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$ 399 Cheap Flights from London to Washington, D.C. in 2025/26

1 adult

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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. - 9:21 p.m.DCA-YXU

10h 16m2 stops

C$ 584Air Canada

Find Deal

Thu, 22 Jan - Sat, 24 Jan

9:25 a.m. - 3:46 p.m.YXU-IAD

6h 21m1 stop

9:45 a.m. - 5:05 p.m.IAD-YXU

7h 20m2 stops

C$ 584Air Canada

Find Deal

Thu, 22 Jan - Mon, 26 Jan

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

4h 55m1 stop

6:50 p.m. - 8:46 a.m.DCA-YXU

13h 56m1 stop

C$ 634Air Canada

Find Deal

Thu, 22 Jan - Sat, 24 Jan

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

7h 09m2 stops

11:05 a.m. - 9:21 p.m.DCA-YXU

10h 16m2 stops

C$ 656Air Canada

Find Deal

Thu, 22 Jan - Sat, 24 Jan

9:25 a.m. - 3:46 p.m.YXU-IAD

6h 21m1 stop

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

4h 51m1 stop

C$ 656Air 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. - 5:05 p.m.DCA-YXU

10h 06m1 stop

C$ 705Air Canada

Find Deal

Thu, 22 Jan - Sat, 24 Jan

5:10 a.m. - 9:21 p.m.YXU-BWI

16h 11m2 stops

10:05 a.m. - 9:21 p.m.BWI-YXU

11h 16m2 stops

C$ 804United Airlines

Find Deal

Tue, 20 Jan - Thu, 22 Jan

5:10 a.m. - 9:21 p.m.YXU-BWI

16h 11m2 stops

10:05 a.m. - 9:21 p.m.BWI-YXU

11h 16m2 stops

C$ 902United Airlines

Find Deal

Tue, 20 Jan - Thu, 22 Jan

5:10 a.m. - 2:11 p.m.YXU-BWI

9h 01m2 stops

10:05 a.m. - 9:21 p.m.BWI-YXU

11h 16m2 stops

C$ 1,235United Airlines

Find Deal

Fri, 9 Jan - Fri, 16 Jan

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

YXU9:25 a.m.London

6h 21m

1 stop

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

26 Jan

IAD9:45 a.m.Washington, D.C. Dulles Intl

7h 20m

2 stops

YXU5:05 p.m.London

C$ 584

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

DCA6:50 p.m.Washington, D.C. Reagan-National

13h 56m

1 stop

YXU8:46 a.m.London

C$ 634

Find similar

Air Canada

22 Jan

YXU9:25 a.m.London

11h 29m

2 stops

IAD8:54 p.m.Washington, D.C. Dulles Intl

26 Jan

IAD9:45 a.m.Washington, D.C. Dulles Intl

11h 36m

2 stops

YXU9:21 p.m.London

C$ 656

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

20 Jan

YXU5:10 a.m.London

16h 11m

2 stops

BWI9:21 p.m.Baltimore/Washington

22 Jan

BWI10:05 a.m.Baltimore/Washington

11h 16m

2 stops

YXU9:21 p.m.London

C$ 804

Find similar

United Airlines

20 Jan

YXU5:10 a.m.London

16h 11m

2 stops

BWI9:21 p.m.Baltimore/Washington

22 Jan

BWI10:05 a.m.Baltimore/Washington

11h 16m

2 stops

YXU9:21 p.m.London

C$ 902

Find similar

United Airlines

2 Dec

YXU9:25 a.m.London

6h 21m

1 stop

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

9 Dec

IAD8:20 a.m.Washington, D.C. Dulles Intl

13h 01m

2 stops

YXU9:21 p.m.London

C$ 1,006

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.-9:21 p.m.

2 stops10h 16m

C$ 584

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Thu 22/1

9:25 a.m.-3:46 p.m.

1 stop6h 21m

Washington, D.C. Dulles Intl

Mon 26/1

9:45 a.m.-5:05 p.m.

2 stops7h 20m

C$ 584

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

6:50 p.m.-8:46 a.m.

1 stop13h 56m

C$ 634

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.-9:21 p.m.

2 stops10h 16m

C$ 656

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Thu 22/1

9:25 a.m.-3:46 p.m.

1 stop6h 21m

Washington, D.C. Dulles Intl

Mon 26/1

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

1 stop4h 51m

C$ 656

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.-5:05 p.m.

1 stop10h 06m

C$ 705

LondonBaltimore

YXU - BWI

YXUBWI

London

Tue 20/1

5:10 a.m.-9:21 p.m.

2 stops16h 11m

Baltimore/Washington

Thu 22/1

10:05 a.m.-9:21 p.m.

2 stops11h 16m

C$ 804

LondonBaltimore

YXU - BWI

YXUBWI

London

Tue 20/1

5:10 a.m.-9:21 p.m.

2 stops16h 11m

Baltimore/Washington

Thu 22/1

10:05 a.m.-9:21 p.m.

2 stops11h 16m

C$ 902

LondonBaltimore

YXU - BWI

YXUBWI

London

Fri 9/1

5:10 a.m.-2:11 p.m.

2 stops9h 01m

Baltimore/Washington

Fri 16/1

10:05 a.m.-9:21 p.m.

2 stops11h 16m

C$ 1,235

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Fri 9/1

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

1 stop4h 55m

C$ 399

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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$ 656. 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$ 694 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 4h 55m.
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

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.