Jun 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to London Heathrow are usually found in January or February, booked 75 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Seattle to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Heathrow (LHR). 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 June 6, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$643

One-way from

$309
High demand for flights, 29% potential price rise
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Best time to find cheap flights, 20% potential price drop
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From Seattle/Tacoma Intl to London Heathrow
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One-way flight from Seattle/Tacoma Intl to London Heathrow
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What is the cheapest day to fly round-trip from Seattle to London Heathrow Airport?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 13% when planning your travel around this day of the week.

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

To save up to 51% on this flight, we recommend booking at least 8 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Seattle to London Heathrow Airport from $666 1-2 weeks out and tickets from $1,099 for flights departing within the next 72 hours.

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

The best pricing can be found in the month of November. Prices to London Heathrow Airport from Seattle average $859. You can even find prices in November for less than $859, as users have found deals to London Heathrow Airport from as low as $560. The month of June appears to be one of the more expensive times to travel to London Heathrow Airport from Seattle. Flying in the targeted month can save you up to 40%.

What is the cheapest time of day to fly from SEA to LHR?

When flying from Seattle to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 21% versus a flight in the morning.

Cheap Seattle to Heathrow flights in June & July 2024

Find cheap flight options from Seattle to Heathrow specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 6, 2024.
Listed are some of the best fares we've found on flights departing from Seattle to London in 2024. More deals are always being added, so be sure to check back regularly.
Mon 7/2211:00 pmSEA - LHR
1 stop13h 20mIcelandair
Mon 8/199:25 pmLHR - SEA
1 stop21h 55mIcelandair
Deal found 6/5$652
Tue 7/237:40 amSEA - LHR
1 stop18h 20mMultiple Airlines
Wed 9/1810:50 amLHR - SEA
2 stops19h 30mMultiple Airlines
Deal found 6/4$661
Mon 7/296:55 pmSEA - LHR
1 stop33h 00mIcelandair
Mon 8/199:25 pmLHR - SEA
1 stop21h 55mIcelandair
Deal found 6/5$667
Tue 7/2311:00 pmSEA - LHR
1 stop13h 20mIcelandair
Wed 9/189:25 pmLHR - SEA
1 stop28h 30mIcelandair
Deal found 6/4$673
Tue 7/239:15 pmSEA - LHR
Nonstop9h 35mKLM
Wed 9/184:50 pmLHR - SEA
Nonstop10h 30mKLM
Deal found 6/4$675
Tue 7/239:15 pmSEA - LHR
Nonstop9h 35mVirgin Atlantic
Wed 9/187:45 pmLHR - SEA
1 stop30h 05mVirgin Atlantic
Deal found 6/4$679
Mon 7/2212:35 amSEA - LHR
1 stop22h 40mDelta
Wed 9/184:50 pmLHR - SEA
Nonstop10h 30mDelta
Deal found 6/4$680
Mon 7/2212:35 amSEA - LHR
1 stop22h 40mDelta
Wed 9/185:35 pmLHR - SEA
1 stop25h 45mDelta
Deal found 6/4$684
Fri 7/263:50 pmSEA - LHR
1 stop12h 05mIcelandair
Sun 8/259:25 pmLHR - SEA
1 stop21h 55mIcelandair
Deal found 6/5$686

Seattle to Heathrow 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Heathrow in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Listed are some of the best fares we've found on flights departing from Seattle to London in 2024. More deals are always being added, so be sure to check back regularly.
Wed 11/69:55 amSEA - LHR
1 stop16h 15mLufthansa
Tue 11/127:40 amLHR - SEA
1 stop13h 40mLufthansa
Deal found 6/5$555
Tue 10/153:10 pmSEA - LHR
1 stop14h 10mLufthansa
Fri 10/2510:50 amLHR - SEA
1 stop14h 09mLufthansa
Deal found 6/6$556
Sun 10/203:10 pmSEA - LHR
1 stop14h 10mLufthansa
Thu 10/318:15 pmLHR - SEA
1 stop25h 05mLufthansa
Deal found 6/5$561
Sun 12/89:55 amSEA - LHR
1 stop16h 15mLufthansa
Tue 12/177:40 amLHR - SEA
1 stop13h 40mLufthansa
Deal found 6/5$562
Tue 11/262:35 pmSEA - LHR
1 stop20h 45mIcelandair
Sat 12/712:15 pmLHR - SEA
1 stop12h 45mIcelandair
Deal found 6/5$563
Tue 10/83:50 pmSEA - LHR
1 stop12h 05mIcelandair
Tue 10/151:05 pmLHR - SEA
1 stop12h 50mIcelandair
Deal found 6/5$565
Mon 10/143:10 pmSEA - LHR
1 stop14h 10mLufthansa
Wed 10/232:10 pmLHR - SEA
1 stop30h 20mLufthansa
Deal found 6/5$567
Sun 9/296:55 pmSEA - LHR
1 stop33h 00mIcelandair
Sat 10/51:05 pmLHR - SEA
1 stop15h 30mIcelandair
Deal found 6/5$573
Mon 12/23:20 pmSEA - LHR
Nonstop9h 25mVirgin Atlantic
Tue 12/1011:35 amLHR - SEA
Nonstop9h 55mVirgin Atlantic
Deal found 6/6$575

