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 6h 22m. Air Canada provides one of the quickest options available for as low as $644. 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 Baltimore/Washington - London or Washington, D.C. Dulles Intl - 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.

$270+ Cheap Flights from Washington, D.C. to London, ON

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

Cheapest

Best

Last-minute

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 August 21, 2026.

Tue 9/158:28 am -

1 stop6h 22m

Fri 9/185:40 am -

2 stops9h 20m

Deal found 8/17

$636

Mon 8/3111:00 am -

1 stop3h 50m

Thu 9/36:20 pm -

1 stop4h 11m

Deal found 8/17

$660

Thu 11/129:40 am -

1 stop5h 07m

Sun 11/153:25 pm -

1 stop4h 33m

Deal found 8/17

$750

Thu 11/129:55 am -

1 stop4h 52m

Sun 11/153:25 pm -

1 stop4h 45m

Deal found 8/17

$750

Sun 10/412:40 pm -

3 stops40h 40m

Sun 10/115:55 pm -

3 stops21h 15m

Deal found 8/20

$771

Sun 10/411:45 am -

2 stops17h 35m

Sun 10/116:10 am -

3 stops29h 11m

Deal found 8/19

$819

Thu 10/2211:00 am -

1 stop3h 55m

Fri 10/233:30 pm -

1 stop4h 30m

Deal found 8/16

$864

Thu 10/19:09 am -

2 stops12h 31m

Mon 10/55:40 am -

2 stops15h 22m

Deal found 8/16

$997

Tue 9/1512:10 pm -

2 stops9h 30m

Fri 9/1810:05 am -

2 stops12h 54m

Deal found 8/17

$1,040

Mon 9/148:25 am -

2 stops13h 15m

Thu 9/175:40 am -

2 stops8h 18m

Deal found 8/21

$1,095

Thu 10/112:10 pm -

2 stops9h 30m

Thu 10/810:05 am -

2 stops10h 57m

Deal found 8/17

$1,352

Sat 8/221:00 pm -

2 stops8h 40m

Mon 8/245:40 am -

2 stops13h 02m

Deal found 8/18

$1,449

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 August 21, 2026.

Tue 9/158:28 am -

1 stop6h 22m

Fri 9/185:40 am -

2 stops9h 20m

Deal found 8/19

$644

Sun 10/412:40 pm -

3 stops40h 40m

Sun 10/115:55 pm -

3 stops21h 15m

Deal found 8/20

$771

Thu 10/110:40 pm -

2 stops16h 15m

Thu 10/810:05 am -

1 stop4h 17m

Deal found 8/17

$992

Mon 8/3111:00 am -

1 stop3h 50m

Thu 9/36:20 pm -

1 stop4h 11m

Deal found 8/17

$660

Sun 10/411:45 am -

2 stops17h 35m

Sun 10/116:10 am -

3 stops29h 11m

Deal found 8/19

$819

Thu 10/111:00 am -

1 stop3h 55m

Thu 10/86:20 pm -

1 stop4h 14m

Deal found 8/17

$864

Sun 10/46:25 am -

2 stops15h 15m

Sun 10/115:40 am -

2 stops17h 19m

Deal found 8/20

$997

Fri 10/211:25 am -

3 stops17h 55m

Fri 10/96:10 am -

3 stops28h 35m

Deal found 8/18

$946

Sun 10/411:00 am -

1 stop3h 50m

Sun 10/116:20 pm -

1 stop4h 14m

Deal found 8/20

$864

Fri 10/29:09 am -

2 stops12h 31m

Fri 10/95:40 am -

2 stops17h 19m

Deal found 8/18

$997

Thu 10/2211:00 am -

1 stop3h 50m

Fri 10/233:30 pm -

1 stop4h 29m

Deal found 8/18

$864

Thu 10/19:09 am -

2 stops12h 31m

Thu 10/85:40 am -

2 stops15h 22m

Deal found 8/17

$997

Fri 10/211:00 am -

1 stop3h 50m

Fri 10/96:20 pm -

1 stop4h 14m

Deal found 8/18

$864

Mon 9/148:25 am -

2 stops13h 15m

Thu 9/175:40 am -

2 stops8h 18m

Deal found 8/21

$1,095

Thu 11/1212:36 pm -

2 stops9h 16m

Sun 11/153:25 pm -

1 stop4h 45m

Deal found 8/17

$1,035

Sun 10/44:00 pm -

1 stop5h 40m

Sun 10/113:30 pm -

1 stop4h 55m

Deal found 8/20

$864

Tue 9/1512:10 pm -

2 stops9h 30m

Fri 9/1810:05 am -

2 stops12h 54m

Deal found 8/17

$1,040

Last-minute flights from Washington, D.C. to London
Discover last-minute flight deals from Washington, D.C. to London. Data last updated August 21, 2026 and is based on user searches.

