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

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

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to London Airport.

What documentation or ID do you need to fly to London Airport?

The travel and health documents required for your trip to London Airport 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 London Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 839 Cheap Flights from Washington, D.C. to London, Ontario in 2026

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

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:40 p.m. - 5:20 a.m.

DCA

YXU

16h 40m

2 stops

6:20 p.m. - 10:31 p.m.

YXU

DCA

4h 11m

1 stop

C$ 839Multiple Airlines

Mon, 13 Jul - Sun, 19 Jul

3:45 p.m. - 5:20 a.m.

IAD

YXU

13h 35m

2 stops

10:05 a.m. - 3:24 p.m.

YXU

IAD

5h 19m

1 stop

C$ 861Multiple Airlines

Mon, 13 Jul - Sun, 19 Jul

4:20 p.m. - 8:32 p.m.

IAD

YXU

4h 12m

1 stop

10:05 a.m. - 3:24 p.m.

YXU

IAD

5h 19m

1 stop

C$ 867Air Canada

Mon, 13 Jul - Sun, 19 Jul

11:00 a.m. - 2:52 p.m.

DCA

YXU

3h 52m

1 stop

6:20 p.m. - 10:31 p.m.

YXU

DCA

4h 11m

1 stop

C$ 871Air Canada

Mon, 13 Jul - Sun, 19 Jul

12:40 p.m. - 5:20 a.m.

DCA

YXU

16h 40m

2 stops

9:10 p.m. - 12:00 p.m.

YXU

DCA

14h 50m

2 stops

C$ 878Multiple Airlines

Mon, 13 Jul - Sun, 19 Jul

11:00 a.m. - 2:55 p.m.

DCA

YXU

3h 55m

1 stop

6:20 p.m. - 10:34 p.m.

YXU

DCA

4h 14m

1 stop

C$ 985Air Canada

Tue, 8 Sep - Wed, 9 Sep

9:55 a.m. - 2:55 p.m.

IAD

YXU

5h 00m

1 stop

3:30 p.m. - 8:25 p.m.

YXU

IAD

4h 55m

1 stop

C$ 985Air Canada

Fri, 9 Oct - Mon, 12 Oct

12:40 p.m. - 9:40 p.m.

DCA

YXU

9h 00m

2 stops

6:20 p.m. - 10:34 p.m.

YXU

DCA

4h 14m

1 stop

C$ 992Air Canada

Tue, 8 Sep - Wed, 9 Sep

9:45 a.m. - 5:42 p.m.

IAD

YXU

7h 57m

2 stops

10:05 a.m. - 7:01 p.m.

YXU

IAD

8h 56m

2 stops

C$ 992Air Canada

Mon, 13 Jul - Sun, 19 Jul

12:40 p.m. - 5:20 a.m.

DCA

YXU

16h 40m

2 stops

2:40 p.m. - 12:00 p.m.

