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Cheap flights from London, Ontario to Washington, D.C. from $296

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 6/18. 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

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
5:10 am - 8:52 am
YXU
-
DCA
3h 42m
1 stop
Air Canada Logo
11:00 am - 2:55 pm
DCA
-
YXU
3h 55m
1 stop
$524Air Canada
Thu, Jul 9 - Sun, Jul 12
Air Canada Logo
5:10 am - 12:00 pm
YXU
-
DCA
6h 50m
2 stops
Air Canada Logo
12:40 pm - 9:40 pm
DCA
-
YXU
9h 00m
2 stops
$549Air Canada
Thu, Jul 9 - Sun, Jul 12
Air Canada Logo
5:10 am - 12:00 pm
YXU
-
DCA
6h 50m
2 stops
Air Canada Logo
12:40 pm - 9:40 pm
DCA
-
YXU
9h 00m
2 stops
$591Air Canada
Thu, Jul 9 - Sun, Jul 12
Air Canada Logo
12:20 pm - 6:13 pm
YXU
-
DCA
5h 53m
1 stop
Air Canada Logo
6:59 am - 5:33 pm
DCA
-
YXU
10h 34m
1 stop
$641Air Canada
Fri, May 15 - Sun, May 17
United Airlines Logo
6:10 pm - 10:31 pm
YXU
-
DCA
4h 21m
1 stop
United Airlines Logo
6:59 am - 5:32 pm
DCA
-
YXU
10h 33m
1 stop
$705United Airlines
Fri, Jun 19 - Fri, Jun 26
United Airlines Logo
10:05 am - 7:17 pm
YXU
-
DCA
9h 12m
2 stops
United Airlines Logo
6:59 am - 2:57 pm
DCA
-
YXU
7h 58m
1 stop
$711United Airlines
Fri, Jun 19 - Fri, Jun 26
United Airlines Logo
6:10 pm - 10:28 pm
YXU
-
DCA
4h 18m
1 stop
United Airlines Logo
7:30 am - 5:33 pm
DCA
-
YXU
10h 03m
2 stops
$725United Airlines
Fri, May 15 - Sun, May 17
United Airlines Logo
9:30 am - 7:05 pm
YXU
-
DCA
9h 35m
2 stops
United Airlines Logo
7:30 am - 5:33 pm
DCA
-
YXU
10h 03m
2 stops
$731United Airlines
Fri, May 15 - Sun, May 17
United Airlines Logo
10:05 am - 9:09 pm
YXU
-
DCA
11h 04m
2 stops
United Airlines Logo
6:30 am - 2:57 pm
DCA
-
YXU
8h 27m
2 stops
$845United Airlines
Fri, Jun 19 - Fri, Jun 26
WestJet Logo
5:55 pm - 12:59 pm
YXU
-
DCA
19h 04m
3 stops
WestJet Logo
7:40 pm - 5:20 am
DCA
-
YXU
33h 40m
3 stops
$2,609WestJet
Fri, May 15 - Sun, May 17

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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
Jun 19
YXU6:10 pmLondon
4h 21m
1 stop
DCA10:31 pmWashington, D.C. Reagan-National
Jun 26
DCA6:59 amWashington, D.C. Reagan-National
10h 33m
1 stop
YXU5:32 pmLondon
$705
United Airlines
Jun 19
YXU10:05 amLondon
9h 12m
2 stops
DCA7:17 pmWashington, D.C. Reagan-National
Jun 26
DCA6:59 amWashington, D.C. Reagan-National
7h 58m
1 stop
YXU2:57 pmLondon
$711
United Airlines
May 15
YXU6:10 pmLondon
4h 18m
1 stop
DCA10:28 pmWashington, D.C. Reagan-National
May 17
DCA7:30 amWashington, D.C. Reagan-National
10h 03m
2 stops
YXU5:33 pmLondon
$725

