Cheap flights from London, Ontario to Washington, D.C. from $260

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London, Ontario to Washington, D.C. departing on 4/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Air Canada Logo
9:30 am - 3:29 pm
YXU
-
IAD
5h 59m
1 stop
Air Canada Logo
4:05 pm - 9:38 pm
IAD
-
YXU
5h 33m
1 stop
$550Air Canada
Wed, May 6 - Fri, May 8
Air Canada Logo
9:30 am - 6:58 pm
YXU
-
IAD
9h 28m
2 stops
Air Canada Logo
4:05 pm - 9:38 pm
IAD
-
YXU
5h 33m
1 stop
$553Air Canada
Wed, May 6 - Fri, May 8
Air Canada Logo
9:30 am - 3:29 pm
YXU
-
IAD
5h 59m
1 stop
Air Canada Logo
9:55 am - 9:38 pm
IAD
-
YXU
11h 43m
1 stop
$562Air Canada
Wed, May 6 - Fri, May 8
Air Canada Logo
5:40 am - 3:03 pm
YXU
-
IAD
9h 23m
2 stops
Air Canada Logo
9:55 am - 9:38 pm
IAD
-
YXU
11h 43m
1 stop
$565Air Canada
Wed, May 6 - Fri, May 8
Air Canada Logo
9:30 am - 3:29 pm
YXU
-
IAD
5h 59m
1 stop
Air Canada Logo
3:45 pm - 8:53 am
IAD
-
YXU
17h 08m
2 stops
$572Air Canada
Wed, May 6 - Fri, May 8
Air Canada Logo
9:30 am - 6:58 pm
YXU
-
IAD
9h 28m
2 stops
Air Canada Logo
3:45 pm - 8:53 am
IAD
-
YXU
17h 08m
2 stops
$574Air Canada
Wed, May 6 - Fri, May 8
Air Canada Logo
12:20 pm - 6:58 pm
YXU
-
IAD
6h 38m
2 stops
Air Canada Logo
3:45 pm - 8:53 am
IAD
-
YXU
17h 08m
2 stops
$575Air Canada
Wed, May 6 - Fri, May 8
Air Canada Logo
9:25 am - 3:39 pm
YXU
-
IAD
6h 14m
1 stop
Air Canada Logo
9:55 am - 5:04 pm
IAD
-
YXU
7h 09m
2 stops
$576Air Canada
Fri, Apr 10 - Sat, Apr 11
Air Canada Logo
9:25 am - 3:39 pm
YXU
-
IAD
6h 14m
1 stop
Air Canada Logo
9:55 am - 5:04 pm
IAD
-
YXU
7h 09m
2 stops
$577Air Canada
Fri, Apr 10 - Sat, Apr 11
Air Canada Logo
9:25 am - 7:40 pm
YXU
-
IAD
10h 15m
2 stops
Air Canada Logo
9:55 am - 5:04 pm
IAD
-
YXU
7h 09m
2 stops
$579Air Canada
Fri, Apr 10 - Sat, Apr 11

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

Our best Air Canada deals on London, Ontario to Washington, D.C. Dulles Intl Airport flight tickets
Air Canada
May 6
YXU9:30 amLondon
5h 59m
1 stop
IAD3:29 pmWashington, D.C. Dulles Intl
May 8
IAD4:05 pmWashington, D.C. Dulles Intl
5h 33m
1 stop
YXU9:38 pmLondon
$550
Air Canada
May 6
YXU9:30 amLondon
9h 28m
2 stops
IAD6:58 pmWashington, D.C. Dulles Intl
May 8
IAD4:05 pmWashington, D.C. Dulles Intl
5h 33m
1 stop
YXU9:38 pmLondon
$553
Air Canada
May 6
YXU9:30 amLondon
5h 59m
1 stop
IAD3:29 pmWashington, D.C. Dulles Intl
May 8
IAD9:55 amWashington, D.C. Dulles Intl
11h 43m
1 stop
YXU9:38 pmLondon
$562

momondo Fare Finder

 
Customize your flight search to find flights from London, Ontario to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 18, 2026.
Use the filters below to find and compare flights from London, Ontario to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Wed 5/6

9:30 am-3:29 pm

1 stop5h 59m

Washington, D.C. Dulles Intl

Fri 5/8

4:05 pm-9:38 pm

1 stop5h 33m

$550

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Wed 5/6

9:30 am-6:58 pm

2 stops9h 28m

Washington, D.C. Dulles Intl

Fri 5/8

4:05 pm-9:38 pm

1 stop5h 33m

$553

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Wed 5/6

9:30 am-3:29 pm

1 stop5h 59m

Washington, D.C. Dulles Intl

Fri 5/8

9:55 am-9:38 pm

1 stop11h 43m

$562

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Wed 5/6

5:40 am-3:03 pm

2 stops9h 23m

Washington, D.C. Dulles Intl

Fri 5/8

9:55 am-9:38 pm

1 stop11h 43m

$565

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Wed 5/6

9:30 am-3:29 pm

1 stop5h 59m

Washington, D.C. Dulles Intl

Fri 5/8

3:45 pm-8:53 am

2 stops17h 08m

$572

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Wed 5/6

9:30 am-6:58 pm

2 stops9h 28m

Washington, D.C. Dulles Intl

Fri 5/8

3:45 pm-8:53 am

2 stops17h 08m

$574

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Wed 5/6

12:20 pm-6:58 pm

2 stops6h 38m

Washington, D.C. Dulles Intl

Fri 5/8

3:45 pm-8:53 am

2 stops17h 08m

$575

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Fri 4/10

9:25 am-3:39 pm

1 stop6h 14m

Washington, D.C. Dulles Intl

Sat 4/11

9:55 am-5:04 pm

2 stops7h 09m

$576

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Fri 4/10

9:25 am-3:39 pm

1 stop6h 14m

Washington, D.C. Dulles Intl

Sat 4/11

9:55 am-5:04 pm

2 stops7h 09m

$577

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Fri 4/10

9:25 am-7:40 pm

2 stops10h 15m

Washington, D.C. Dulles Intl

Sat 4/11

9:55 am-5:04 pm

2 stops7h 09m

$579

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

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

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 London to Washington, D.C. Dulles Intl?

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

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

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

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

Fastest flight time

3h 45m

Direct flights

None
The fastest flight from London, Ontario to Washington, D.C. Dulles Intl Airport takes 3h 45m
There are no direct flights from London, Ontario to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from London, Ontario to Washington, D.C. Dulles Intl Airport.
  • How far is London to Washington, D.C. Dulles Intl by plane?

    Washington, D.C. Dulles Intl is 341.3 mi away from London. Flights usually cover this in 3h 45m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from London Airport to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.

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

    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. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Colonial Beach
Laurel
Towson
Gaithersburg
Silver Spring
Fredericksburg
Rockville
Tysons
Manassas
Springfield
Linthicum Heights
Bethesda
Sterling

Why use momondo?

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

Finding the right flight to Washington, D.C. from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for London to Washington, D.C. flights to just show those with flexible booking policies.

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

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

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

Of course. momondo tracks the price of London to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Fri 4/17
Fri 4/24

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