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

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

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 6 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$ 397 Cheap Flights from London, Ontario to Washington, D.C. in 2026

1 adult

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:25 p.m. - 7:57 p.m.

YXU

DCA

4h 32m

1 stop

9:40 a.m. - 3:06 p.m.

DCA

YXU

5h 26m

1 stop

C$ 717Air Canada

Tue, 3 Nov - Sat, 7 Nov

3:25 p.m. - 8:10 p.m.

YXU

IAD

4h 45m

1 stop

4:30 p.m. - 9:46 p.m.

IAD

YXU

5h 16m

1 stop

C$ 717Air Canada

Tue, 3 Nov - Sat, 7 Nov

3:25 p.m. - 7:57 p.m.

YXU

DCA

4h 32m

1 stop

12:55 p.m. - 9:46 p.m.

DCA

YXU

8h 51m

2 stops

C$ 719Air Canada

Tue, 3 Nov - Sat, 7 Nov

9:45 a.m. - 3:50 p.m.

YXU

IAD

6h 05m

1 stop

4:30 p.m. - 9:46 p.m.

IAD

YXU

5h 16m

1 stop

C$ 719Air Canada

Tue, 3 Nov - Sat, 7 Nov

9:45 a.m. - 8:23 p.m.

YXU

IAD

10h 38m

2 stops

9:55 a.m. - 3:06 p.m.

IAD

YXU

5h 11m

1 stop

C$ 722Air Canada

Tue, 3 Nov - Sat, 7 Nov

9:45 a.m. - 8:23 p.m.

YXU

IAD

10h 38m

2 stops

9:55 a.m. - 3:06 p.m.

IAD

YXU

5h 11m

1 stop

C$ 723Air Canada

Tue, 3 Nov - Sat, 7 Nov

5:40 a.m. - 9:29 p.m.

YXU

BWI

15h 49m

2 stops

10:25 a.m. - 9:40 p.m.

BWI

YXU

11h 15m

2 stops

C$ 1,034United Airlines

Tue, 25 Aug - Sat, 29 Aug

10:05 a.m. - 9:29 p.m.

YXU

BWI

11h 24m

2 stops

8:10 a.m. - 9:40 p.m.

BWI

YXU

13h 30m

2 stops

C$ 1,037United Airlines

Tue, 25 Aug - Sat, 29 Aug

5:10 a.m. - 12:33 a.m.

YXU

BWI

19h 23m

2 stops

6:20 a.m. - 9:38 p.m.

BWI

YXU

15h 18m

2 stops

C$ 1,121United Airlines

Mon, 15 Jun - Wed, 17 Jun

2:40 p.m. - 10:44 p.m.

YXU

BWI

32h 04m

3 stops

12:25 p.m. - 5:20 a.m.

BWI

YXU

40h 55m

3 stops

C$ 1,688Multiple Airlines

Sun, 28 Jun - Sun, 5 Jul

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

3 Nov

YXU3:25 p.m.London

4h 45m

1 stop

IAD8:10 p.m.Washington, D.C. Dulles Intl

7 Nov

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

5h 16m

1 stop

YXU9:46 p.m.London

C$ 717

Air Canada

3 Nov

YXU9:45 a.m.London

6h 05m

1 stop

IAD3:50 p.m.Washington, D.C. Dulles Intl

7 Nov

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

5h 16m

1 stop

YXU9:46 p.m.London

C$ 719

Air Canada

3 Nov

YXU9:45 a.m.London

10h 38m

2 stops

IAD8:23 p.m.Washington, D.C. Dulles Intl

7 Nov

IAD9:55 a.m.Washington, D.C. Dulles Intl

5h 11m

1 stop

YXU3:06 p.m.London

C$ 722

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

25 Aug

YXU5:40 a.m.London

12h 03m

2 stops

BWI5:43 p.m.Baltimore/Washington

29 Aug

BWI10:25 a.m.Baltimore/Washington

11h 15m

2 stops

YXU9:40 p.m.London

C$ 1,034

United Airlines

25 Aug

YXU10:05 a.m.London

11h 24m

2 stops

BWI9:29 p.m.Baltimore/Washington

29 Aug

BWI8:10 a.m.Baltimore/Washington

13h 30m

2 stops

YXU9:40 p.m.London

C$ 1,037

United Airlines

15 Jun

YXU5:10 a.m.London

19h 23m

2 stops

BWI12:33 a.m.Baltimore/Washington

17 Jun

BWI6:20 a.m.Baltimore/Washington

15h 18m

2 stops

YXU9:38 p.m.London

C$ 1,121

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

Cheapest round-trip

Quickest round-trip

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Tue 3/11

3:25 p.m.-7:57 p.m.

