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. Dulles Intl - London. You may also consider Baltimore/Washington - London or Washington, D.C. Reagan-National - 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.

$386+ 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 October 10, 2026.

Sat 11/216:40 pm -

2 stops23h 05m

Sat 11/2810:00 am -

1 stop9h 14m

Deal found 10/7

$551

Mon 11/2311:20 am -

3 stops18h 15m

Mon 11/3010:15 am -

2 stops24h 56m

Deal found 10/9

$648

Fri 11/2010:47 pm -

2 stops18h 13m

Fri 11/279:30 am -

1 stop12h 32m

Deal found 10/6

$702

Sat 11/2110:47 pm -

2 stops18h 58m

Sat 11/2810:00 am -

1 stop10h 40m

Deal found 10/7

$712

Fri 11/208:09 pm -

1 stop20h 51m

Fri 11/279:30 am -

1 stop26h 13m

Deal found 10/6

$723

Sun 11/228:09 pm -

2 stops21h 36m

Sun 11/2910:15 am -

2 stops31h 47m

Deal found 10/8

$843

Sun 11/2210:47 pm -

2 stops30h 48m

Sun 11/2910:15 am -

1 stop11h 47m

Deal found 10/8

$874

Sat 11/214:30 pm -

1 stop3h 57m

Sat 11/283:25 pm -

1 stop4h 45m

Deal found 10/7

$881

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 October 10, 2026.

Sat 11/215:42 pm -

3 stops24h 03m

Sat 11/2810:00 am -

1 stop9h 14m

Deal found 10/7

$575

Mon 11/239:55 am -

1 stop4h 47m

Mon 11/303:25 pm -

1 stop4h 45m

Deal found 10/9

$881

Wed 12/306:00 am -

2 stops15h 52m

Sun 1/33:20 pm -

2 stops9h 28m

Deal found 10/7

$1,063

Fri 11/2010:47 pm -

2 stops18h 13m

Fri 11/279:30 am -

1 stop12h 32m

Deal found 10/6

$702

Fri 11/208:09 pm -

1 stop20h 51m

Fri 11/279:30 am -

1 stop26h 13m

Deal found 10/6

$723

Mon 11/2311:20 am -

3 stops18h 15m

Mon 11/3010:15 am -

3 stops33h 57m

Deal found 10/9

$761

Sat 11/216:11 am -

2 stops8h 31m

Sat 11/289:05 pm -

2 stops14h 43m

Deal found 10/7

$927

Sun 11/229:55 am -

1 stop4h 47m

Sun 11/293:25 pm -

1 stop4h 45m

Deal found 10/8

$988

Tue 10/209:09 am -

2 stops10h 31m

Fri 10/239:05 am -

2 stops13h 54m

Deal found 10/6

$1,104

Sun 11/226:00 am -

1 stop11h 45m

Sun 11/2910:15 am -

1 stop10h 59m

Deal found 10/8

$865

Sun 11/2210:47 pm -

2 stops30h 48m

Sun 11/2910:15 am -

1 stop11h 47m

Deal found 10/8

$874

Last-minute flights from Washington, D.C. to London
Discover last-minute flight deals from Washington, D.C. to London. Data last updated October 10, 2026 and is based on user searches.

Fri 11/2010:47 pm -

2 stops18h 13m

Fri 11/279:30 am -

1 stop12h 32m

Deal found 10/6

$702

Fri 11/208:09 pm -

1 stop20h 51m

Fri 11/279:30 am -

1 stop26h 13m

Deal found 10/6

$723

Sat 11/216:40 pm -

2 stops23h 05m

Sat 11/2810:00 am -

1 stop9h 14m

Deal found 10/7

$551

Sat 11/2110:47 pm -

2 stops18h 58m

Sat 11/2810:00 am -

1 stop10h 40m

Deal found 10/7

$712

Sat 11/214:30 pm -

1 stop3h 57m

Sat 11/283:25 pm -

1 stop4h 45m

Deal found 10/7

$881

Sun 11/228:09 pm -

2 stops21h 36m

Sun 11/2910:15 am -

2 stops31h 47m

Deal found 10/8

$843

Sun 11/2210:47 pm -

2 stops30h 48m

Sun 11/2910:15 am -

1 stop11h 47m

Deal found 10/8

$874

Mon 11/2311:20 am -

3 stops18h 15m

Mon 11/3010:15 am -

2 stops24h 56m

Deal found 10/9

$648

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 October 10, 2026.

