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Cheap flights from London, Ontario to Washington, D.C. from C$ 391

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 2/5. 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
1 adult, Economy, 0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
5:40 p.m. - 10:43 p.m.
YXU
-
DCA
5h 03m
1 stop
Air Canada Logo
6:59 a.m. - 11:43 a.m.
DCA
-
YXU
4h 44m
1 stop
C$ 720Air Canada
Thu, 30 Apr - Mon, 4 May
Air Canada Logo
5:40 a.m. - 12:01 p.m.
YXU
-
DCA
6h 21m
2 stops
Air Canada Logo
6:59 a.m. - 11:43 a.m.
DCA
-
YXU
4h 44m
1 stop
C$ 722Air Canada
Sun, 3 May - Wed, 6 May
Air Canada Logo
5:40 a.m. - 12:01 p.m.
YXU
-
DCA
6h 21m
2 stops
Air Canada Logo
9:40 a.m. - 5:33 p.m.
DCA
-
YXU
7h 53m
2 stops
C$ 726Air Canada
Sun, 3 May - Wed, 6 May
Air Canada Logo
12:20 p.m. - 6:13 p.m.
YXU
-
DCA
5h 53m
1 stop
Air Canada Logo
6:59 a.m. - 11:43 a.m.
DCA
-
YXU
4h 44m
1 stop
C$ 755Air Canada
Sun, 3 May - Wed, 6 May
Air Canada Logo
9:25 a.m. - 9:55 p.m.
YXU
-
DCA
12h 30m
2 stops
Air Canada Logo
12:45 p.m. - 9:38 p.m.
DCA
-
YXU
8h 53m
2 stops
C$ 784Air Canada
Thu, 30 Apr - Mon, 4 May
Air Canada Logo
5:10 a.m. - 12:01 p.m.
YXU
-
DCA
6h 51m
2 stops
Air Canada Logo
11:00 a.m. - 9:19 p.m.
DCA
-
YXU
10h 19m
2 stops
C$ 792Air Canada
Fri, 10 Apr - Sat, 11 Apr
United Airlines Logo
6:10 p.m. - 10:28 p.m.
YXU
-
DCA
4h 18m
1 stop
United Airlines Logo
6:59 a.m. - 11:43 a.m.
DCA
-
YXU
4h 44m
1 stop
C$ 816United Airlines
Sat, 2 May - Sat, 9 May
United Airlines Logo
6:10 p.m. - 10:28 p.m.
YXU
-
DCA
4h 18m
1 stop
United Airlines Logo
6:59 a.m. - 11:43 a.m.
DCA
-
YXU
4h 44m
1 stop
C$ 818United Airlines
Fri, 1 May - Fri, 8 May
Air Canada Logo
5:10 a.m. - 8:53 a.m.
YXU
-
DCA
3h 43m
1 stop
Air Canada Logo
6:50 p.m. - 8:44 a.m.
DCA
-
YXU
13h 54m
1 stop
C$ 837Air Canada
Fri, 10 Apr - Sat, 11 Apr
Air Canada Logo
5:40 p.m. - 10:43 p.m.
YXU
-
DCA
5h 03m
1 stop
Air Canada Logo
6:59 a.m. - 9:19 p.m.
DCA
-
YXU
14h 20m
1 stop
C$ 838Air Canada
Fri, 10 Apr - Sat, 11 Apr

Air Canada flights from London, Ontario to Washington, D.C. Reagan-National Airport

Our best Air Canada deals on London, Ontario to Washington, D.C. Reagan-National Airport flight tickets
Air Canada
30 Apr
YXU5:40 p.m.London
5h 03m
1 stop
DCA10:43 p.m.Washington, D.C. Reagan-National
4 May
DCA6:59 a.m.Washington, D.C. Reagan-National
4h 44m
1 stop
YXU11:43 a.m.London
C$ 720
Air Canada
3 May
YXU5:40 a.m.London
6h 21m
2 stops
DCA12:01 p.m.Washington, D.C. Reagan-National
6 May
DCA6:59 a.m.Washington, D.C. Reagan-National
4h 44m
1 stop
YXU11:43 a.m.London
C$ 722
Air Canada
3 May
YXU5:40 a.m.London
6h 21m
2 stops
DCA12:01 p.m.Washington, D.C. Reagan-National
6 May
DCA9:40 a.m.Washington, D.C. Reagan-National
7h 53m
2 stops
YXU5:33 p.m.London
C$ 726

United Airlines flights from London, Ontario to Washington, D.C. Reagan-National Airport

Our best United Airlines deals on London, Ontario to Washington, D.C. Reagan-National Airport flight tickets
United Airlines
2 May
YXU6:10 p.m.London
4h 18m
1 stop
DCA10:28 p.m.Washington, D.C. Reagan-National
9 May
DCA6:59 a.m.Washington, D.C. Reagan-National
4h 44m
1 stop
YXU11:43 a.m.London
C$ 816
United Airlines
1 May
YXU6:10 p.m.London
4h 18m
1 stop
DCA10:28 p.m.Washington, D.C. Reagan-National
8 May
DCA6:59 a.m.Washington, D.C. Reagan-National
4h 44m
1 stop
YXU11:43 a.m.London
C$ 818

momondo Fare Finder

 
Customize your flight search to find flights from London, Ontario to Washington, D.C. Reagan-National 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 96,600 searches. Data last updated 21 March 2026.
Use the filters below to find and compare flights from London, Ontario to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Thu 30/4

5:40 p.m.-10:43 p.m.

