Cheap flights from London, Ontario to District of Columbia from $287

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 District of Columbia departing on 3/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from London, Ontario to District of Columbia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
5:40 pm - 10:43 pm
YXU
-
DCA
5h 03m
1 stop
Air Canada Logo
12:55 pm - 9:18 pm
DCA
-
YXU
8h 23m
2 stops
$473Air Canada
Mon, Mar 30 - Tue, Mar 31
Air Canada Logo
9:40 am - 3:34 pm
YXU
-
IAD
5h 54m
1 stop
Air Canada Logo
4:30 pm - 9:18 pm
IAD
-
YXU
4h 48m
1 stop
$473Air Canada
Mon, Mar 30 - Tue, Mar 31
Air Canada Logo
9:40 am - 7:40 pm
YXU
-
IAD
10h 00m
2 stops
Air Canada Logo
4:30 pm - 9:18 pm
IAD
-
YXU
4h 48m
1 stop
$476Air Canada
Mon, Mar 30 - Tue, Mar 31
Air Canada Logo
9:40 am - 7:40 pm
YXU
-
IAD
10h 00m
2 stops
Air Canada Logo
4:30 pm - 9:18 pm
IAD
-
YXU
4h 48m
1 stop
$477Air Canada
Mon, Mar 30 - Tue, Mar 31
Air Canada Logo
5:10 am - 8:53 am
YXU
-
DCA
3h 43m
1 stop
Air Canada Logo
9:40 am - 5:03 pm
DCA
-
YXU
7h 23m
1 stop
$510Air Canada
Mon, Mar 30 - Tue, Mar 31
Air Canada Logo
5:10 am - 8:53 am
YXU
-
DCA
3h 43m
1 stop
Air Canada Logo
9:40 am - 5:03 pm
DCA
-
YXU
7h 23m
1 stop
$511Air Canada
Mon, Mar 30 - Tue, Mar 31
Air Canada Logo
5:10 am - 12:01 pm
YXU
-
DCA
6h 51m
2 stops
Air Canada Logo
12:55 pm - 9:18 pm
DCA
-
YXU
8h 23m
2 stops
$524Air Canada
Mon, Mar 30 - Tue, Mar 31
Air Canada Logo
9:40 am - 3:34 pm
YXU
-
IAD
5h 54m
1 stop
Air Canada Logo
4:30 pm - 9:18 pm
IAD
-
YXU
4h 48m
1 stop
$524Air Canada
Mon, Mar 30 - Tue, Mar 31
Air Canada Logo
9:40 am - 7:40 pm
YXU
-
IAD
10h 00m
2 stops
Air Canada Logo
4:30 pm - 9:18 pm
IAD
-
YXU
4h 48m
1 stop
$527Air Canada
Mon, Mar 30 - Tue, Mar 31
Air Canada Logo
9:40 am - 7:40 pm
YXU
-
IAD
10h 00m
2 stops
Air Canada Logo
9:55 am - 5:03 pm
IAD
-
YXU
7h 08m
2 stops
$534Air Canada
Mon, Mar 30 - Tue, Mar 31

Air Canada flights from London, Ontario to District of Columbia

Our best Air Canada deals on London, Ontario to District of Columbia flight tickets
Air Canada
Mar 30
YXU9:40 amLondon
5h 54m
1 stop
IAD3:34 pmWashington, D.C. Dulles Intl
Mar 31
IAD4:30 pmWashington, D.C. Dulles Intl
4h 48m
1 stop
YXU9:18 pmLondon
$473
Air Canada
Mar 30
YXU9:40 amLondon
10h 00m
2 stops
IAD7:40 pmWashington, D.C. Dulles Intl
Mar 31
IAD4:30 pmWashington, D.C. Dulles Intl
4h 48m
1 stop
YXU9:18 pmLondon
$476
Air Canada
Mar 30
YXU9:40 amLondon
10h 00m
2 stops
IAD7:40 pmWashington, D.C. Dulles Intl
Mar 31
IAD4:30 pmWashington, D.C. Dulles Intl
4h 48m
1 stop
YXU9:18 pmLondon
$477

momondo Fare Finder

 
Customize your flight search to find flights from London, Ontario to District of Columbia 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 February 4, 2026.
Use the filters below to find and compare flights from London, Ontario to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Mon 3/30

