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$104+ Cheap flights from London, ON (YXU) to Washington

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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — SEA
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from London to Washington

Keep the following information in mind while searching for London to Washington flight deals. Data was last updated April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$274
(Air Canada)

One-way from

$104
(WestJet)

Popular in

April

Cheapest in

May

Average price

$1,098
Provider with most accurate pricing for London-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for London-Seattle/Tacoma Intl flights.
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From London to Washington
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One-way flight from London to Washington
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Highest demand for flights based on searches. 31% potential increase in price ($200 potential increase over avg. RT price).
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Cheapest flight prices on average. 19% potential price decrease ($73 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from London to Washington

Cheapest flights from London to Washington
Explore the most affordable flight options available from London to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Air Canada deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/156:15 amYXU - SEA
1 stop7h 30mAir Canada
Thu 5/227:20 amSEA - YXU
2 stops22h 58mAir Canada
Deal found 4/17$274
This WestJet deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/236:00 amYXU - PDX
1 stop10h 05mWestJet
Mon 5/261:45 pmPDX - YXU
1 stop12h 29mWestJet
Deal found 4/16$431
This United Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/156:15 amYXU - SEA
1 stop7h 30mUnited Airlines
Thu 5/2211:30 amSEA - YXU
1 stop6h 58mUnited Airlines
Deal found 4/17$517
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/233:45 pmYXU - PDX
2 stops18h 57mUnited Airlines
Mon 5/268:30 amPDX - YXU
2 stops21h 48mUnited Airlines
Deal found 4/16$555
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/236:00 amYXU - PDX
1 stop10h 05mDelta
Mon 5/265:35 amPDX - YXU
2 stops10h 35mDelta
Deal found 4/16$677

Cheapflights Fare Finder

Customize your flight search to find flights from London to Washington 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 2,558,603 searches. Data last updated April 17, 2025.
Use the filters below to find and compare flights from London to Washington that are best for you.

Fly from

London

Fly to

Washington

Route

Depart

Return

Price

LondonSeattle

YXU - SEA

YXUSEA

London

Thu 5/15

6:15 am-10:45 am

1 stop7h 30m

Seattle/Tacoma Intl

Thu 5/22

7:20 am-9:18 am

2 stops22h 58m

$274

LondonPortland

YXU - PDX

YXUPDX

London

Fri 5/23

6:00 am-1:05 pm

1 stop10h 05m

Portland

Mon 5/26

1:45 pm-5:14 am

1 stop12h 29m

$431

LondonSeattle

YXU - SEA

YXUSEA

London

Thu 5/15

6:15 am-10:45 am

1 stop7h 30m

Seattle/Tacoma Intl

Thu 5/22

11:30 am-9:28 pm

1 stop6h 58m

$517

LondonPortland

YXU - PDX

YXUPDX

London

Fri 5/23

3:45 pm-7:42 am

2 stops18h 57m

Portland

Mon 5/26

8:30 am-9:18 am

2 stops21h 48m

$555

LondonPortland

YXU - PDX

YXUPDX

London

Fri 5/23

6:00 am-1:05 pm

1 stop10h 05m

Portland

Mon 5/26

5:35 am-7:10 pm

2 stops10h 35m

$677

LondonSeattle

YXU - SEA

YXUSEA

London

Mon 6/30

6:00 am-12:58 pm

1 stop9h 58m

$104

LondonSeattle

YXU - SEA

YXUSEA

London

Tue 7/1

6:15 am-11:10 am

1 stop7h 55m

$113

LondonSeattle

YXU - SEA

YXUSEA

London

Mon 6/30

6:15 am-7:14 pm

2 stops15h 59m

$128

LondonSeattle

YXU - SEA

YXUSEA

London

Tue 7/1

6:00 am-2:45 pm

2 stops11h 45m

$281

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Best time to book a flight from London to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from London 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.

Cheapflights Insights

Everything you need to know about your flight from London to Washington

What is the cheapest month to book a flight from London, Ontario to State of Washington?

Currently, January is the cheapest month in which you can book a flight from London, Ontario to State of Washington (average of $238). Flying from London, Ontario to State of Washington in July is currently the most expensive (average of $411). 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.

What is the cheapest time of day to fly from YXU to WA?

Find hourly flight availability from London to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London, Ontario to State of Washington as you normally would.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated April 17, 2025.
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
2,809 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.0
Good
9,142 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from London to Washington. 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 London to Washington?

    For a flight from London to Washington, you will be flying from London. London (YXU) is just 5.3 mi from the center of the city.

  • What are the cheapest airlines to fly from London, Ontario to State of Washington one-way?

    $104 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from $113 and $128, respectively.

  • Can I find deals for flights from London to Washington that include hotel bookings?

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

  • How can I find direct flights from London to Washington?

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

  • Can I find deals for business class flights from London to Washington?

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

  • What is the cheapest month to book a flight from London, Ontario to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from London, Ontario to State of Washington (average of $238). Flying from London, Ontario to State of Washington in July is currently the most expensive (average of $411). 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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