Sat 8/221:00 pm -

2 stops8h 40m

Mon 8/245:40 am -

2 stops13h 02m

Deal found 8/18

$1,449

Sat 8/225:17 pm -

1 stop4h 23m

Mon 8/245:40 am -

1 stop9h 44m

Deal found 8/18

$1,587

Sat 8/226:55 pm -

1 stop14h 25m

Mon 8/246:20 pm -

1 stop4h 11m

Deal found 8/18

$1,614

Sat 8/228:15 am -

2 stops6h 35m

Mon 8/245:40 am -

1 stop9h 44m

Deal found 8/18

$1,619

Sat 8/2211:00 am -

1 stop3h 50m

Mon 8/245:40 am -

2 stops6h 20m

Deal found 8/18

$1,675

Thu 8/2711:00 am -

1 stop3h 50m

Thu 9/36:20 pm -

1 stop4h 11m

Deal found 8/18

$1,431

Mon 8/3111:00 am -

1 stop3h 50m

Thu 9/36:20 pm -

1 stop4h 11m

Deal found 8/17

$660

Tue 9/111:00 am -

1 stop3h 50m

Fri 9/46:20 pm -

1 stop4h 11m

Deal found 8/18

$1,267

Mon 9/148:25 am -

2 stops13h 15m

Thu 9/175:40 am -

2 stops8h 18m

Deal found 8/21

$1,095

Tue 9/158:28 am -

1 stop6h 22m

Fri 9/185:40 am -

2 stops9h 20m

Deal found 8/17

$636

Tue 9/1512:10 pm -

2 stops9h 30m

Fri 9/1810:05 am -

2 stops12h 54m

Deal found 8/17

$1,040

Tue 9/2211:00 am -

1 stop3h 50m

Wed 9/236:20 pm -

1 stop4h 14m

Deal found 8/18

$1,026

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 August 21, 2026.

Sun 9/277:50 am -

2 stops21h 30m

Deal found 8/21

$270

Sun 9/276:00 am -

3 stops47h 20m

Deal found 8/21

$272

Sun 9/2711:00 am -

1 stop3h 50m

Deal found 8/21

$288

Sun 9/279:55 am -

1 stop4h 55m

Deal found 8/21

$288

Sun 9/277:00 am -

3 stops46h 20m

Deal found 8/21

$363

Sat 12/59:59 pm -

2 stops31h 36m

Deal found 8/20

$389

Wed 12/21:05 pm -

2 stops40h 30m

Deal found 8/20

$396

Sun 9/277:46 am -

2 stops7h 04m

Deal found 8/21

$484

Fri 10/211:00 am -

1 stop3h 55m

Deal found 8/18

$492

Fri 10/29:55 am -

1 stop5h 00m

Deal found 8/18

$492

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

Round-trip from	$619 (Air Canada)
One-way from	$270 (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

Washington, D.C.London

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

IADYXU

Washington, D.C. Dulles Intl

Tue 9/15

8:28 am-2:50 pm

1 stop6h 22m

London

Fri 9/18

5:40 am-3:00 pm

2 stops9h 20m

$644

Quickest round-trip

Washington, D.C.London

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

DCAYXU

Washington, D.C. Reagan-National

Mon 8/31

11:00 am-2:50 pm

1 stop3h 50m

London

Thu 9/3

6:20 pm-10:31 pm

1 stop4h 11m

$660

Washington, D.C.London

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

IADYXU

Washington, D.C. Dulles Intl

Sun 10/4

12:40 pm-5:20 am

3 stops40h 40m

London

Sun 10/11

5:55 pm-3:10 pm

3 stops21h 15m

$771

BaltimoreLondon

BWI Baltimore/Washington - YXU London

BWIYXU

Baltimore/Washington

Sun 10/4

11:45 am-5:20 am

2 stops17h 35m

London

Sun 10/11

6:10 am-11:21 am

3 stops29h 11m

$819

Washington, D.C.London

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

DCAYXU

Washington, D.C. Reagan-National

Thu 10/1

11:00 am-2:55 pm

1 stop3h 55m

London

Thu 10/8

6:20 pm-10:34 pm

1 stop4h 14m

$864

Washington, D.C.London

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

DCAYXU

Washington, D.C. Reagan-National

Sun 10/4

11:00 am-2:50 pm

1 stop3h 50m

London

Sun 10/11

6:20 pm-10:34 pm

1 stop4h 14m

$864

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

Fri 10/23

3:30 pm-7:59 pm

1 stop4h 29m

$864

Washington, D.C.London

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

DCAYXU

Washington, D.C. Reagan-National

Fri 10/2

11:00 am-2:50 pm

1 stop3h 50m

London

Fri 10/9

6:20 pm-10:34 pm

1 stop4h 14m

$864

Washington, D.C.London

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

IADYXU

Washington, D.C. Dulles Intl

Sun 10/4

4:00 pm-9:40 pm

1 stop5h 40m

London

Sun 10/11

3:30 pm-8:25 pm

1 stop4h 55m

$864

Washington, D.C.London

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

IADYXU

Washington, D.C. Dulles Intl

Fri 10/2

11:25 am-5:20 am

3 stops17h 55m

London

Fri 10/9

6:10 am-10:45 am

3 stops28h 35m

$946

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

Showing 1-10 of 26 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

IAD-YXU

DCA-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.

Cheapflights Insights

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

WAS-YXU

IAD-YXU

DCA-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 6h 22m. Air Canada provides one of the quickest options available for as low as $644. 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 Baltimore/Washington - London or Washington, D.C. Dulles Intl - 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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$270+ Cheap flights from Washington, D.C. (WAS) to London, ON (YXU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/27. Fares are subject to change and may not be available on all flights or dates of travel.

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

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 August 21, 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 August 21, 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 August 21, 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 August 21, 2026.

Last-minute flights from Washington, D.C. to LondonDiscover last-minute flight deals from Washington, D.C. to London. Data last updated August 21, 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to London. Data last updated August 21, 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 August 21, 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 August 21, 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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Complete your trip

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Other flights 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 August 21, 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 August 21, 2026.

Last-minute flights from Washington, D.C. to London
Discover last-minute flight deals from Washington, D.C. to London. Data last updated August 21, 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 August 21, 2026.