HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$594+ Cheap flights from District of Columbia to London, ON (YXU)

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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YXU
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from District of Columbia to London with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from District of Columbia to London

Keep the following information in mind while searching for District of Columbia to London flight deals. Data was last updated October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$518
(Gotogate)
Provider with most accurate pricing for Washington, D.C. (WAS)-London flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-London flights.
Search Deals
From District of Columbia to London
Search Deals

Find flight deals from District of Columbia to London

Cheapest flights from District of Columbia to London
Explore the most affordable flight options available from District of Columbia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Air Canada deal was found by Cheapflights users on 10/26. 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 12/114:30 pmIAD - YXU
1 stop4h 51mAir Canada
Thu 12/189:25 amYXU - IAD
1 stop6h 21mAir Canada
Deal found 10/26$594
This Air Canada deal was found by Cheapflights users on 10/27. 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 12/126:00 amDCA - YXU
2 stops11h 05mAir Canada
Fri 12/195:40 pmYXU - DCA
1 stop4h 55mAir Canada
Deal found 10/27$599
This Air Canada deal was found by Cheapflights users on 10/26. 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 12/116:59 amDCA - YXU
1 stop10h 06mAir Canada
Thu 12/185:10 amYXU - DCA
1 stop3h 45mAir Canada
Deal found 10/26$617
This Air Canada deal was found by Cheapflights users on 10/28. 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 12/124:30 pmIAD - YXU
1 stop4h 51mAir Canada
Fri 12/199:25 amYXU - IAD
1 stop11h 01mAir Canada
Deal found 10/28$617
This United Airlines deal was found by Cheapflights users on 10/26. 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 12/117:30 amDCA - YXU
2 stops9h 35mUnited Airlines
Thu 12/185:10 amYXU - DCA
1 stop3h 45mUnited Airlines
Deal found 10/26$689
This United Airlines deal was found by Cheapflights users on 10/26. 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 12/118:45 amIAD - YXU
2 stops8h 20mUnited Airlines
Thu 12/189:25 amYXU - IAD
1 stop6h 21mUnited Airlines
Deal found 10/26$689
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/126:50 pmDCA - YXU
1 stop13h 56mUnited Airlines
Fri 12/199:25 amYXU - DCA
2 stops7h 34mUnited Airlines
Deal found 10/28$718
This United Airlines deal was found by Cheapflights users on 10/29. 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 12/134:30 pmIAD - YXU
1 stop4h 51mUnited Airlines
Sat 12/209:25 amYXU - IAD
2 stops14h 50mUnited Airlines
Deal found 10/29$718
This Air Canada deal was found by Cheapflights users on 10/29. 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 12/134:30 pmIAD - YXU
1 stop4h 51mAir Canada
Sat 12/209:25 amYXU - IAD
1 stop11h 01mAir Canada
Deal found 10/29$733
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/124:30 pmIAD - YXU
1 stop4h 51mUnited Airlines
Fri 12/199:25 amYXU - IAD
2 stops14h 50mUnited Airlines
Deal found 10/28$751
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Wed 12/2410:33 pmIAD - YXU
2 stops18h 32mUnited Airlines
Wed 12/319:25 amYXU - IAD
1 stop6h 21mUnited Airlines
Deal found 10/26$762
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/77:09 amDCA - YXU
2 stops9h 56mUnited Airlines
Mon 11/105:40 pmYXU - DCA
1 stop4h 55mUnited Airlines
Deal found 10/28$1,042

Cheapflights Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 October 29, 2025.
Use the filters below to find and compare flights from District of Columbia to London that are best for you.

