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Cheap flights from Washington, D.C. Dulles Intl Airport to London from $336

1 adult
1 adult, Economy, 0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:50 am - 5:20 amIAD  Washington, D.C. Dulles Intl-YXU London
21h 30m2 stops Atlanta Hartsfield-Jackson Calgary
Multiple Airlines Logo
7:40 am - 5:12 pmYXU  London-IAD Washington, D.C. Dulles Intl
33h 32m3 stops Calgary Los Angeles Atlanta Hartsfield-Jackson
$772Multiple Airlines
Wed, Oct 21 - Thu, Oct 29
Multiple Airlines Logo
9:06 pm - 5:20 amIAD  Washington, D.C. Dulles Intl-YXU London
32h 14m3 stops Atlanta Hartsfield-Jackson Vancouver Intl Calgary
Multiple Airlines Logo
7:40 am - 5:12 pmYXU  London-IAD Washington, D.C. Dulles Intl
33h 32m3 stops Calgary Los Angeles Atlanta Hartsfield-Jackson
$825Multiple Airlines
Wed, Oct 21 - Thu, Oct 29
Air Canada Logo
4:30 pm - 9:57 pmIAD  Washington, D.C. Dulles Intl-YXU London
5h 27m1 stop Toronto Pearson Intl
Air Canada Logo
3:25 pm - 8:10 pmYXU  London-IAD Washington, D.C. Dulles Intl
4h 45m1 stop Toronto Pearson Intl
$856Air Canada
Thu, Nov 5 - Thu, Nov 12
Air Canada Logo
4:30 pm - 9:49 pmIAD  Washington, D.C. Dulles Intl-YXU London
5h 19m1 stop Toronto Pearson Intl
Air Canada Logo
3:20 pm - 8:08 pmYXU  London-IAD Washington, D.C. Dulles Intl
4h 48m1 stop Toronto Pearson Intl
$871Air Canada
Sat, Mar 20 - Sat, Mar 27
Air Canada Logo
9:55 am - 2:50 pmIAD  Washington, D.C. Dulles Intl-YXU London
4h 55m1 stop Toronto Pearson Intl
Air Canada Logo
9:05 am - 8:25 pmYXU  London-IAD Washington, D.C. Dulles Intl
11h 20m1 stop Toronto Pearson Intl
$880Air Canada
Tue, Oct 6 - Sat, Oct 10
Air Canada Logo
9:45 am - 5:43 pmIAD  Washington, D.C. Dulles Intl-YXU London
7h 58m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
Air Canada Logo
9:05 am - 8:25 pmYXU  London-IAD Washington, D.C. Dulles Intl
11h 20m1 stop Toronto Pearson Intl
$888Air Canada
Tue, Oct 6 - Sat, Oct 10
Air Canada Logo
9:55 am - 2:50 pmIAD  Washington, D.C. Dulles Intl-YXU London
4h 55m1 stop Toronto Pearson Intl
Air Canada Logo
8:20 pm - 2:57 pmYXU  London-IAD Washington, D.C. Dulles Intl
18h 37m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
$894Air Canada
Tue, Oct 6 - Sat, Oct 10
Air Canada Logo
9:45 am - 5:43 pmIAD  Washington, D.C. Dulles Intl-YXU London
7h 58m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
Air Canada Logo
8:20 pm - 2:57 pmYXU  London-IAD Washington, D.C. Dulles Intl
18h 37m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
$902Air Canada
Tue, Oct 6 - Sat, Oct 10
Air Canada Logo
6:11 am - 2:47 pmIAD  Washington, D.C. Dulles Intl-YXU London
8h 36m2 stops Chicago O'Hare Intl Toronto Pearson Intl
Air Canada Logo
3:25 pm - 8:10 pmYXU  London-IAD Washington, D.C. Dulles Intl
4h 45m1 stop Toronto Pearson Intl
$932Air Canada
Fri, Nov 6 - Fri, Nov 13
Multiple Airlines Logo
7:40 am - 5:35 amIAD  Washington, D.C. Dulles Intl-YXU London
21h 55m2 stops Atlanta Hartsfield-Jackson Calgary
Multiple Airlines Logo
6:40 am - 5:12 pmYXU  London-IAD Washington, D.C. Dulles Intl
34h 32m3 stops Calgary Los Angeles Atlanta Hartsfield-Jackson
$935Multiple Airlines
Fri, Nov 6 - Fri, Nov 13

