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Cheap flights from London, ON to Washington from C$ 554

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/3. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — SEA
26 feb. — 5 mar.1
1 adult

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 21 februar 2025.

Round-trip from

C$ 554

Popular in

April

Cheapest in

September

Average price

C$ 1,291
31/3-13/4
  • 31/3-13/4
  • 3 total stops
  • 35h 20m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 34% potential increase in price (C$ 546 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease (C$ 132 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 21 februar 2025.

man. 31/312:20 p.m.YXU - SEA
2 stops24h 15mMultiple Airlines
søn. 13/49:15 p.m.SEA - YXU
1 stop11h 05mMultiple Airlines
Deal found 21/2C$ 554
søn. 30/38:00 p.m.YXU - SEA
2 stops17h 00mWestJet
man. 14/43:15 p.m.SEA - YXU
1 stop24h 58mWestJet
Deal found 21/2C$ 591
tor. 27/33:20 p.m.YXU - SEA
1 stop9h 15mUnited Airlines
tir. 15/411:59 p.m.SEA - YXU
2 stops11h 49mUnited Airlines
Deal found 21/2C$ 621
søn. 23/35:15 a.m.YXU - SEA
2 stops12h 15mAir Canada
ons. 9/47:05 p.m.SEA - YXU
2 stops11h 08mAir Canada
Deal found 21/2C$ 651

Find flights from London to Washington within your budget

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 629,999 searches. Data last updated 21 februar 2025.

Fly from

London

Fly to

Washington

Route

Depart

Return

Price

LondonSeattle

YXU - SEA

YXUSEA

London

man. 31/3

12:20 p.m.-9:35 a.m.

2 stops24h 15m

Seattle/Tacoma Intl

søn. 13/4

9:15 p.m.-11:20 a.m.

1 stop11h 05m

C$ 554

LondonSeattle

YXU - SEA

YXUSEA

London

søn. 30/3

8:00 p.m.-10:00 a.m.

2 stops17h 00m

Seattle/Tacoma Intl

man. 14/4

3:15 p.m.-7:13 p.m.

1 stop24h 58m

C$ 591

LondonSeattle

YXU - SEA

YXUSEA

London

tor. 27/3

3:20 p.m.-9:35 p.m.

1 stop9h 15m

Seattle/Tacoma Intl

tir. 15/4

11:59 p.m.-2:48 p.m.

2 stops11h 49m

C$ 621

LondonSeattle

YXU - SEA

YXUSEA

London

søn. 23/3

5:15 a.m.-2:30 p.m.

2 stops12h 15m

Seattle/Tacoma Intl

ons. 9/4

7:05 p.m.-9:13 a.m.

2 stops11h 08m

C$ 651

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/2

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.

Travel insights for flights from London to Washington

Get recent, data-driven insights about flights from London to Washington including ideal travel times, pricing trends, and more.

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 C$ 262). Flying from London, Ontario to State of Washington in April is currently the most expensive (average of C$ 382). 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 21 februar 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 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit State of Washington when rainfall is around 18.0 mm.

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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

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 21 februar 2025.
United Airlines
7.4
Good
8,765 reviews
Check prices

Food

6.7

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20

4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!

United Airlines
7.4
Good
8,765 reviews
United Airlines
7.4
Good
8,765 reviews
Check prices

Food

6.7

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20

4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!

WestJet
7.2
Good
2,801 reviews
United Airlines
7.4
Good
8,765 reviews
Check prices

Food

6.7

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20

4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!

Air Canada
7.0
Good
8,756 reviews
United Airlines
7.4
Good
8,765 reviews
Check prices

Food

6.7

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20

4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!

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?

    Most people fly from London (YXU) if they book a flight from London to Washington. London is conveniently located just 8.6 km from London’s city centre.

  • What are the most popular routes from London, Ontario to State of Washington?

    The most popular flight routes from London, Ontario to State of Washington are London - Portland, London - Seattle/Tacoma Intl and London - Wenatchee Pangborn Field.

  • 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 C$ 262). Flying from London, Ontario to State of Washington in April is currently the most expensive (average of C$ 382). 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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See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from London to Washington

Discover the top airline that operate flights from London to Washington. 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 629,999 searches. Data last updated 21 februar 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 371AverageC$ 514FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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How does Cheapflights help users find flights from London to Washington?

Deals for London to Washington flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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Can Cheapflights find flights from London to Washington with no change fees?

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

Can Cheapflights notify me if prices for flights from London to Washington 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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