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
Jul 9
YXU5:10 amLondon
3h 42m
1 stop
DCA8:52 amWashington, D.C. Reagan-National
Jul 12
DCA11:00 amWashington, D.C. Reagan-National
3h 55m
1 stop
YXU2:55 pmLondon
$524
Air Canada
Jul 9
YXU5:10 amLondon
6h 50m
2 stops
DCA12:00 pmWashington, D.C. Reagan-National
Jul 12
DCA12:40 pmWashington, D.C. Reagan-National
9h 00m
2 stops
YXU9:40 pmLondon
$549
Air Canada
Jul 9
YXU3:30 pmLondon
4h 27m
1 stop
DCA7:57 pmWashington, D.C. Reagan-National
Jul 12
DCA12:40 pmWashington, D.C. Reagan-National
9h 00m
2 stops
YXU9:40 pmLondon
$591

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 832,500 searches. Data last updated May 5, 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
Quickest round-trip

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Thu 7/9

5:10 am-8:52 am

1 stop3h 42m

Washington, D.C. Reagan-National

Sun 7/12

11:00 am-2:55 pm

1 stop3h 55m

$524

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Thu 7/9

5:10 am-12:00 pm

2 stops6h 50m

Washington, D.C. Reagan-National

Sun 7/12

12:40 pm-9:40 pm

2 stops9h 00m

$549

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Thu 7/9

5:10 am-12:00 pm

2 stops6h 50m

Washington, D.C. Reagan-National

Sun 7/12

12:40 pm-9:40 pm

2 stops9h 00m

$591

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Fri 5/15

12:20 pm-6:13 pm

1 stop5h 53m

Washington, D.C. Reagan-National

Sun 5/17

6:59 am-5:33 pm

1 stop10h 34m

$641

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Fri 6/19

6:10 pm-10:31 pm

1 stop4h 21m

Washington, D.C. Reagan-National

Fri 6/26

6:59 am-5:32 pm

1 stop10h 33m

$705

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Fri 6/19

10:05 am-7:17 pm

2 stops9h 12m

Washington, D.C. Reagan-National

Fri 6/26

6:59 am-2:57 pm

1 stop7h 58m

$711

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Fri 5/15

6:10 pm-10:28 pm

1 stop4h 18m

Washington, D.C. Reagan-National

Sun 5/17

7:30 am-5:33 pm

2 stops10h 03m

$725

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Fri 5/15

9:30 am-7:05 pm

2 stops9h 35m

Washington, D.C. Reagan-National

Sun 5/17

7:30 am-5:33 pm

2 stops10h 03m

$731

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Fri 6/19

10:05 am-9:09 pm

2 stops11h 04m

Washington, D.C. Reagan-National

Fri 6/26

6:30 am-2:57 pm

2 stops8h 27m

$845

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Fri 5/15

5:55 pm-12:59 pm

3 stops19h 04m

Washington, D.C. Reagan-National

Sun 5/17

7:40 pm-5:20 am

3 stops33h 40m

$2,609

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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

What 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 72% of people opting to fly with this airline when traveling 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

4h 18m

Direct flights

None
The fastest flight from London, Ontario to Washington, D.C. Reagan-National Airport takes 4h 18m
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

Frequently asked questions about flying from London, Ontario to Washington, D.C. Reagan-National Airport

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

    London and Washington, D.C. Reagan-National are 359.4 mi apart from one another. Flights usually cover this in 4h 18m, 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. Reagan-National Airport?

    Prices for flights from London Airport to Washington, D.C. Reagan-National Airport were last updated today.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 necessary travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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
Waldorf
Woodbridge
Laurel
Colonial Beach
Gaithersburg
Towson
Fredericksburg
Silver Spring
Rockville
Manassas
Linthicum Heights
Tysons
Bethesda
Springfield
Fairfax
College Park

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Washington, D.C.. momondo saves you time and could save you money on your trip.

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.?

Once all potential London to Washington, D.C. 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 Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from London and alert you when they change.

An easier way to manage your Washington, D.C. Reagan-National Airport trip

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