Fly from

District of Columbia

Fly to

London

Route

Depart

Return

Price

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Thu 12/11

4:30 pm-9:21 pm

1 stop4h 51m

London

Thu 12/18

9:25 am-3:46 pm

1 stop6h 21m

$594

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Fri 12/12

6:00 am-5:05 pm

2 stops11h 05m

London

Fri 12/19

5:40 pm-10:35 pm

1 stop4h 55m

$599

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Thu 12/11

6:59 am-5:05 pm

1 stop10h 06m

London

Thu 12/18

5:10 am-8:55 am

1 stop3h 45m

$617

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Wed 1/14

8:40 pm-8:46 am

1 stop12h 06m

London

Tue 1/20

5:40 pm-10:35 pm

1 stop4h 55m

$617

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Wed 1/14

4:30 pm-9:21 pm

1 stop4h 51m

London

Tue 1/20

5:15 am-3:54 pm

1 stop10h 39m

$617

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Mon 3/30

4:30 pm-9:18 pm

1 stop4h 48m

London

Fri 4/3

9:25 am-8:30 pm

1 stop11h 05m

$617

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Fri 12/12

4:30 pm-9:21 pm

1 stop4h 51m

London

Fri 12/19

9:25 am-8:26 pm

1 stop11h 01m

$617

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Wed 1/14

9:07 am-5:05 pm

2 stops7h 58m

London

Tue 1/20

5:15 am-8:55 am

1 stop3h 40m

$689

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Thu 12/11

7:30 am-5:05 pm

2 stops9h 35m

London

Thu 12/18

5:10 am-8:55 am

1 stop3h 45m

$689

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Thu 12/11

8:45 am-5:05 pm

2 stops8h 20m

London

Thu 12/18

9:25 am-3:46 pm

1 stop6h 21m

$689

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 15 results
1
2

Best time to book a flight from District of Columbia to London

Have a flexible travel schedule? Discover the best time to fly to London from District of Columbia 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 District of Columbia to London

What is the cheapest month to book a flight from District of Columbia to London, Ontario?

Currently, March is the cheapest month in which you can book a flight from District of Columbia to London, Ontario (average of $98). Flying from District of Columbia to London, Ontario in October is currently the most expensive (average of $205). 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.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia 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 District of Columbia?

    London (YXU) is the airport you will fly into if you book a flight from District of Columbia to London. It is only a 5.3 mi journey from London (YXU) to London’s city center.

  • How long is the flight from District of Columbia to London, Ontario?

    For as low as $594, Air Canada can have you in London, Ontario from District of Columbia in 4h 51m. District of Columbia and London, Ontario are separated by a distance of 341 mi.

  • Can I find deals for flights from District of Columbia to London that include hotel bookings?

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

  • How can I find direct flights from District of Columbia to London?

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

  • Can I find deals for business class flights from District of Columbia to London?

    Yes. Cheapflights offers flight deals from District of Columbia 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.

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

    Currently, March is the cheapest month in which you can book a flight from District of Columbia to London, Ontario (average of $98). Flying from District of Columbia to London, Ontario in October is currently the most expensive (average of $205). 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?

Book flights to London if you plan to visit one of these locations
Grand Bend

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for District of Columbia to London

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Pearson Intl flights
Newark to Pearson Intl flights
Newark to Toronto Island flights
LaGuardia to Pearson Intl flights
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
Newark to Pierre Elliott Trudeau Intl flights
LaGuardia to Pierre Elliott Trudeau Intl flights
Los Angeles to Pearson Intl flights
San Francisco to Pearson Intl flights
O'Hare Intl to Pearson Intl flights
Boston to Pearson Intl flights
Reagan-National to Pearson Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Dallas/Fort Worth to Pearson Intl flights
Boston to Toronto Island flights
Dulles Intl to Pearson Intl flights
Atlanta to Pearson Intl flights
Hobby to Pearson Intl flights
Seattle to Pearson Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
Boston to Pierre Elliott Trudeau Intl flights
Sky Harbor Intl to Pearson Intl flights
Fort Lauderdale to Pierre Elliott Trudeau Intl flights
Dulles Intl to Toronto Island flights
George Bush Intcntl to Pearson Intl flights
Minneapolis to Pearson Intl flights
Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights
Midway to Toronto Island flights
Baltimore to Pearson Intl flights
San Francisco to Pierre Elliott Trudeau Intl flights
Fort Lauderdale to Pearson Intl flights
Raleigh to Pearson Intl flights
Orlando to Pearson Intl flights
Philadelphia to Pierre Elliott Trudeau Intl flights
Midway to Pearson Intl flights
Minneapolis to Pierre Elliott Trudeau Intl flights
John F Kennedy Intl to Toronto Island flights
O'Hare Intl to Toronto Island flights
San Diego to Pearson Intl flights
Charlotte to Pearson Intl flights
Los Angeles to Toronto Island flights
Ontario to Pearson Intl flights
Denver to Pierre Elliott Trudeau Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
Tampa to Pearson Intl flights
Philadelphia to Pearson Intl flights
Denver to Pearson Intl flights
Hobby to Pierre Elliott Trudeau Intl flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.