Which airlines fly to Washington, D.C.?

Air Canada, United Airlines and WestJet 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.

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

United Airlines is the most popular carrier operating from London to Washington, D.C.

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$ 364 Cheap Flights from London to Washington, D.C. in 2025/26

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

Enter your travel dates to find the best prices.

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

4h 55m1 stop

11:05 a.m. - 9:20 p.m.DCA-YXU

10h 15m2 stops

C$ 523Air Canada

Find Deal

Thu, 22 Jan - Sat, 24 Jan

9:50 a.m. - 8:54 p.m.YXU-IAD

11h 04m2 stops

9:45 a.m. - 9:20 p.m.IAD-YXU

11h 35m2 stops

C$ 523Air Canada

Find Deal

Thu, 22 Jan - Mon, 26 Jan

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

4h 55m1 stop

6:59 a.m. - 9:20 p.m.DCA-YXU

14h 21m1 stop

C$ 574Air Canada

Find Deal

Thu, 22 Jan - Sat, 24 Jan

9:50 a.m. - 3:46 p.m.YXU-IAD

5h 56m1 stop

4:30 p.m. - 9:20 p.m.IAD-YXU

4h 50m1 stop

C$ 655Air Canada

Find Deal

Thu, 22 Jan - Mon, 26 Jan

9:50 a.m. - 3:46 p.m.YXU-IAD

5h 56m1 stop

4:30 p.m. - 9:20 p.m.IAD-YXU

4h 50m1 stop

C$ 656Air Canada

Find Deal

Thu, 22 Jan - Mon, 26 Jan

5:10 a.m. - 12:19 p.m.YXU-DCA

7h 09m2 stops

11:05 a.m. - 9:20 p.m.DCA-YXU

10h 15m2 stops

C$ 659Air Canada

Find Deal

Thu, 22 Jan - Sat, 24 Jan

5:40 p.m. - 9:25 p.m.YXU-IAD

3h 45m1 stop

5:16 p.m. - 9:20 p.m.IAD-YXU

4h 04m1 stop

C$ 739United Airlines

Find Deal

Sat, 17 Jan - Sat, 24 Jan

9:25 a.m. - 11:19 p.m.YXU-IAD

13h 54m2 stops

4:30 p.m. - 9:21 p.m.IAD-YXU

4h 51m1 stop

C$ 798United Airlines

Find Deal

Sun, 22 Mar - Sat, 28 Mar

9:25 a.m. - 11:19 p.m.YXU-IAD

13h 54m2 stops

6:00 a.m. - 9:21 p.m.IAD-YXU

15h 21m2 stops

C$ 879United Airlines

Find Deal

Sun, 22 Mar - Sat, 28 Mar

8:10 p.m. - 11:59 p.m.YXU-BWI

27h 49m3 stops

10:57 a.m. - 7:13 p.m.BWI-YXU

32h 16m3 stops

C$ 1,529Multiple Airlines

Find Deal

Sun, 22 Mar - Sat, 28 Mar

Air Canada flights from London, Ontario to Washington, D.C.

Our best Air Canada deals on London, Ontario to Washington, D.C. flight tickets

Air Canada

22 Jan

YXU9:50 a.m.London

5h 56m

1 stop

IAD3:46 p.m.Washington, D.C. Dulles Intl

26 Jan

IAD4:30 p.m.Washington, D.C. Dulles Intl

4h 50m

1 stop

YXU9:20 p.m.London

C$ 523

Find similar

Air Canada

22 Jan

YXU5:40 p.m.London

4h 55m

1 stop

DCA10:35 p.m.Washington, D.C. Reagan-National

24 Jan

DCA6:59 a.m.Washington, D.C. Reagan-National

14h 21m

1 stop

YXU9:20 p.m.London

C$ 574

Find similar

Air Canada

22 Jan

YXU9:50 a.m.London

5h 56m

1 stop

IAD3:46 p.m.Washington, D.C. Dulles Intl

26 Jan

IAD4:30 p.m.Washington, D.C. Dulles Intl

4h 50m

1 stop

YXU9:20 p.m.London

C$ 655

Find similar

United Airlines flights from London, Ontario to Washington, D.C.