5:40 pm-10:43 pm

1 stop5h 03m

Washington, D.C. Reagan-National

Tue 3/31

12:55 pm-9:18 pm

2 stops8h 23m

$473

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Mon 3/30

9:40 am-3:34 pm

1 stop5h 54m

Washington, D.C. Dulles Intl

Tue 3/31

4:30 pm-9:18 pm

1 stop4h 48m

$473

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Mon 3/30

9:40 am-7:40 pm

2 stops10h 00m

Washington, D.C. Dulles Intl

Tue 3/31

4:30 pm-9:18 pm

1 stop4h 48m

$476

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Mon 3/30

9:40 am-7:40 pm

2 stops10h 00m

Washington, D.C. Dulles Intl

Tue 3/31

4:30 pm-9:18 pm

1 stop4h 48m

$477

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Mon 3/30

5:10 am-8:53 am

1 stop3h 43m

Washington, D.C. Reagan-National

Tue 3/31

9:40 am-5:03 pm

1 stop7h 23m

$510

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Mon 3/30

5:10 am-8:53 am

1 stop3h 43m

Washington, D.C. Reagan-National

Tue 3/31

9:40 am-5:03 pm

1 stop7h 23m

$511

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Mon 3/30

5:10 am-12:01 pm

2 stops6h 51m

Washington, D.C. Reagan-National

Tue 3/31

12:55 pm-9:18 pm

2 stops8h 23m

$524

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Mon 3/30

9:40 am-3:34 pm

1 stop5h 54m

Washington, D.C. Dulles Intl

Tue 3/31

4:30 pm-9:18 pm

1 stop4h 48m

$524

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Mon 3/30

9:40 am-7:40 pm

2 stops10h 00m

Washington, D.C. Dulles Intl

Tue 3/31

4:30 pm-9:18 pm

1 stop4h 48m

$527

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Mon 3/30

9:40 am-7:40 pm

2 stops10h 00m

Washington, D.C. Dulles Intl

Tue 3/31

9:55 am-5:03 pm

2 stops7h 08m

$534

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to District of Columbia from

How to get the cheapest flight ticket from London, Ontario to District of Columbia

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 District of Columbia?

Air Canada and United Airlines are the most popular carriers operating from London to District of Columbia

What airlines fly to District of Columbia?

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to District of Columbia from London, Ontario according to our data. Air Canada is the first choice among our users, with 71% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 5 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

Cheap London, Ontario to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London, Ontario to District of Columbia

Fastest flight time

4h 18m

Direct flights

None
The fastest flight from London, Ontario to District of Columbia takes 4h 18m
There are no direct flights from London, Ontario to District of Columbia. There are no popular flight routes from London, Ontario to District of Columbia.
  • When did momondo last update prices for flights from London Airport to District of Columbia?

    Prices for flights from London Airport to District of Columbia were last updated today.

  • How old do you have to be to fly from London Airport to District of Columbia?

    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 London Airport to District of Columbia.

  • What documentation or ID do you need to fly to District of Columbia?

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

Why use momondo?

Why should I use momondo to find a flight deal from London to District of Columbia?

Finding the right flight to District of Columbia 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 District of Columbia quick and easy, saving you time and money.

Can I find flights from London to District of Columbia with flexible booking policies on momondo?

momondo does allow users to show only those flights to District of Columbia from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to District of Columbia?

Once all potential London to District of Columbia 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 London to District of Columbia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to District of Columbia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to District of Columbia and let you know when they change.

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1 adult
Fri 3/6
Fri 3/13

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