How long is the flight from Washington, D.C. to London, Ontario?

A quick flight from Washington, D.C. to London, Ontario can take about 4h 55m. Air Canada provides one of the quickest options available for as low as $660. Washington, D.C. and London, Ontario are separated by a distance of 341 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

In terms of precipitation, rainfall in London, Ontario ranges from 2.8 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. March is typically the driest time to visit London, Ontario when rainfall is around 2.8 in.

If weather is an important factor for your trip to London, Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

What are the most popular routes from Washington, D.C. to London, Ontario?

The most popular route from Washington, D.C. to London, Ontario is Washington, D.C. Reagan-National - London. You may also consider Washington, D.C. Dulles Intl - London or Baltimore/Washington - London.

What is the cheapest time of day to fly from WAS to YXU?

When flying from Washington, D.C. to London, Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to London from Washington, D.C.?

London (YXU), located 5.3 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. to London. 0 airlines have flights to London from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to London should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. per day.

Can I find deals for flights from Washington, D.C. to London that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to London flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to London.

Can I find deals for business class flights from Washington, D.C. to London?

Yes. Cheapflights offers flight deals from Washington, D.C. to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$259+ Cheap Flights from Washington, D.C. to London, ON

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Cheap flight deals from Washington, D.C. to London

Cheapest

Best

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One-way

Cheapest flights from Washington, D.C. to London
Explore the most affordable flight options available from Washington, D.C. to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.

Tue 10/611:00 am -

1 stop3h 50m

Sat 10/106:20 pm -

1 stop4h 14m

Deal found 9/15

$660

Tue 10/69:55 am -

1 stop4h 55m

Sat 10/103:30 pm -

1 stop4h 55m

Deal found 9/15

$660

Sat 10/1012:50 pm -

2 stops6h 50m

Tue 10/133:30 pm -

1 stop4h 29m

Deal found 9/13

$666

Tue 9/291:10 pm -

2 stops8h 30m

Fri 10/93:30 pm -

1 stop4h 55m

Deal found 9/14

$757

Tue 10/133:15 pm -

3 stops38h 05m

Sun 10/186:10 am -

3 stops28h 48m

Deal found 9/16

$766

Tue 9/298:20 am -

2 stops13h 20m

Fri 10/98:20 pm -

2 stops11h 23m

Deal found 9/14

$817

Sat 10/319:40 am -

1 stop5h 07m

Sat 11/75:30 am -

2 stops6h 49m

Deal found 9/15

$822

Tue 10/136:00 am -

3 stops23h 20m

Sun 10/186:10 am -

3 stops28h 35m

Deal found 9/16

$830

Sat 10/108:15 am -

2 stops6h 35m

Tue 10/133:30 pm -

1 stop4h 55m

Deal found 9/13

$840

Thu 11/54:30 pm -

1 stop5h 27m

Mon 11/93:25 pm -

1 stop6h 01m

Deal found 9/16

$841

Sat 10/319:55 am -

1 stop4h 52m

Sat 11/79:15 am -

1 stop10h 55m

Deal found 9/15

$842

Mon 11/29:12 pm -

3 stops32h 23m

Thu 11/56:40 am -

3 stops34h 04m

Deal found 9/16

$857

Best flights from Washington, D.C. to London
Discover carefully curated flight deals from Washington, D.C. to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.