Our best United Airlines deals on London, Ontario to Washington, D.C. flight tickets

United Airlines

17 Jan

YXU5:40 p.m.London

3h 45m

1 stop

IAD9:25 p.m.Washington, D.C. Dulles Intl

24 Jan

IAD5:16 p.m.Washington, D.C. Dulles Intl

4h 04m

1 stop

YXU9:20 p.m.London

C$ 739

Find similar

United Airlines

22 Mar

YXU9:25 a.m.London

13h 54m

2 stops

IAD11:19 p.m.Washington, D.C. Dulles Intl

28 Mar

IAD4:30 p.m.Washington, D.C. Dulles Intl

4h 51m

1 stop

YXU9:21 p.m.London

C$ 798

Find similar

United Airlines

22 Mar

YXU9:25 a.m.London

13h 54m

2 stops

IAD11:19 p.m.Washington, D.C. Dulles Intl

28 Mar

IAD6:00 a.m.Washington, D.C. Dulles Intl

15h 21m

2 stops

YXU9:21 p.m.London

C$ 879

Find similar

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

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Thu 22/1

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

1 stop4h 55m

Washington, D.C. Reagan-National

Sat 24/1

11:05 a.m.-9:20 p.m.

2 stops10h 15m

C$ 523

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Thu 22/1

9:50 a.m.-8:54 p.m.

2 stops11h 04m

Washington, D.C. Dulles Intl

Mon 26/1

9:45 a.m.-9:20 p.m.

2 stops11h 35m

C$ 523

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Thu 22/1

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

1 stop4h 55m

Washington, D.C. Reagan-National

Sat 24/1

6:59 a.m.-9:20 p.m.

1 stop14h 21m

C$ 574

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Thu 22/1

9:50 a.m.-3:46 p.m.

1 stop5h 56m

Washington, D.C. Dulles Intl

Mon 26/1

4:30 p.m.-9:20 p.m.

1 stop4h 50m

C$ 655

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Thu 22/1

9:50 a.m.-3:46 p.m.

1 stop5h 56m

Washington, D.C. Dulles Intl

Mon 26/1

4:30 p.m.-9:20 p.m.

1 stop4h 50m

C$ 656

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Thu 22/1

5:10 a.m.-12:19 p.m.

2 stops7h 09m

Washington, D.C. Reagan-National

Sat 24/1

11:05 a.m.-9:20 p.m.

2 stops10h 15m

C$ 659

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Sat 17/1

5:40 p.m.-9:25 p.m.

1 stop3h 45m

Washington, D.C. Dulles Intl

Sat 24/1

5:16 p.m.-9:20 p.m.

1 stop4h 04m

C$ 739

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Sun 22/3

9:25 a.m.-11:19 p.m.

2 stops13h 54m

Washington, D.C. Dulles Intl

Sat 28/3

4:30 p.m.-9:21 p.m.

1 stop4h 51m

C$ 798

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Sun 22/3

9:25 a.m.-11:19 p.m.

2 stops13h 54m

Washington, D.C. Dulles Intl

Sat 28/3

6:00 a.m.-9:21 p.m.

2 stops15h 21m

C$ 879

LondonBaltimore

YXU - BWI

YXUBWI

London

Sun 22/3

8:10 p.m.-11:59 p.m.

3 stops27h 49m

Baltimore/Washington

Sat 28/3

10:57 a.m.-7:13 p.m.

3 stops32h 16m

C$ 1,529

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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$ 650. 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$ 688 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.

Fastest flight time	3h 45m
Direct flights	None

The fastest flight from London, Ontario to Washington, D.C. takes 3h 45m

There are no direct flights from London, Ontario to Washington, D.C.. There are no popular flight routes from London, Ontario to Washington, D.C..

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 45m.
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.

Gettysburg

Alexandria

Fairfax

Linthicum Heights

Silver Spring

Bethesda

Gaithersburg

Reston

Herndon

Laurel

Capitol Heights

Arlington

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.