Mon 10/261:56 pm -

3 stops40h 39m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/5

$386

Tue 10/276:07 pm -

3 stops36h 28m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/5

$388

Tue 10/271:56 pm -

3 stops40h 39m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/5

$392

Mon 10/2611:20 am -

2 stops19h 15m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/5

$395

Sun 10/2511:20 am -

3 stops43h 15m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/5

$420

Wed 10/288:05 am -

2 stops22h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/5

$438

Thu 10/223:04 pm -

3 stops38h 16m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/5

$456

Fri 10/233:50 pm -

2 stops37h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/5

$468

Thu 10/223:50 pm -

2 stops37h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/5

$486

Sun 10/251:56 pm -

3 stops40h 39m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/5

$491

Sun 11/226:10 am -

2 stops8h 32m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/8

$496

Sun 10/259:55 am -

1 stop4h 52m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/5

$501

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

Round-trip from	$551 (Mytrip)
One-way from	$386 (Kiwi.com)

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

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

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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

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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

Mon 10/26

11:20 am-6:35 am

2 stops19h 15m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$395

BaltimoreLondon

BWI Baltimore/Washington - YXU London

BWIYXU

Baltimore/Washington

Tue 10/27

8:17 pm-6:35 am

2 stops34h 18m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$455

Washington, D.C.London

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

IADYXU

Washington, D.C. Dulles Intl

Fri 10/23

3:50 pm-5:20 am

2 stops37h 30m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$468

Washington, D.C.London

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

IADYXU

Washington, D.C. Dulles Intl

Thu 10/22

3:50 pm-5:20 am

2 stops37h 30m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$486

BaltimoreLondon

BWI Baltimore/Washington - YXU London

BWIYXU

Baltimore/Washington

Sun 10/25

1:56 pm-6:35 am

3 stops40h 39m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$491

BaltimoreLondon

BWI Baltimore/Washington - YXU London

BWIYXU

Baltimore/Washington

Sun 11/22

6:10 am-2:42 pm

2 stops8h 32m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$496

Quickest round-trip

Washington, D.C.London

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

IADYXU

Washington, D.C. Dulles Intl

Fri 10/23

9:55 am-2:50 pm

1 stop4h 55m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$507

BaltimoreLondon

BWI Baltimore/Washington - YXU London

BWIYXU

Baltimore/Washington

Thu 11/19

6:10 am-2:42 pm

2 stops8h 32m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$517

BaltimoreLondon

BWI Baltimore/Washington - YXU London

BWIYXU

Baltimore/Washington

Sun 11/15

6:10 am-8:32 am

2 stops26h 22m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$520

BaltimoreLondon

BWI Baltimore/Washington - YXU London

BWIYXU

Baltimore/Washington

Wed 10/28

1:56 pm-6:35 am

3 stops40h 39m

London

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$534

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/5

Showing 1-10 of 27 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

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

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.
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. Dulles Intl - London. You may also consider Baltimore/Washington - London or Washington, D.C. Reagan-National - 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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$386+ 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 10/26. 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 October 10, 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 October 10, 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 October 10, 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 October 10, 2026.

Last-minute flights from Washington, D.C. to LondonDiscover last-minute flight deals from Washington, D.C. to London. Data last updated October 10, 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to London. Data last updated October 10, 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 October 10, 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 October 10, 2026.

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Related info for your journey

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

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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Other flights to London

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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 October 10, 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 October 10, 2026.

Last-minute flights from Washington, D.C. to London
Discover last-minute flight deals from Washington, D.C. to London. Data last updated October 10, 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 October 10, 2026.