Tue 10/69:55 am -

1 stop4h 55m

Sat 10/103:30 pm -

1 stop4h 55m

Deal found 9/15

$660

Tue 9/298:20 am -

2 stops13h 20m

Fri 10/98:20 pm -

2 stops11h 23m

Deal found 9/14

$817

Sat 10/179:09 am -

2 stops12h 31m

Wed 10/219:05 am -

2 stops11h 57m

Deal found 9/13

$920

Sat 10/1012:50 pm -

2 stops6h 50m

Tue 10/133:30 pm -

1 stop4h 29m

Deal found 9/13

$666

Tue 10/69:40 am -

2 stops8h 03m

Sat 10/106:20 pm -

1 stop4h 14m

Deal found 9/15

$669

Tue 9/295:17 pm -

1 stop4h 23m

Fri 10/93:30 pm -

1 stop4h 55m

Deal found 9/14

$757

Sat 10/1011:55 am -

2 stops9h 45m

Tue 10/133:30 pm -

2 stops19h 00m

Deal found 9/13

$920

Tue 10/1311:00 am -

1 stop3h 50m

Sun 10/183:30 pm -

2 stops6h 20m

Deal found 9/16

$941

Sat 10/319:40 am -

1 stop5h 07m

Sat 11/75:30 am -

2 stops6h 49m

Deal found 9/15

$822

Mon 11/26:10 am -

2 stops13h 42m

Thu 11/55:30 am -

2 stops16h 12m

Deal found 9/16

$997

Tue 10/1311:55 am -

2 stops17h 25m

Sun 10/185:55 pm -

2 stops16h 59m

Deal found 9/16

$2,198

Sun 11/110:10 am -

2 stops9h 42m

Sun 11/89:15 am -

2 stops9h 54m

Deal found 9/17

$997

Sat 10/319:55 am -

1 stop4h 52m

Sat 11/79:15 am -

1 stop10h 55m

Deal found 9/15

$842

Fri 10/306:10 am -

2 stops13h 42m

Fri 11/65:30 am -

2 stops16h 12m

Deal found 9/15

$1,019

Sat 10/319:52 pm -

3 stops32h 43m

Sat 11/76:40 am -

3 stops28h 12m

Deal found 9/16

$1,239

Fri 11/612:55 pm -

2 stops9h 02m

Mon 11/95:30 am -

2 stops6h 49m

Deal found 9/16

$866

Last-minute flights from Washington, D.C. to London
Discover last-minute flight deals from Washington, D.C. to London. Data last updated September 18, 2026 and is based on user searches.

Tue 9/291:10 pm -

2 stops8h 30m

Fri 10/93:30 pm -

1 stop4h 55m

Deal found 9/14

$757

Tue 9/298:20 am -

2 stops13h 20m

Fri 10/98:20 pm -

2 stops11h 23m

Deal found 9/14

$817

Tue 10/611:00 am -

1 stop3h 50m

Sat 10/106:20 pm -

1 stop4h 14m

Deal found 9/15

$660

Tue 10/69:55 am -

1 stop4h 55m

Sat 10/103:30 pm -

1 stop4h 55m

Deal found 9/15

$660

Sat 10/1012:50 pm -

2 stops6h 50m

Tue 10/133:30 pm -

1 stop4h 29m

Deal found 9/13

$666

Sat 10/108:15 am -

2 stops6h 35m

Tue 10/133:30 pm -

1 stop4h 55m

Deal found 9/13

$840

Tue 10/133:15 pm -

3 stops38h 05m

Sun 10/186:10 am -

3 stops28h 48m

Deal found 9/16

$766

Tue 10/136:00 am -

3 stops23h 20m

Sun 10/186:10 am -

3 stops28h 35m

Deal found 9/16

$830

Sat 10/179:09 am -

2 stops12h 31m

Wed 10/219:05 am -

2 stops11h 57m

Deal found 9/15

$920

Fri 10/306:10 am -

2 stops13h 42m

Fri 11/65:30 am -

2 stops16h 12m

Deal found 9/15

$1,019

Sat 10/319:40 am -

1 stop5h 07m

Sat 11/75:30 am -

2 stops6h 49m

Deal found 9/15

$822

Sat 10/319:55 am -

1 stop4h 52m

Sat 11/79:15 am -

1 stop10h 55m

Deal found 9/15

$842

One-way flights from Washington, D.C. to London
Search for one-way flight options from Washington, D.C. to London. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.

Wed 10/2810:45 am -

2 stops19h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/13

$259

Fri 10/1612:50 pm -

2 stops6h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$394

Mon 10/194:00 pm -

1 stop3h 40m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$394

Sat 10/179:40 am -

2 stops8h 03m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$397

Mon 10/196:45 am -

2 stops14h 55m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$476

Sun 11/110:10 am -

2 stops22h 27m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/17

$510

Wed 10/2111:00 am -

1 stop8h 40m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$615

Sun 10/181:25 pm -

3 stops15h 55m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$1,194

Find flight deals from Washington, D.C. to London

Round-trip from	$660 (Air Canada)
One-way from	$259 (Kiwi.com)