Seattle to Heathrow flights leaving soon

Find last-minute flight options from Seattle to Heathrow 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 3,050,429 searches. Data last updated June 6, 2024.
Have a look at some of the flights available from Seattle to London departing last-minute. It's wise to confirm all flight details are correct before booking.
Tue 6/116:50 pmSEA - LHR
2 stops18h 50mMultiple Airlines
Tue 6/186:40 amLHR - SEA
2 stops18h 19mMultiple Airlines
Deal found 6/6$945
Thu 6/138:09 amSEA - LHR
1 stop19h 56mMultiple Airlines
Fri 6/217:30 pmLHR - SEA
2 stops44h 17mMultiple Airlines
Deal found 6/5$967
Tue 6/1110:40 amSEA - LHR
3 stops27h 00mMultiple Airlines
Tue 6/186:40 amLHR - SEA
2 stops18h 19mMultiple Airlines
Deal found 6/6$991
Thu 6/138:09 amSEA - LHR
1 stop19h 56mMultiple Airlines
Sat 6/226:15 amLHR - SEA
2 stops33h 32mMultiple Airlines
Deal found 6/5$1,113
Tue 6/117:00 amSEA - LHR
2 stops22h 55mMultiple Airlines
Tue 6/187:15 amLHR - SEA
1 stop18h 25mMultiple Airlines
Deal found 6/6$1,120
Tue 6/115:05 pmSEA - LHR
1 stop14h 35mMultiple Airlines
Tue 6/186:30 amLHR - SEA
1 stop16h 25mMultiple Airlines
Deal found 6/6$1,134
Fri 6/148:09 amSEA - LHR
1 stop19h 51mMultiple Airlines
Fri 6/217:30 pmLHR - SEA
2 stops44h 17mMultiple Airlines
Deal found 6/5$1,135
Thu 6/1311:38 pmSEA - LHR
1 stop13h 07mJetBlue
Wed 6/198:25 amLHR - SEA
1 stop18h 55mJetBlue
Deal found 6/5$1,140
Wed 6/127:05 pmSEA - LHR
3 stops33h 00mMultiple Airlines
Sun 6/169:25 pmLHR - SEA
2 stops23h 31mMultiple Airlines
Deal found 6/6$1,141

One-way flights to Heathrow from Seattle

Search for one-way flight options from Seattle to Heathrow. 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 3,050,429 searches. Data last updated June 6, 2024.
Some of the best available deals we've found on one-way flights from Seattle to London. Those seeking round-trip flights from Seattle to London should utilize the search form at the the top of the page.
Sun 10/66:55 pmSEA - LHR
1 stop17h 25mIcelandair
Deal found 6/5$241
Tue 9/246:55 pmSEA - LHR
1 stop17h 25mIcelandair
Deal found 6/5$247
Sun 11/242:35 pmSEA - LHR
1 stop20h 45mIcelandair
Deal found 6/6$251
Sun 9/296:55 pmSEA - LHR
1 stop33h 00mIcelandair
Deal found 6/5$252
Wed 9/256:55 pmSEA - LHR
1 stop33h 00mIcelandair
Deal found 6/5$256
Tue 9/246:55 pmSEA - LHR
1 stop17h 25mIcelandair
Deal found 6/5$257
Wed 9/256:55 pmSEA - LHR
1 stop33h 00mIcelandair
Deal found 6/5$258
Thu 9/196:55 pmSEA - LHR
1 stop33h 00mIcelandair
Deal found 6/5$292
Wed 10/23:50 pmSEA - LHR
1 stop20h 30mIcelandair
Deal found 6/6$293

Find flights from Seattle to Heathrow within your budget

Customize your flight search to find flights from Seattle to Heathrow 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 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$775 - $806

Route

Depart

Return

Price

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sat 8/3

Nonstop9h 20m

London Heathrow

Sat 9/21

Nonstop10h 30m

$775

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sun 9/1

1 stop15h 19m

London Heathrow

Sun 9/15

1 stop16h 37m

$777

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 8/20

2 stops20h 30m

London Heathrow

Mon 8/26

2 stops21h 16m

$779

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Thu 8/22

2 stops34h 00m

London Heathrow

Mon 9/2

1 stop35h 45m

$780

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Wed 8/28

1 stop13h 20m

London Heathrow

Thu 9/12

1 stop15h 25m

$781

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Thu 8/8

1 stop15h 05m

London Heathrow

Sun 9/22

Nonstop9h 45m

$784

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Fri 8/2

1 stop14h 25m

London Heathrow

Thu 9/19

2 stops16h 00m

$803

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sun 8/11

1 stop17h 00m

London Heathrow

Mon 8/26

Nonstop9h 45m

$805

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Thu 8/8

Nonstop9h 20m

London Heathrow

Tue 8/20

1 stop21h 20m

$806

Flights are sorted by cheapest first

Deals found on 6/4

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Heathrow. Price data was last updated on May 31, 2024.
Booking 75 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Heathrow. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to London Heathrow Airport flight should consider departing on Sunday at noon when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Seattle to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Seattle 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 Heathrow by month

