What is the cheapest airline that flies from London to Washington, D.C.?

Air Canada and United Airlines are the most popular carriers operating from London to Washington, D.C.

Which airlines fly to Washington, D.C.?

Air Canada, WestJet and United Airlines are the top three most popular airlines that fly to Washington, D.C. from London, Ontario according to our data. Air Canada is the first choice among our users, with 69% of people opting to fly with this airline when travelling to Washington, D.C.. Keep in mind that there are 7 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from London Airport to Washington, D.C.?

Prices for flights from London Airport to Washington, D.C. refresh daily.

How old do you have to be to fly from London Airport to Washington, D.C.?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 341 Cheap Flights from London to Washington, D.C. in 2025

1 adult

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Find the cheapest flights from London, Ontario to Washington, D.C.

Round-trip

One-way

Cheap round-trip flights

6:00 a.m. - 4:30 a.m.YXU-BWI

22h 30m2 stops

11:56 a.m. - 5:12 a.m.BWI-YXU

17h 16m2 stops

C$ 706

Find Deal

Tue, 30 Sep - Tue, 7 Oct

6:00 a.m. - 4:30 a.m.YXU-BWI

22h 30m2 stops

9:00 p.m. - 5:12 a.m.BWI-YXU

32h 12m3 stops

C$ 713

Find Deal

Tue, 30 Sep - Tue, 7 Oct

8:00 p.m. - 4:30 a.m.YXU-BWI

32h 30m3 stops

9:00 p.m. - 5:12 a.m.BWI-YXU

32h 12m3 stops

C$ 721

Find Deal

Tue, 30 Sep - Tue, 7 Oct

3:50 p.m. - 9:25 p.m.YXU-IAD

5h 35m1 stop

3:36 p.m. - 9:27 p.m.IAD-YXU

5h 51m1 stop

C$ 883

Find Deal

Tue, 30 Sep - Tue, 7 Oct

10:00 a.m. - 4:10 p.m.YXU-IAD

6h 10m1 stop

8:16 a.m. - 3:02 p.m.IAD-YXU

6h 46m2 stops

C$ 911

Find Deal

Tue, 30 Sep - Tue, 7 Oct

3:50 p.m. - 7:44 p.m.YXU-DCA

3h 54m1 stop

11:00 a.m. - 3:02 p.m.DCA-YXU

4h 02m1 stop

C$ 926Air Canada

Find Deal

Tue, 30 Sep - Tue, 7 Oct

6:10 a.m. - 2:08 p.m.YXU-BWI

7h 58m2 stops

5:20 p.m. - 9:19 a.m.BWI-YXU

15h 59m2 stops

C$ 1,061United Airlines

Find Deal

Sat, 27 Sep - Sat, 27 Sep

6:00 a.m. - 2:00 p.m.YXU-IAD

32h 00m3 stops

4:05 a.m. - 5:12 a.m.IAD-YXU

25h 07m3 stops

C$ 1,933

Find Deal

Tue, 30 Sep - Tue, 7 Oct

momondo Fare Finder

Use the filters below to find and compare flights from London, Ontario to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBaltimore

YXU - BWI

YXUBWI

London

Tue 30/9

6:00 a.m.-4:30 a.m.

2 stops22h 30m

Baltimore/Washington

Tue 7/10

11:56 a.m.-5:12 a.m.

2 stops17h 16m

C$ 706

LondonBaltimore

YXU - BWI

YXUBWI

London

Tue 30/9

6:00 a.m.-4:30 a.m.

2 stops22h 30m

Baltimore/Washington

Tue 7/10

9:00 p.m.-5:12 a.m.

3 stops32h 12m

C$ 713

LondonBaltimore

YXU - BWI

YXUBWI

London

Tue 30/9

8:00 p.m.-4:30 a.m.

3 stops32h 30m

Baltimore/Washington

Tue 7/10

9:00 p.m.-5:12 a.m.

3 stops32h 12m

C$ 721

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Tue 30/9

3:50 p.m.-9:25 p.m.

1 stop5h 35m

Washington, D.C. Dulles Intl

Tue 7/10

3:36 p.m.-9:27 p.m.

1 stop5h 51m

C$ 883

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Tue 30/9

10:00 a.m.-4:10 p.m.

1 stop6h 10m

Washington, D.C. Dulles Intl

Tue 7/10

8:16 a.m.-3:02 p.m.

2 stops6h 46m

C$ 911

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Tue 30/9

3:50 p.m.-7:44 p.m.

1 stop3h 54m

Washington, D.C. Reagan-National

Tue 7/10

11:00 a.m.-3:02 p.m.

1 stop4h 02m

C$ 926

LondonBaltimore

YXU - BWI

YXUBWI

London

Sat 27/9

6:10 a.m.-2:08 p.m.

2 stops7h 58m

Baltimore/Washington

Sat 27/9

5:20 p.m.-9:19 a.m.

2 stops15h 59m

C$ 1,061

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Tue 30/9

6:00 a.m.-2:00 p.m.

3 stops32h 00m

Washington, D.C. Dulles Intl

Tue 7/10

4:05 a.m.-5:12 a.m.

3 stops25h 07m

C$ 1,933

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Mon 29/9

8:00 p.m.-7:55 p.m.

2 stops23h 55m

C$ 341

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Mon 29/9

8:00 p.m.-3:06 p.m.

3 stops43h 06m

C$ 388

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

How to get the cheapest flight ticket from London, Ontario to Washington, D.C.

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the morning is the cheapest time of day to fly from London, Ontario to Washington, D.C. when you can find flight prices for as low as C$ 642. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. At noon is when there is more demand to fly to Washington, D.C., so prices are often more expensive at around C$ 679 per ticket.

When to book flights from London, Ontario to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from London, Ontario to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap London, Ontario to Washington, D.C. (YXU to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London, Ontario to Washington, D.C.

Best price found	C$ 341
Fastest flight time	3h 38m
Direct flights	None
Airports in Washington, D.C.	3 airports

The best one-way flight to Washington, D.C. from London, Ontario in the past 72 hours is C$ 341. The best round-trip flight deal from London, Ontario to Washington, D.C. found on momondo in the last 72 hours is C$ 706.

The fastest flight from London, Ontario to Washington, D.C. takes 3h 38m

There are no direct flights from London, Ontario to Washington, D.C.. Popular non-direct routes for this connection are London Airport - Baltimore/Washington Airport, London Airport - Washington, D.C. Reagan-National Airport and London Airport - Washington, D.C. Dulles Intl Airport.

There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

Search flight deals

How far is London to Washington, D.C. by plane?
London and Washington, D.C. are 573.8 km apart from one another. A reasonable flight in good conditions will take 3h 54m.
When did momondo last update prices for flights from London Airport to Washington, D.C.?
Prices for flights from London Airport to Washington, D.C. refresh daily.
How old do you have to be to fly from London Airport to Washington, D.C.?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Alexandria

Herndon

Linthicum Heights

Bethesda

Silver Spring

Reston

Laurel

Fairfax

Capitol Heights

Arlington

Gettysburg

Manassas

Fredericksburg

Woodbridge

Rockville

McLean

National Harbor

Tysons

Why use momondo?

Why should I use momondo to find a flight deal from London to Washington, D.C.?

It is quick and easy to find London to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

Can I find flights from London to Washington, D.C. with flexible booking policies on momondo?

All flight searches from London to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Washington, D.C.?

momondo helps you find the best flight between London and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.