From Washington, D.C. (WAS) to London

Search Deals

One-way flight from Washington, D.C. (WAS) to London

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreLondon

BWI Baltimore/Washington - YXU London

BWIYXU

Baltimore/Washington

Wed 10/28

10:45 am-6:35 am

2 stops19h 50m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$259

Washington, D.C.London

DCA Washington, D.C. Reagan-National - YXU London

DCAYXU

Washington, D.C. Reagan-National

Fri 10/16

11:00 am-2:50 pm

1 stop3h 50m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$394

Washington, D.C.London

DCA Washington, D.C. Reagan-National - YXU London

DCAYXU

Washington, D.C. Reagan-National

Sun 10/18

11:00 am-2:50 pm

1 stop3h 50m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$394

Washington, D.C.London

DCA Washington, D.C. Reagan-National - YXU London

DCAYXU

Washington, D.C. Reagan-National

Mon 10/19

12:50 pm-7:40 pm

2 stops6h 50m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$394

Washington, D.C.London

DCA Washington, D.C. Reagan-National - YXU London

DCAYXU

Washington, D.C. Reagan-National

Thu 10/22

11:00 am-2:50 pm

1 stop3h 50m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$394

Washington, D.C.London

DCA Washington, D.C. Reagan-National - YXU London

DCAYXU

Washington, D.C. Reagan-National

Tue 10/20

11:00 am-2:50 pm

1 stop3h 50m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$394

Quickest round-trip

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Mon 10/19

4:00 pm-7:40 pm

1 stop3h 40m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$394

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Mon 10/19

6:45 am-9:40 pm

2 stops14h 55m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$476

BaltimoreLondon

BWI Baltimore/Washington - YXU London

BWIYXU

Baltimore/Washington

Sun 11/1

10:10 am-8:37 am

2 stops22h 27m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$510

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Tue 10/6

9:55 am-2:50 pm

1 stop4h 55m

London

Sat 10/10

3:30 pm-8:25 pm

1 stop4h 55m

$660

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 25 resultsSorted by cheapest first

Best time to book a flight from Washington, D.C. to London

Have a flexible travel schedule? Discover the best time to fly to London from Washington, D.C. with our price prediction graph.

WAS-YXU

DCA-YXU

IAD-YXU

BWI-YXU

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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Everything you need to know about your flight from Washington, D.C. to London

WAS-YXU

DCA-YXU

IAD-YXU

BWI-YXU

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to London from Washington, D.C.?
London (YXU), located 5.3 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. to London. 0 airlines have flights to London from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to London should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. per day.
How long is the flight from Washington, D.C. to London, Ontario?
A quick flight from Washington, D.C. to London, Ontario can take about 4h 55m. Air Canada provides one of the quickest options available for as low as $660. Washington, D.C. and London, Ontario are separated by a distance of 341 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the most popular routes from Washington, D.C. to London, Ontario?
The most popular route from Washington, D.C. to London, Ontario is Washington, D.C. Reagan-National - London. You may also consider Washington, D.C. Dulles Intl - London or Baltimore/Washington - London.
Can I find deals for flights from Washington, D.C. to London that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to London flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to London.
Can I find deals for business class flights from Washington, D.C. to London?
Yes. Cheapflights offers flight deals from Washington, D.C. to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$259+ Cheap flights from Washington, D.C. (WAS) to London, ON (YXU)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/28. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from Washington, D.C. to LondonExplore the most affordable flight options available from Washington, D.C. to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.

Explore the most affordable flight options available from Washington, D.C. to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.

Best flights from Washington, D.C. to LondonDiscover carefully curated flight deals from Washington, D.C. to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.

Discover carefully curated flight deals from Washington, D.C. to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.

Last-minute flights from Washington, D.C. to LondonDiscover last-minute flight deals from Washington, D.C. to London. Data last updated September 18, 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to London. Data last updated September 18, 2026 and is based on user searches.

One-way flights from Washington, D.C. to LondonSearch for one-way flight options from Washington, D.C. to London. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.

Search for one-way flight options from Washington, D.C. to London. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.

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Related info for your journey

What airport do you fly into for flights to London from Washington, D.C.?

How long is the flight from Washington, D.C. to London, Ontario?

What are the most popular routes from Washington, D.C. to London, Ontario?

Can I find deals for flights from Washington, D.C. to London that include hotel bookings?

How can I find direct flights from Washington, D.C. to London?

Can I find deals for business class flights from Washington, D.C. to London?

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Washington, D.C. and London flights

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Cheapest flights from Washington, D.C. to London
Explore the most affordable flight options available from Washington, D.C. to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.

Best flights from Washington, D.C. to London
Discover carefully curated flight deals from Washington, D.C. to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.

Last-minute flights from Washington, D.C. to London
Discover last-minute flight deals from Washington, D.C. to London. Data last updated September 18, 2026 and is based on user searches.

One-way flights from Washington, D.C. to London
Search for one-way flight options from Washington, D.C. to London. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.