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Cheap flights from District of Columbia to London, ON from C$ 256

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YXU
28 Mar — 4 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from District of Columbia to London

Enter your travel dates to find the best prices.

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 26 February 2026.

Tue 14/76:59 a.m.
DCA
-
YXU
1 stop4h 46m
Air Canada
Fri 17/73:30 p.m.
YXU
-
DCA
1 stop4h 27m
Air Canada
Deal found 25/2C$ 749
Wed 8/44:30 p.m.
IAD
-
YXU
1 stop4h 48m
Air Canada
Wed 15/49:25 a.m.
YXU
-
IAD
1 stop6h 14m
Air Canada
Deal found 23/2C$ 749
Tue 28/412:55 p.m.
DCA
-
YXU
2 stops8h 24m
Air Canada
Wed 29/45:40 p.m.
YXU
-
DCA
1 stop5h 03m
Air Canada
Deal found 24/2C$ 755
Tue 28/44:30 p.m.
IAD
-
YXU
1 stop4h 49m
Air Canada
Wed 29/49:25 a.m.
YXU
-
IAD
2 stops10h 15m
Air Canada
Deal found 24/2C$ 761
Sun 12/46:50 p.m.
DCA
-
YXU
1 stop13h 54m
Air Canada
Sun 19/45:10 a.m.
YXU
-
DCA
2 stops6h 51m
Air Canada
Deal found 26/2C$ 790
Fri 8/54:10 p.m.
IAD
-
YXU
1 stop5h 28m
Air Canada
Mon 11/59:30 a.m.
YXU
-
IAD
1 stop6h 04m
Air Canada
Deal found 22/2C$ 816
Sat 28/36:50 p.m.
DCA
-
YXU
1 stop13h 53m
Air Canada
Sat 4/45:10 a.m.
YXU
-
DCA
1 stop3h 43m
Air Canada
Deal found 23/2C$ 862
Wed 8/46:00 a.m.
DCA
-
YXU
2 stops11h 03m
United Airlines
Wed 15/45:10 a.m.
YXU
-
DCA
1 stop3h 43m
United Airlines
Deal found 23/2C$ 895
Wed 8/46:00 a.m.
IAD
-
YXU
2 stops11h 03m
United Airlines
Wed 15/45:40 p.m.
YXU
-
IAD
1 stop3h 45m
United Airlines
Deal found 23/2C$ 895
Fri 17/76:59 a.m.
DCA
-
YXU
1 stop4h 46m
United Airlines
Tue 21/76:00 a.m.
YXU
-
DCA
2 stops9h 52m
United Airlines
Deal found 25/2C$ 902
Fri 17/79:55 a.m.
IAD
-
YXU
1 stop5h 05m
United Airlines
Tue 21/73:30 p.m.
YXU
-
IAD
2 stops7h 49m
United Airlines
Deal found 25/2C$ 902
Sun 12/410:14 p.m.
IAD
-
YXU
1 stop10h 30m
United Airlines
Sun 19/45:40 p.m.
YXU
-
IAD
1 stop3h 45m
United Airlines
Deal found 26/2C$ 914

Find 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 26 February 2026.

Round-trip from

C$ 749

One-way from

C$ 342
Air Canada
  • Air Canada
  • 14/7-17/7
  • 2 total stops
  • 9h 13m total
  • District of Columbia to London
Search Deals
Air Canada
  • Air Canada
  • 21/4
  • 2 total stops
  • 8h 24m total
  • District of Columbia to London
Search Deals

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 629,999 searches. Data last updated 26 February 2026.
Use the filters below to find and compare flights from District of Columbia to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Fri 17/7

6:59 a.m.-11:45 a.m.

1 stop4h 46m

London

Tue 21/7

3:30 p.m.-7:57 p.m.

1 stop4h 27m

C$ 749

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Tue 14/7

6:59 a.m.-11:45 a.m.

1 stop4h 46m

London

Fri 17/7

3:30 p.m.-7:57 p.m.

1 stop4h 27m

C$ 749

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Wed 8/4

4:30 p.m.-9:18 p.m.

1 stop4h 48m

London

Wed 15/4

9:25 a.m.-3:39 p.m.

1 stop6h 14m

C$ 749

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Tue 14/7

4:25 p.m.-9:40 p.m.

1 stop5h 15m

London

Fri 17/7

3:30 p.m.-8:24 p.m.

1 stop4h 54m

C$ 749

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Tue 28/4

12:55 p.m.-9:18 p.m.

2 stops8h 23m

London

Wed 29/4

5:10 a.m.-8:53 a.m.

1 stop3h 43m

C$ 755

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Mon 9/3

12:55 p.m.-9:21 p.m.

2 stops8h 26m

London

Thu 12/3

5:40 p.m.-10:35 p.m.

1 stop4h 55m

C$ 755

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Tue 28/4

4:30 p.m.-9:18 p.m.

1 stop4h 48m

London

Wed 29/4

9:25 a.m.-7:40 p.m.

2 stops10h 15m

C$ 761

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Fri 8/5

4:10 p.m.-9:38 p.m.

1 stop5h 28m

London

Mon 11/5

9:30 a.m.-3:34 p.m.

1 stop6h 04m

C$ 816

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Sat 28/3

6:50 p.m.-8:43 a.m.

1 stop13h 53m

London

Sat 4/4

5:10 a.m.-8:53 a.m.

1 stop3h 43m

C$ 862

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Tue 14/7

1:00 p.m.-9:40 p.m.

2 stops8h 40m

London

Fri 17/7

3:30 p.m.-7:57 p.m.

1 stop4h 27m

C$ 895

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/2

Showing 1-10 of 26 resultsSorted by cheapest first
1
2
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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, September is the cheapest month in which you can book a flight from District of Columbia to London, Ontario (average of C$ 144). Flying from District of Columbia to London, Ontario in October is currently the most expensive (average of C$ 281). 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), located 8.6 km from the city centre, is the airport you fly into when you book flights from District of Columbia to London.

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

    There are many flights that can get you from District of Columbia to London, Ontario in 4h 46m. Fly via Air Canada to get the fastest option. Airlines will cover a distance of 578 km.

  • 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, September is the cheapest month in which you can book a flight from District of Columbia to London, Ontario (average of C$ 144). Flying from District of Columbia to London, Ontario in October is currently the most expensive (average of C$ 281). 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

Travelling to a place near London?

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

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Fly with Cheapflights

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How does Cheapflights help users find flights from District of Columbia to London?

Cheapflights helps you search for flights from District of Columbia to London via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from District of Columbia to London?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from District of Columbia to London.

Can Cheapflights find flights from District of Columbia to London with no change fees?

Yes, we can. To see specific flights from District of Columbia to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from District of Columbia to London become cheaper?

Not ready to book yet? You can track prices for flights from District of Columbia to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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