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

LON

Temperature

39.2 - 62.6 °F

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated June 6, 2024.
Peruse reviews from past customers who have flown with Delta, British Airways and Icelandair from Seattle to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,368 reviews

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,368 reviews
Delta
8.0
Very good
10,368 reviews

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,489 reviews
Delta
8.0
Very good
10,368 reviews

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

SWISS
7.8
Good
1,930 reviews
Delta
8.0
Very good
10,368 reviews

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

JetBlue
7.6
Good
4,316 reviews
Delta
8.0
Very good
10,368 reviews

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Virgin Atlantic
7.6
Good
718 reviews
Delta
8.0
Very good
10,368 reviews

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Heathrow. 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 from for flights from Seattle to London Heathrow?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to London Heathrow. You should not have trouble finding flights to London Heathrow from Seattle/Tacoma Intl; the airport handles an average of 19 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 16 airlines have flights from the Seattle airport to London Heathrow. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

  • Can I find flights from Seattle to London Heathrow Airport for under $800 on Cheapflights?

    Yes, there are multiple flights from Seattle to London Heathrow Airport for under $800. The cheapest flight booked recently is on Delta for just $775, but on average you can expect to pay $786.

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

    Cheapflights has at least 20 direct flights from Seattle to London Heathrow Airport under $600. A good price for a nonstop flight from Seattle to London Heathrow Airport is less than $655.

  • Are there last-minute flights available from Seattle to London Heathrow Airport for under $1,000?

    There are currently 20+ open flights from Seattle to London Heathrow Airport within the next 7 days for less than $1,000.

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

    Our cheapest airline available from Seattle to London Heathrow Airport is Delta. Our recent data shows that you can find tickets from as low as $775 on this airline. Additional options worth looking into are British Airways and United Airlines, starting at $777 and $780 round-trip. Delta is currently priced 11% below the average price you’ll pay for this route.

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

    No one likes to see their flight delayed. When booking a flight from Seattle to London Heathrow Airport consider choosing American Airlines (70%), Aer Lingus (70%) or Finnair (70%) as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from Seattle to London Heathrow Airport? While on average our users pay $3,014, our data indicates the cheapest price to be $510. The most popular route (Seattle/Tacoma Intl - London Heathrow), is priced around $553.

  • What does SEA to LHR mean?

    SEA stands for Seattle/Tacoma Intl Airport, while LHR stands for London Heathrow Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

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

    The amount of baggage you can bring on your Seattle to Heathrow 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 Seattle to Heathrow with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Heathrow 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 Seattle to Heathrow that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Heathrow 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 Seattle to Heathrow that allow pets onboard?

    Many airlines flying from Seattle to Heathrow 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 Seattle to Heathrow?

    Yes, you can often find last-minute deals on Seattle to Heathrow 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 Seattle to London Heathrow Airport flight deals updated?

    The Seattle to London Heathrow Airport flight deals you see on this page were last updated on 6/6.

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

    Before booking your flight from Seattle to London Heathrow Airport check out the most popular airlines for this route: American Airlines, Air Canada or Air France.

  • What is the cheapest month to book a flight from Seattle to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Seattle to London Heathrow Airport (average of $653). Flying from Seattle to London Heathrow Airport in June is currently the most expensive (average of $1,102). 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.

See more FAQs

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

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Top 10 airlines flying from Seattle to Heathrow

Discover the top 10 airlines that operate flights from Seattle to Heathrow. 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 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$402Average$692FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$519Average$699FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$557Average$842FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$569Average$940FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$575Average$882FlexibilityNo cancel feeOn-time69%
IberiaCheapest$582Average$831FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$588Average$878FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$598Average$954FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$604Average$902FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$616Average$951FlexibilityNo cancel feeOn-time70%
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Search flights from Seattle to Heathrow by cabin class

Find flights from Seattle to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from Seattle to Heathrow

Find hourly flight availability from Seattle to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 6, 2024.
0%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
65%of flight departuresAfternoonNoon to 6 pm
35%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Seattle to Heathrow

Explore weekly flight availability from Seattle to Heathrow. 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 June 6, 2024.
Sunday20daily flights
Monday20daily flights
Tuesday15daily flights
Wednesday20daily flights
Thursday20daily flights
Friday20daily flights
Saturday20daily flights

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