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Washington, D.C.

$308+ 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — WAS
Aug 6 — Aug 131
Thu 8/6
Thu 8/13
1 adult, Economy
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Cheap 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 July 7, 2026.

This Gotogate deal was found by Cheapflights users on 7/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:40 am
YXU
-
DCA
2 stops6h 20m
Air Canada
Fri 8/1412:40 pm
DCA
-
YXU
2 stops9h 00m
Air Canada
Deal found 7/7$526
This Air Canada deal was found by Cheapflights users on 7/6. 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.
Sat 10/313:25 pm
YXU
-
DCA
1 stop4h 33m
Air Canada
Wed 11/49:40 am
DCA
-
YXU
1 stop5h 07m
Air Canada
Deal found 7/6$547
This Air Canada deal was found by Cheapflights users on 7/6. 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.
Fri 7/2410:05 am
YXU
-
IAD
1 stop5h 19m
Air Canada
Sun 7/269:55 am
IAD
-
YXU
1 stop4h 57m
Air Canada
Deal found 7/6$547
This Gotogate deal was found by Cheapflights users on 7/4. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:40 am
YXU
-
DCA
2 stops6h 20m
Air Canada
Tue 8/256:00 am
DCA
-
YXU
2 stops8h 50m
Air Canada
Deal found 7/4$576
This Gotogate deal was found by Cheapflights users on 7/4. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:40 am
YXU
-
IAD
2 stops9h 21m
Air Canada
Tue 8/259:45 am
IAD
-
YXU
2 stops7h 57m
Air Canada
Deal found 7/4$579
This Air Canada deal was found by Cheapflights users on 7/3. 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.
Fri 7/316:20 pm
YXU
-
DCA
1 stop4h 11m
Air Canada
Fri 8/78:40 pm
DCA
-
YXU
1 stop12h 40m
Air Canada
Deal found 7/3$609
This Mytrip deal was found by Cheapflights users on 7/7. 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.
Tue 8/115:55 pm
YXU
-
DCA
3 stops18h 05m
Multiple Airlines
Fri 8/1412:40 pm
DCA
-
YXU
2 stops9h 00m
Multiple Airlines
Deal found 7/7$611
This Air Canada deal was found by Cheapflights users on 7/5. 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.
Wed 8/1910:05 am
YXU
-
IAD
1 stop5h 19m
Air Canada
Wed 8/264:20 pm
IAD
-
YXU
1 stop5h 20m
Air Canada
Deal found 7/5$631
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/318:40 pm
YXU
-
IAD
2 stops26h 12m
Multiple Airlines
Fri 8/77:00 pm
IAD
-
YXU
1 stop10h 20m
Multiple Airlines
Deal found 7/3$643
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Tue 9/110:05 am
YXU
-
BWI
2 stops11h 24m
United Airlines
Sat 9/56:05 am
BWI
-
YXU
2 stops15h 35m
United Airlines
Deal found 7/6$650
This United Airlines deal was found by Cheapflights users on 7/2. 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 10/235:40 am
YXU
-
BWI
2 stops17h 19m
United Airlines
Sat 10/249:09 am
BWI
-
YXU
2 stops12h 31m
United Airlines
Deal found 7/2$658
This United Airlines deal was found by Cheapflights users on 7/2. 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 7/910:05 am
YXU
-
BWI
2 stops7h 31m
United Airlines
Thu 7/166:15 am
BWI
-
YXU
2 stops11h 27m
United Airlines
Deal found 7/2$779

Find 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 July 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$547
(Air Canada)

One-way from

$308
(Air Canada)
Provider with most accurate pricing for London-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for London-Washington, D.C. (WAS) flights.
Search Deals
From London to Washington, D.C. (WAS)
Search Deals
One-way flight from London to Washington, D.C. (WAS)
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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 July 7, 2026.
Use the filters below to find and compare flights from London to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Tue 8/11

6:20 pm-10:31 pm

1 stop4h 11m

Washington, D.C. Reagan-National

Fri 8/14

11:00 am-2:50 pm

1 stop3h 50m

$538

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sat 10/31

5:30 am-12:19 pm

2 stops6h 49m

Washington, D.C. Reagan-National

Wed 11/4

12:55 pm-9:52 pm

2 stops8h 57m

$547

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Fri 7/24

10:05 am-3:24 pm

1 stop5h 19m

Washington, D.C. Dulles Intl

Sun 7/26

9:55 am-2:52 pm

1 stop4h 57m

$547

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Fri 7/31

10:05 am-3:24 pm

1 stop5h 19m

Washington, D.C. Dulles Intl

Fri 8/7

4:20 pm-9:40 pm

1 stop5h 20m

$573

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Tue 8/18

5:40 am-12:00 pm

2 stops6h 20m

Washington, D.C. Reagan-National

Tue 8/25

6:00 am-2:50 pm

2 stops8h 50m

$576

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Tue 8/18

5:40 am-3:01 pm

2 stops9h 21m

Washington, D.C. Dulles Intl

Tue 8/25

9:55 am-2:50 pm

1 stop4h 55m

$589

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Tue 8/11

5:55 pm-12:00 pm

3 stops18h 05m

Washington, D.C. Reagan-National

Fri 8/14

12:40 pm-9:40 pm

2 stops9h 00m

$611

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Wed 8/19

10:05 am-3:24 pm

1 stop5h 19m

Washington, D.C. Dulles Intl

Wed 8/26

4:20 pm-9:40 pm

1 stop5h 20m

$631

LondonBaltimore

YXU - BWI

YXUBWI

London

Tue 9/1

10:05 am-9:29 pm

2 stops11h 24m

Baltimore/Washington

Sat 9/5

6:05 am-9:40 pm

2 stops15h 35m

$650

LondonBaltimore

YXU - BWI

YXUBWI

London

Fri 10/23

5:40 am-10:59 pm

2 stops17h 19m

Baltimore/Washington

Sat 10/24

9:09 am-9:40 pm

2 stops12h 31m

$658

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 30 resultsSorted by cheapest first
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  • Most accurate provider: When it comes to deals on London, Ontario-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London, Ontario-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London, Ontario-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London, Ontario-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London, Ontario-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.
No data available for this route at this time. Please check back soon.

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.

  • How long is the flight from London, Ontario to Washington, D.C.?

    Departing from London, Ontario to Washington, D.C. will take you 4h 27m. London, Ontario and Washington, D.C. are separated by a distance of 359 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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. Dulles Intl or London - Washington, D.C. Reagan-National.

  • 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.

See more FAQs

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Manassas
Falls Church
Fredericksburg
Hanover
Laurel
Silver Spring
Clinton
Hunt Valley
Cordova
Woodbridge

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Alternative routes for London to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Dulles Intl flights
Pearson Intl to Reagan-National flights
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London to Dulles Intl flights

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