1 stop4h 32m

Washington, D.C. Reagan-National

Sat 7/11

9:40 a.m.-3:06 p.m.

1 stop5h 26m

C$ 717

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Tue 3/11

3:25 p.m.-8:10 p.m.

1 stop4h 45m

Washington, D.C. Dulles Intl

Sat 7/11

4:30 p.m.-9:46 p.m.

1 stop5h 16m

C$ 717

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Tue 3/11

3:25 p.m.-7:57 p.m.

1 stop4h 32m

Washington, D.C. Reagan-National

Sat 7/11

12:55 p.m.-9:46 p.m.

2 stops8h 51m

C$ 719

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Tue 3/11

9:45 a.m.-3:50 p.m.

1 stop6h 05m

Washington, D.C. Dulles Intl

Sat 7/11

4:30 p.m.-9:46 p.m.

1 stop5h 16m

C$ 719

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Tue 3/11

9:45 a.m.-8:23 p.m.

2 stops10h 38m

Washington, D.C. Dulles Intl

Sat 7/11

9:55 a.m.-3:06 p.m.

1 stop5h 11m

C$ 722

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Tue 3/11

9:45 a.m.-8:23 p.m.

2 stops10h 38m

Washington, D.C. Dulles Intl

Sat 7/11

9:55 a.m.-3:06 p.m.

1 stop5h 11m

C$ 723

LondonBaltimore

YXU - BWI

YXUBWI

London

Tue 25/8

5:40 a.m.-9:29 p.m.

2 stops15h 49m

Baltimore/Washington

Sat 29/8

10:25 a.m.-9:40 p.m.

2 stops11h 15m

C$ 1,034

LondonBaltimore

YXU - BWI

YXUBWI

London

Tue 25/8

10:05 a.m.-9:29 p.m.

2 stops11h 24m

Baltimore/Washington

Sat 29/8

8:10 a.m.-9:40 p.m.

2 stops13h 30m

C$ 1,037

LondonBaltimore

YXU - BWI

YXUBWI

London

Mon 15/6

5:10 a.m.-12:33 a.m.

2 stops19h 23m

Baltimore/Washington

Wed 17/6

6:20 a.m.-9:38 p.m.

2 stops15h 18m

C$ 1,121

LondonBaltimore

YXU - BWI

YXUBWI

London

Sun 28/6

2:40 p.m.-10:44 p.m.

3 stops32h 04m

Baltimore/Washington

Sun 5/7

12:25 p.m.-5:20 a.m.

3 stops40h 55m

C$ 1,688

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

Can stopping save me money on London, Ontario to Washington, D.C. flights?

You could potentially save up to 57% on your flight if you consider stops on a London, Ontario to Washington, D.C. flight.

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	4h 32m
Direct flights	None

The fastest flight from London, Ontario to Washington, D.C. takes 4h 32m

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

Frequently asked questions about flying from London, Ontario to Washington, D.C.

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 4h 32m.
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

Gettysburg

Fairfax

Gaithersburg

Linthicum Heights

Bethesda

National Harbor

Reston

Laurel

Herndon

Fredericksburg

Arlington

Manassas

Woodbridge

Silver Spring

Falls Church

Rockville

McLean

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.

An easier way to manage your Washington, D.C. trip

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Fly into one of these airports located in Washington, D.C.

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

Cheap flights from London, Ontario to Washington, D.C. from C$ 397

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Big names, great deals

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Filter for what you want

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

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

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

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

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

momondo Fare Finder

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

See travel insights to Washington, D.C. from

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

Can stopping save me money on London, Ontario to Washington, D.C. flights?

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

Which airlines fly to Washington, D.C.?

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

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

Direct flights

Frequently asked questions about flying from London, Ontario to Washington, D.C.

Travelling to a place near Washington, D.C.?

Why use momondo?

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 36.1 km from Washington, D.C.

Fly your favourite airline to Washington, D.C.

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

Popular Cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from London, Ontario

According to popular flight searches on momondo this year

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