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

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to London, Ontario flight tickets
Air Canada
Nov 5
IAD4:30 pmWashington, D.C. Dulles Intl
5h 27m
1 stop
YXU9:57 pmLondon
Nov 12
YXU3:25 pmLondon
4h 45m
1 stop
IAD8:10 pmWashington, D.C. Dulles Intl
$856
Air Canada
Mar 20
IAD4:30 pmWashington, D.C. Dulles Intl
5h 19m
1 stop
YXU9:49 pmLondon
Mar 27
YXU3:20 pmLondon
4h 48m
1 stop
IAD8:08 pmWashington, D.C. Dulles Intl
$871
Air Canada
Oct 6
IAD9:55 amWashington, D.C. Dulles Intl
4h 55m
1 stop
YXU2:50 pmLondon
Oct 10
YXU9:05 amLondon
11h 20m
1 stop
IAD8:25 pmWashington, D.C. Dulles Intl
$880

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

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to London, Ontario flight tickets
United Airlines
Nov 5
IAD10:15 amWashington, D.C. Dulles Intl
11h 42m
2 stops
YXU9:57 pmLondon
Nov 12
YXU3:25 pmLondon
4h 45m
1 stop
IAD8:10 pmWashington, D.C. Dulles Intl
$984
United Airlines
Nov 6
IAD6:11 amWashington, D.C. Dulles Intl
8h 36m
2 stops
YXU2:47 pmLondon
Nov 13
YXU3:25 pmLondon
9h 05m
2 stops
IAD12:30 amWashington, D.C. Dulles Intl
$988
United Airlines
Nov 5
IAD10:15 amWashington, D.C. Dulles Intl
11h 42m
2 stops
YXU9:57 pmLondon
Nov 12
YXU5:30 amLondon
6h 14m
2 stops
IAD11:44 amWashington, D.C. Dulles Intl
$999

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Wed 10/21

7:50 am-5:20 am

2 stops21h 30m

London

Thu 10/29

7:40 am-5:12 pm

3 stops33h 32m

$772

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Wed 10/21

9:06 pm-5:20 am

3 stops32h 14m

London

Thu 10/29

7:40 am-5:12 pm

3 stops33h 32m

$825

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Thu 11/5

4:30 pm-9:57 pm

1 stop5h 27m

London

Thu 11/12

3:25 pm-8:10 pm

1 stop4h 45m

$856
Quickest round-trip

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Sat 3/20

4:30 pm-9:49 pm

1 stop5h 19m

London

Sat 3/27

3:20 pm-8:08 pm

1 stop4h 48m

$871

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Tue 10/6

9:55 am-2:50 pm

1 stop4h 55m

London

Sat 10/10

9:05 am-8:25 pm

1 stop11h 20m

$880

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Tue 10/6

9:45 am-5:43 pm

2 stops7h 58m

London

Sat 10/10

9:05 am-8:25 pm

1 stop11h 20m

$888

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Tue 10/6

9:55 am-2:50 pm

1 stop4h 55m

London

Sat 10/10

8:20 pm-2:57 pm

2 stops18h 37m

$894

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Tue 10/6

9:45 am-5:43 pm

2 stops7h 58m

London

Sat 10/10

8:20 pm-2:57 pm

2 stops18h 37m

$902

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Fri 11/6

6:11 am-2:47 pm

2 stops8h 36m

London

Fri 11/13

3:25 pm-8:10 pm

1 stop4h 45m

$932

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Fri 11/6

7:40 am-5:35 am

2 stops21h 55m

London

Fri 11/13

6:40 am-5:12 pm

3 stops34h 32m

$935

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport 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

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

Air Canada is the most popular carrier operating from Washington, D.C. Dulles Intl to London

What airlines fly to London, Ontario?

Air Canada, United Airlines and Delta are the top three most popular airlines that fly to London, Ontario from Washington, D.C. Dulles Intl Airport according to our data. Air Canada is the first choice among our users, with 58% of people opting to fly with this airline when traveling to London, Ontario. Keep in mind that there are 4 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to London, Ontario (IAD to YXU) flight deals and tips

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

Best Price Found

$336

Fastest flight time

4h 52m

Direct flights

None
The best one-way flight to London, Ontario from Washington, D.C. Dulles Intl Airport in the past 72 hours is $336. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to London, Ontario found on momondo in the last 72 hours is $772.
The fastest flight from Washington, D.C. Dulles Intl Airport to London, Ontario takes 4h 52m
There are no direct flights from Washington, D.C. Dulles Intl Airport to London, Ontario. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to London, Ontario.
Search flight deals

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

  • How far is Washington, D.C. Dulles Intl to London by plane?

    There are 341.3 mi between Washington, D.C. Dulles Intl and London. In terms of flight time, this usually takes a little over 4h 52m.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to London Airport were last updated today.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport 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.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Grand Bend
Port Stanley

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to London. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to London from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to London from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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.

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