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$301+ Cheap flights from Reagan-National (DCA) to London, ON (YXU)

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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — YXU
Jun 18 — Jun 251
Thu 6/18
Thu 6/25
1 adult, Economy
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Cheap flight deals from Reagan-National to London

Cheapest flights from Reagan-National to London
Explore the most affordable flight options available from Reagan-National to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 19, 2026.

This Air Canada deal was found by Cheapflights users on 5/18. 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 11/59:40 am
DCA
-
YXU
1 stop5h 26m
Air Canada
Fri 11/63:25 pm
YXU
-
DCA
1 stop4h 32m
Air Canada
Deal found 5/18$657
This Expedia deal was found by Cheapflights users on 5/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:40 am
DCA
-
YXU
1 stop5h 15m
Air Canada
Fri 7/105:10 am
YXU
-
DCA
2 stops6h 50m
Air Canada
Deal found 5/19$671
This Air Canada deal was found by Cheapflights users on 5/18. 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 9/211:00 am
DCA
-
YXU
1 stop3h 55m
Air Canada
Mon 9/73:30 pm
YXU
-
DCA
1 stop4h 27m
Air Canada
Deal found 5/18$672
This Air Canada deal was found by Cheapflights users on 5/18. 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 9/36:00 am
DCA
-
YXU
2 stops8h 55m
Air Canada
Mon 9/75:40 am
YXU
-
DCA
2 stops6h 20m
Air Canada
Deal found 5/18$686
This Air Canada deal was found by Cheapflights users on 5/15. 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 5/296:59 am
DCA
-
YXU
1 stop4h 44m
Air Canada
Tue 6/25:10 am
YXU
-
DCA
1 stop3h 43m
Air Canada
Deal found 5/15$687
This Air Canada deal was found by Cheapflights users on 5/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1512:45 pm
DCA
-
YXU
2 stops8h 53m
Air Canada
Sun 6/215:10 am
YXU
-
DCA
2 stops6h 50m
Air Canada
Deal found 5/16$697

Find flight deals from Reagan-National to London

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to London (YXU). 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 May 19, 2026.

Round-trip from

$657
(Air Canada)

One-way from

$301
(Air Canada)
From Washington, D.C. Reagan-National to London
Search Deals
One-way flight from Washington, D.C. Reagan-National to London
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to London 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 May 19, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Thu 11/5

9:40 am-3:06 pm

1 stop5h 26m

London

Fri 11/6

3:25 pm-7:57 pm

1 stop4h 32m

$657

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Fri 7/3

9:40 am-2:55 pm

1 stop5h 15m

London

Fri 7/10

6:20 pm-10:31 pm

1 stop4h 11m

$671

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Wed 9/2

11:00 am-2:55 pm

1 stop3h 55m

London

Mon 9/7

3:30 pm-7:57 pm

1 stop4h 27m

$672

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Fri 5/29

6:59 am-11:43 am

1 stop4h 44m

London

Tue 6/2

5:10 am-8:53 am

1 stop3h 43m

$687
Quickest round-trip

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Sun 6/28

11:00 am-2:57 pm

1 stop3h 57m

London

Sun 7/5

5:10 am-8:52 am

1 stop3h 42m

$687

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Mon 6/15

12:45 pm-9:38 pm

2 stops8h 53m

London

Sun 6/21

5:10 am-12:00 pm

2 stops6h 50m

$697

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Wed 7/8

11:00 am-2:55 pm

1 stop3h 55m

London

Sun 7/12

6:20 pm-10:31 pm

1 stop4h 11m

$750

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Fri 9/25

11:00 am-2:55 pm

1 stop3h 55m

London

Sun 9/27

6:20 pm-10:34 pm

1 stop4h 14m

$764
Cheapest one-way
Quickest one-way

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Thu 9/24

11:00 am-2:55 pm

1 stop3h 55m

$301

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Mon 6/29

11:00 am-2:57 pm

1 stop3h 57m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/14

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Best time to book a flight from Reagan-National to London

Have a flexible travel schedule? Discover the best time to fly to London from Reagan-National 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.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to London. 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 into for flights to London from Washington, D.C. Reagan-National?

    Located just 5.3 mi from the city center, London is the airport most travelers will use when flying to London from Washington, D.C. Reagan-National. Booking flights from Washington, D.C. Reagan-National to London (YXU) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Reagan-National from 0 different airlines.

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

    Airlines like Air Canada fly from Washington, D.C. Reagan-National Airport to London, Ontario in about 5h 26m. The time it takes to get you to your destination can typically vary by up to . The distance from Washington, D.C. Reagan-National Airport to London, Ontario is about 359 mi.

  • Can I find deals for flights from Reagan-National to London that include hotel bookings?

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

  • How can I find direct flights from Reagan-National to London?

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

  • Can I find deals for business class flights from Reagan-National to London?

    Yes. Cheapflights offers flight deals from Reagan-National to London 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

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