YXU

DCA

21h 20m

3 stops

C$ 998Multiple Airlines

Mon, 13 Jul - Sun, 19 Jul

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

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

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

United Airlines

24 Sep

DCA11:00 a.m.Washington, D.C. Reagan-National

3h 55m

1 stop

YXU2:55 p.m.London

27 Sep

YXU6:20 p.m.London

4h 14m

1 stop

DCA10:34 p.m.Washington, D.C. Reagan-National

C$ 1,136

United Airlines

9 Oct

IAD10:40 p.m.Washington, D.C. Dulles Intl

16h 15m

2 stops

YXU2:55 p.m.London

12 Oct

YXU10:05 a.m.London

12h 54m

2 stops

IAD10:59 p.m.Washington, D.C. Dulles Intl

C$ 1,171

United Airlines

29 Jul

DCA11:00 a.m.Washington, D.C. Reagan-National

3h 52m

1 stop

YXU2:52 p.m.London

5 Aug

YXU6:20 p.m.London

4h 11m

1 stop

DCA10:31 p.m.Washington, D.C. Reagan-National

C$ 1,184

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

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

Air Canada

13 Jul

IAD4:20 p.m.Washington, D.C. Dulles Intl

4h 12m

1 stop

YXU8:32 p.m.London

19 Jul

YXU10:05 a.m.London

5h 19m

1 stop

IAD3:24 p.m.Washington, D.C. Dulles Intl

C$ 867

Air Canada

13 Jul

DCA11:00 a.m.Washington, D.C. Reagan-National

3h 52m

1 stop

YXU2:52 p.m.London

19 Jul

YXU6:20 p.m.London

4h 11m

1 stop

DCA10:31 p.m.Washington, D.C. Reagan-National

C$ 871

Air Canada

9 Oct

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

5h 00m

1 stop

YXU2:55 p.m.London

12 Oct

YXU3:30 p.m.London

4h 55m

1 stop

IAD8:25 p.m.Washington, D.C. Dulles Intl

C$ 985

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Mon 13/7

12:40 p.m.-5:20 a.m.

2 stops16h 40m

London

Sun 19/7

6:20 p.m.-10:31 p.m.

1 stop4h 11m

C$ 839

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Mon 13/7

3:45 p.m.-5:20 a.m.

2 stops13h 35m

London

Sun 19/7

10:05 a.m.-3:24 p.m.

1 stop5h 19m

C$ 861

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Mon 13/7

4:20 p.m.-8:32 p.m.

1 stop4h 12m

London

Sun 19/7

10:05 a.m.-3:24 p.m.

1 stop5h 19m

C$ 867

Quickest round-trip

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Mon 13/7

11:00 a.m.-2:52 p.m.

1 stop3h 52m

London

Sun 19/7

6:20 p.m.-10:31 p.m.

1 stop4h 11m

C$ 871

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Mon 13/7

12:40 p.m.-5:20 a.m.

2 stops16h 40m

London

Sun 19/7

9:10 p.m.-12:00 p.m.

2 stops14h 50m

C$ 878

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Tue 8/9

11:00 a.m.-2:55 p.m.

1 stop3h 55m

London

Wed 9/9

6:20 p.m.-10:34 p.m.

1 stop4h 14m

C$ 985

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Fri 9/10

9:55 a.m.-2:55 p.m.

1 stop5h 00m

London

Mon 12/10

3:30 p.m.-8:25 p.m.

1 stop4h 55m

C$ 985

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Tue 8/9

12:40 p.m.-9:40 p.m.

2 stops9h 00m

London

Wed 9/9

6:20 p.m.-10:34 p.m.

1 stop4h 14m

C$ 992

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Mon 13/7

9:45 a.m.-5:42 p.m.

2 stops7h 57m

London

Sun 19/7

10:05 a.m.-7:01 p.m.

2 stops8h 56m

C$ 992

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Mon 13/7

12:40 p.m.-5:20 a.m.

2 stops16h 40m

London

Sun 19/7

2:40 p.m.-12:00 p.m.

3 stops21h 20m

C$ 998

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

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

How long does it take to fly to London, Ontario?

The average flight duration from Washington, D.C. to London, Ontario depends on which airport you fly into and out of. Flying from Washington, D.C. to Toronto Pearson Intl Airport is 1h 28m on average, while flying from Baltimore to Toronto Pearson Intl Airport is 4h 52m on average. Toronto Pearson Intl Airport is the most popular airport in London, Ontario.

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

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

Estimated round-trip price

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

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

Fastest flight time	3h 55m
Direct flights	None

The fastest flight from Washington, D.C. to London, Ontario takes 3h 55m

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

Search flight deals

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

How far is Washington, D.C. to London by plane?
Washington, D.C. and London are 573.8 km apart from one another. In terms of flight time, this usually takes a little over 3h 55m.
When did momondo last update prices for flights from Washington, D.C. to London Airport?
Prices for flights from Washington, D.C. to London Airport refresh daily.
How old do you have to be to fly from Washington, D.C. to London Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to London Airport.
What documentation or ID do you need to fly to London Airport?
The travel and health documents required for your trip to London Airport 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 London Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Grand Bend

Port Stanley

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Washington, D.C..

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

momondo does allow users to show only those flights to London from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Washington, D.C. to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to London from Washington, D.C.. 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.