1 stop5h 03m

Washington, D.C. Reagan-National

Mon 4/5

6:59 a.m.-11:43 a.m.

1 stop4h 44m

C$ 720

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sun 3/5

5:40 a.m.-12:01 p.m.

2 stops6h 21m

Washington, D.C. Reagan-National

Wed 6/5

6:59 a.m.-11:43 a.m.

1 stop4h 44m

C$ 722

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sun 3/5

5:40 a.m.-12:01 p.m.

2 stops6h 21m

Washington, D.C. Reagan-National

Wed 6/5

9:40 a.m.-5:33 p.m.

2 stops7h 53m

C$ 726

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sun 3/5

12:20 p.m.-6:13 p.m.

1 stop5h 53m

Washington, D.C. Reagan-National

Wed 6/5

6:59 a.m.-11:43 a.m.

1 stop4h 44m

C$ 755

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Thu 30/4

9:25 a.m.-9:55 p.m.

2 stops12h 30m

Washington, D.C. Reagan-National

Mon 4/5

12:45 p.m.-9:38 p.m.

2 stops8h 53m

C$ 784

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Fri 10/4

5:10 a.m.-12:01 p.m.

2 stops6h 51m

Washington, D.C. Reagan-National

Sat 11/4

11:00 a.m.-9:19 p.m.

2 stops10h 19m

C$ 792
Quickest round-trip

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sat 2/5

6:10 p.m.-10:28 p.m.

1 stop4h 18m

Washington, D.C. Reagan-National

Sat 9/5

6:59 a.m.-11:43 a.m.

1 stop4h 44m

C$ 816

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Fri 1/5

6:10 p.m.-10:28 p.m.

1 stop4h 18m

Washington, D.C. Reagan-National

Fri 8/5

6:59 a.m.-11:43 a.m.

1 stop4h 44m

C$ 818

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Fri 10/4

5:10 a.m.-8:53 a.m.

1 stop3h 43m

Washington, D.C. Reagan-National

Sat 11/4

6:50 p.m.-8:44 a.m.

1 stop13h 54m

C$ 837

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Fri 10/4

5:40 p.m.-10:43 p.m.

1 stop5h 03m

Washington, D.C. Reagan-National

Sat 11/4

6:59 a.m.-9:19 p.m.

1 stop14h 20m

C$ 838

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest 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. Reagan-National 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. Reagan-National?

Air Canada and United Airlines are the most popular carriers operating from London to Washington, D.C. Reagan-National

Which airlines fly to Washington, D.C. Reagan-National Airport?

Air Canada, American Airlines and United Airlines are the top three most popular airlines that fly to Washington, D.C. Reagan-National Airport from London, Ontario according to our data. Air Canada is the first choice among our users, with 80% of people opting to fly with this airline when travelling to Washington, D.C. Reagan-National Airport. Keep in mind that there are 4 different airlines that fly to Washington, D.C. Reagan-National Airport on a routine basis, so you have a few additional options to choose from.

When to book flights from London, Ontario to Washington, D.C. Reagan-National Airport

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

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

Fastest flight time

5h 03m

Direct flights

None
The fastest flight from London, Ontario to Washington, D.C. Reagan-National Airport takes 5h 03m
There are no direct flights from London, Ontario to Washington, D.C. Reagan-National Airport. There are no popular flight routes from London, Ontario to Washington, D.C. Reagan-National Airport.
Search flight deals

  • How far is London to Washington, D.C. Reagan-National by plane?

    A flight from London to Washington, D.C. Reagan-National will travel around 578.5 km. A reasonable flight in good conditions will take 5h 03m.

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

    Prices for flights from London Airport to Washington, D.C. Reagan-National Airport are updated daily.

  • How old do you have to be to fly from London Airport to Washington, D.C. Reagan-National 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 London Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The travel and health documents required for your trip to Washington, D.C. Reagan-National 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 Washington, D.C. Reagan-National Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
Gaithersburg
Fairfax
Linthicum Heights
Bethesda
National Harbor
Reston
Laurel
Herndon
Arlington
Fredericksburg
Manassas
Woodbridge
Silver Spring
Rockville
McLean
Tysons

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 recognizable 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?

momondo does allow users to show only those flights to Washington, D.C. 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 Washington, D.C.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Washington, D.C..

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

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

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