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Washington, D.C.

$305+ Cheap flights from London, ON (YXU) to Washington, D.C. (WAS)

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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — WAS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from London to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to Washington, D.C. (WAS). 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 12, 2025.

Round-trip from

$580
(Air Canada)

One-way from

$305
(Air Canada)
From London to Washington, D.C. (WAS)
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One-way flight from London to Washington, D.C. (WAS)
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Find flight deals from London to Washington, D.C.

Cheapest flights from London to Washington, D.C.
Explore the most affordable flight options available from London to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Sembo deal was found by Cheapflights users on 6/10. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/206:15 amYXU - DCA
2 stops5h 48mAir Canada
Thu 6/266:00 amDCA - YXU
2 stops8h 57mAir Canada
Deal found 6/10$544
This Sembo deal was found by Cheapflights users on 6/10. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/209:55 amYXU - IAD
1 stop3h 47mAir Canada
Thu 6/2610:15 amIAD - YXU
1 stop4h 42mAir Canada
Deal found 6/10$551
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/209:55 amYXU - BWI
2 stops11h 01mMultiple Airlines
Thu 6/2612:25 pmBWI - YXU
2 stops32h 35mMultiple Airlines
Deal found 6/10$582
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 7/269:55 amYXU - IAD
1 stop6h 15mUnited Airlines
Sat 8/26:35 amIAD - YXU
2 stops8h 22mUnited Airlines
Deal found 6/10$622
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Sat 6/283:35 pmYXU - DCA
1 stop4h 07mUnited Airlines
Wed 7/211:00 amDCA - YXU
1 stop4h 02mUnited Airlines
Deal found 6/12$623
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 7/266:15 amYXU - BWI
2 stops7h 33mUnited Airlines
Sat 8/26:15 amBWI - YXU
2 stops10h 52mUnited Airlines
Deal found 6/10$694
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/266:00 amYXU - IAD
3 stops28h 16mMultiple Airlines
Sat 8/29:43 pmIAD - YXU
2 stops31h 31mMultiple Airlines
Deal found 6/10$937
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/306:00 amYXU - IAD
1 stop11h 54mWestJet
Wed 7/26:45 pmIAD - YXU
1 stop10h 29mWestJet
Deal found 6/10$1,125

Cheapflights Fare Finder

Customize your flight search to find flights from London to Washington, D.C. 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 June 12, 2025.
Use the filters below to find and compare flights from London to Washington, D.C. that are best for you.

Fly from

London

Fly to

Washington, D.C.

Route

Depart

Return

Price

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Mon 6/30

6:15 am-12:03 pm

2 stops5h 48m

Washington, D.C. Reagan-National

Wed 7/2

6:00 am-3:02 pm

2 stops9h 02m

$580

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Sat 7/26

9:55 am-1:42 pm

1 stop3h 47m

Washington, D.C. Dulles Intl

Sat 8/2

10:20 am-2:57 pm

1 stop4h 37m

$587

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Sat 7/26

9:55 am-4:10 pm

1 stop6h 15m

Washington, D.C. Dulles Intl

Sat 8/2

6:35 am-2:57 pm

2 stops8h 22m

$622

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sat 6/28

3:35 pm-7:42 pm

1 stop4h 07m

Washington, D.C. Reagan-National

Wed 7/2

11:00 am-3:02 pm

1 stop4h 02m

$623

LondonBaltimore

YXU - BWI

YXUBWI

London

Sat 7/26

6:00 am-5:33 am

3 stops23h 33m

Baltimore/Washington

Sat 8/2

8:00 am-5:14 am

3 stops21h 14m

$631

LondonBaltimore

YXU - BWI

YXUBWI

London

Sat 7/26

6:15 am-1:48 pm

2 stops7h 33m

Baltimore/Washington

Sat 8/2

6:15 am-5:07 pm

2 stops10h 52m

$694

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Sat 7/26

6:00 am-10:16 am

3 stops28h 16m

Washington, D.C. Dulles Intl

Sat 8/2

9:43 pm-5:14 am

2 stops31h 31m

$937

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Mon 6/30

6:00 am-5:54 pm

1 stop11h 54m

Washington, D.C. Dulles Intl

Wed 7/2

6:45 pm-5:14 am

1 stop10h 29m

$1,125

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sat 7/26

5:45 pm-10:27 pm

1 stop4h 42m

$305

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Sat 7/26

9:55 am-1:42 pm

1 stop3h 47m

$305

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 16 results
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Best time to book a flight from London to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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, D.C.

What is the cheapest month to book a flight from London, Ontario to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from London, Ontario to Washington, D.C. (average of $241). Flying from London, Ontario to Washington, D.C. in March is currently the most expensive (average of $290). 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.

Rainfall in Washington, D.C. by month

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

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

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

If weather is an important factor for your trip to Washington, D.C., 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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, D.C.. Reviews last updated June 12, 2025.
Peruse reviews from past customers who have flown with United Airlines, WestJet and Air Canada from London to Washington, D.C. to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,790 reviews

Food

6.6

Boarding

7.7

Entertainment

7.0

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,790 reviews
United Airlines
7.4
Good
8,790 reviews

Food

6.6

Boarding

7.7

Entertainment

7.0

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
WestJet
7.2
Good
2,868 reviews
United Airlines
7.4
Good
8,790 reviews

Food

6.6

Boarding

7.7

Entertainment

7.0

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Air Canada
7.1
Good
9,531 reviews
United Airlines
7.4
Good
8,790 reviews

Food

6.6

Boarding

7.7

Entertainment

7.0

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Related info for your journey

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

    Most people fly from London (YXU) if they book a flight from London to Washington, D.C.. On average, London has 0 outbound flights to Washington, D.C. per day from 0 airlines. London is conveniently located just 5.3 mi from London’s city center.

  • What are the cheapest airlines flying from London, Ontario to Washington, D.C. round-trip?

    Cheapflights users have booked flights from London, Ontario to Washington, D.C. round-trip from $580. Other airlines that can offer you cheap pricing are United Airlines, from $622, and WestJet, from $1,125.

  • What are the cheapest airlines to fly from London, Ontario to Washington, D.C. one-way?

    $305 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and WestJet, with prices starting from $332 and $668, respectively.

  • What are the most popular routes from London, Ontario to Washington, D.C.?

    The most popular route from London, Ontario to Washington, D.C. is London - Baltimore/Washington. You may also consider London - Washington, D.C. Reagan-National or London - Washington, D.C. Dulles Intl.

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

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

  • How can I find direct flights from London to Washington, D.C.?

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

  • Can I find deals for business class flights from London to Washington, D.C.?

    Yes. Cheapflights offers flight deals from London to Washington, D.C. 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 Washington, D.C.?

    Currently, August is the cheapest month in which you can book a flight from London, Ontario to Washington, D.C. (average of $241). Flying from London, Ontario to Washington, D.C. in March is currently the most expensive (average of $290). 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

Traveling to a place near London?

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