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Cheap flights from London, Ontario to Washington, D.C. from C$ 473

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 16/9. 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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Find the cheapest flights from London, Ontario to Washington, D.C.

Cheap round-trip flights

Logo
8:00 p.m. - 12:08 p.m.YXU-DCA
16h 08m3 stops
Logo
6:00 a.m. - 5:12 a.m.DCA-YXU
23h 12m3 stops
C$ 590
Find Deal
Mon, 22 Sep - Mon, 29 Sep
Logo
6:00 a.m. - 8:59 a.m.YXU-DCA
26h 59m2 stops
Logo
6:00 a.m. - 5:12 a.m.DCA-YXU
23h 12m3 stops
C$ 607
Find Deal
Mon, 22 Sep - Mon, 29 Sep
Logo
6:00 a.m. - 8:59 a.m.YXU-DCA
26h 59m2 stops
Logo
6:59 a.m. - 5:12 a.m.DCA-YXU
22h 13m2 stops
C$ 640
Find Deal
Mon, 22 Sep - Mon, 29 Sep
Logo
6:00 a.m. - 8:59 a.m.YXU-DCA
26h 59m2 stops
Logo
8:40 p.m. - 9:19 a.m.DCA-YXU
12h 39m1 stop
C$ 820
Find Deal
Mon, 22 Sep - Mon, 29 Sep
Air Canada Logo
3:50 p.m. - 7:44 p.m.YXU-DCA
3h 54m1 stop
Air Canada Logo
11:00 a.m. - 3:17 p.m.DCA-YXU
4h 17m1 stop
C$ 863Air Canada
Find Deal
Mon, 22 Sep - Mon, 29 Sep
Air Canada Logo
5:40 p.m. - 10:35 p.m.YXU-DCA
4h 55m1 stop
Air Canada Logo
9:20 p.m. - 8:46 a.m.DCA-YXU
11h 26m1 stop
C$ 1,008Air Canada
Find Deal
Sun, 16 Nov - Sun, 23 Nov
United Airlines Logo
5:40 p.m. - 10:35 p.m.YXU-DCA
4h 55m1 stop
United Airlines Logo
7:30 a.m. - 5:06 p.m.DCA-YXU
9h 36m2 stops
C$ 1,070United Airlines
Find Deal
Sun, 16 Nov - Sun, 23 Nov
United Airlines Logo
5:45 a.m. - 3:20 p.m.YXU-DCA
9h 35m2 stops
United Airlines Logo
7:00 a.m. - 5:06 p.m.DCA-YXU
10h 06m2 stops
C$ 1,077United Airlines
Find Deal
Sun, 16 Nov - Sun, 23 Nov

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
16 Nov
YXU5:40 p.m.London
4h 55m
1 stop
DCA10:35 p.m.Washington, D.C. Reagan-National
23 Nov
DCA7:30 a.m.Washington, D.C. Reagan-National
9h 36m
2 stops
YXU5:06 p.m.London
C$ 1,070
Find similar
United Airlines
16 Nov
YXU5:45 a.m.London
9h 35m
2 stops
DCA3:20 p.m.Washington, D.C. Reagan-National
23 Nov
DCA7:00 a.m.Washington, D.C. Reagan-National
10h 06m
2 stops
YXU5:06 p.m.London
C$ 1,077
Find similar

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
22 Sep
YXU3:50 p.m.London
3h 54m
1 stop
DCA7:44 p.m.Washington, D.C. Reagan-National
29 Sep
DCA11:00 a.m.Washington, D.C. Reagan-National
4h 17m
1 stop
YXU3:17 p.m.London
C$ 863
Find similar
Air Canada
16 Nov
YXU5:40 p.m.London
4h 55m
1 stop
DCA10:35 p.m.Washington, D.C. Reagan-National
23 Nov
DCA9:20 p.m.Washington, D.C. Reagan-National
11h 26m
1 stop
YXU8:46 a.m.London
C$ 1,008
Find similar
Air Canada
7 Aug
YXU6:15 a.m.London
9h 33m
2 stops
DCA3:48 p.m.Washington, D.C. Reagan-National
17 Aug
DCA12:55 p.m.Washington, D.C. Reagan-National
8h 32m
2 stops
YXU9:27 p.m.London
C$ 1,191
Find similar

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 2 August 2025.
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

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Mon 22/9

8:00 p.m.-12:08 p.m.

3 stops16h 08m

Washington, D.C. Reagan-National

Mon 29/9

6:00 a.m.-5:12 a.m.

3 stops23h 12m

C$ 590

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Mon 22/9

6:00 a.m.-8:59 a.m.

2 stops26h 59m

Washington, D.C. Reagan-National

Mon 29/9

6:00 a.m.-5:12 a.m.

3 stops23h 12m

C$ 607

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Mon 22/9

6:00 a.m.-8:59 a.m.

2 stops26h 59m

Washington, D.C. Reagan-National

Mon 29/9

6:59 a.m.-5:12 a.m.

2 stops22h 13m

C$ 640

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Mon 22/9

6:00 a.m.-8:59 a.m.

2 stops26h 59m

Washington, D.C. Reagan-National

Mon 29/9

8:40 p.m.-9:19 a.m.

1 stop12h 39m

C$ 820

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Mon 22/9

3:50 p.m.-7:44 p.m.

1 stop3h 54m

Washington, D.C. Reagan-National

Mon 29/9

11:00 a.m.-3:17 p.m.

1 stop4h 17m

C$ 863

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sun 16/11

5:40 p.m.-10:35 p.m.

1 stop4h 55m

Washington, D.C. Reagan-National

Sun 23/11

9:20 p.m.-8:46 a.m.

1 stop11h 26m

C$ 1,008

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sun 16/11

5:40 p.m.-10:35 p.m.

1 stop4h 55m

Washington, D.C. Reagan-National

Sun 23/11

7:30 a.m.-5:06 p.m.

2 stops9h 36m

C$ 1,070

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sun 16/11

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

2 stops9h 35m

Washington, D.C. Reagan-National

Sun 23/11

7:00 a.m.-5:06 p.m.

2 stops10h 06m

C$ 1,077

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Tue 16/9

3:50 p.m.-7:44 p.m.

1 stop3h 54m

C$ 473

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Wed 10/9

3:50 p.m.-7:44 p.m.

1 stop3h 54m

C$ 485

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. 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 day to depart on your flight to Washington, D.C. Reagan-National Airport?

On average, the least expensive day to fly to Washington, D.C. Reagan-National Airport from London, Ontario is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as C$ 561. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from London, Ontario to Washington, D.C. Reagan-National Airport for around C$ 665.

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

Best price found

C$ 473

Fastest flight time

3h 54m

Direct flights

None
The best one-way flight to Washington, D.C. Reagan-National Airport from London, Ontario in the past 72 hours is C$ 473. The best round-trip flight deal from London, Ontario to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is C$ 590.
The fastest flight from London, Ontario to Washington, D.C. Reagan-National Airport takes 3h 54m
There are no direct flights from London, Ontario to Washington, D.C. Reagan-National Airport. Popular non-direct route for this connection is London Airport - 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 3h 54m.

  • 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
Herndon
Linthicum Heights
Bethesda
Alexandria
Silver Spring
Reston
Laurel
Pikesville
Fairfax
Capitol Heights
Arlington
Gettysburg
Manassas
Fredericksburg
Woodbridge
Rockville
McLean
National Harbor
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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