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 47m. Air Canada provides one of the quickest options available for as low as $848. 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. 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.

$629+ Cheap Flights from Washington, D.C. to London, ON

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

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Best

Last-minute

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 5, 2026.

Mon 11/1611:20 am -

3 stops18h 15m

Mon 11/2310:15 am -

2 stops25h 59m

Deal found 10/2

$629

Wed 11/186:07 pm -

2 stops22h 53m

Wed 11/256:40 am -

2 stops22h 30m

Deal found 10/3

$643

Tue 11/178:41 pm -

2 stops21h 04m

Tue 11/246:40 am -

3 stops27h 13m

Deal found 10/3

$703

Mon 11/167:02 am -

2 stops22h 33m

Mon 11/2310:15 am -

1 stop25h 28m

Deal found 10/1

$757

Sat 12/1210:33 pm -

2 stops31h 02m

Fri 12/186:15 am -

1 stop15h 44m

Deal found 10/1

$815

Mon 11/169:55 am -

1 stop4h 47m

Mon 11/233:25 pm -

1 stop4h 45m

Deal found 10/3

$848

Wed 11/189:55 am -

1 stop4h 47m

Wed 11/259:15 am -

2 stops6h 38m

Deal found 10/3

$860

Sat 11/1410:54 am -

2 stops29h 26m

Sat 11/2110:00 am -

1 stop14h 43m

Deal found 9/30

$910

Tue 11/105:45 am -

3 stops23h 50m

Thu 11/126:40 am -

3 stops37h 06m

Deal found 10/2

$958

Mon 11/1610:09 am -

2 stops11h 43m

Mon 11/235:30 am -

2 stops13h 39m

Deal found 10/3

$1,039

Tue 11/106:10 am -

2 stops8h 32m

Thu 11/125:30 am -

2 stops16h 12m

Deal found 10/2

$1,040

Tue 10/209:09 am -

2 stops10h 31m

Fri 10/239:05 am -

2 stops13h 54m

Deal found 10/1

$1,104

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 5, 2026.

Mon 11/1611:20 am -

3 stops18h 15m

Mon 11/2310:15 am -

2 stops25h 59m

Deal found 10/2

$629

Mon 11/169:55 am -

1 stop4h 47m

Mon 11/233:25 pm -

1 stop4h 45m

Deal found 10/3

$848

Mon 11/1610:09 am -

2 stops11h 43m

Mon 11/235:30 am -

2 stops13h 39m

Deal found 10/3

$1,039

Wed 11/186:07 pm -

2 stops22h 53m

Wed 11/256:40 am -

2 stops22h 30m

Deal found 10/3

$643

Wed 11/189:55 am -

1 stop4h 47m

Wed 11/253:25 pm -

1 stop4h 45m

Deal found 10/3

$848

Tue 11/1710:41 am -

3 stops31h 04m

Tue 11/246:40 am -

3 stops27h 13m

Deal found 10/3

$780

Sat 12/1210:33 pm -

2 stops31h 02m

Fri 12/186:15 am -

1 stop15h 44m

Deal found 10/1

$815

Sat 10/179:55 am -

1 stop4h 55m

Wed 10/219:05 am -

1 stop5h 17m

Deal found 9/30

$943

Tue 11/176:10 am -

2 stops8h 32m

Tue 11/245:30 am -

2 stops13h 39m

Deal found 10/3

$1,039

Tue 11/106:10 am -

2 stops8h 32m

Thu 11/125:30 am -

2 stops16h 12m

Deal found 10/2

$1,040

Thu 10/156:29 am -

2 stops8h 21m

Sun 10/189:05 am -

2 stops13h 54m

Deal found 10/1

$1,104

Tue 11/105:45 am -

2 stops23h 50m

Thu 11/126:40 am -

3 stops37h 06m

Deal found 10/2

$1,008

Tue 10/209:09 am -

2 stops10h 31m

Fri 10/239:05 am -

2 stops13h 54m

Deal found 10/1

$1,104

Sat 11/146:10 am -

2 stops15h 42m

Sat 11/215:30 am -

2 stops16h 12m

Deal found 9/30

$1,114

Last-minute flights from Washington, D.C. to London
Discover last-minute flight deals from Washington, D.C. to London. Data last updated October 5, 2026 and is based on user searches.

Sat 10/179:55 am -

1 stop4h 55m

Wed 10/219:05 am -

1 stop5h 17m

Deal found 9/30

$943

Tue 10/209:09 am -

2 stops10h 31m

Fri 10/239:05 am -

2 stops13h 54m

Deal found 10/1

$1,104

Tue 11/105:45 am -

3 stops23h 50m

Thu 11/126:40 am -

3 stops37h 06m

Deal found 10/2

$958

Tue 11/106:10 am -

2 stops8h 32m

Thu 11/125:30 am -

2 stops16h 12m

Deal found 10/2

$1,040

Sat 11/1410:54 am -

2 stops29h 26m

Sat 11/2110:00 am -

1 stop14h 43m

Deal found 9/30

$910

Mon 11/1611:20 am -

3 stops18h 15m

Mon 11/2310:15 am -

2 stops25h 59m

Deal found 10/2

$629

Mon 11/167:02 am -

2 stops22h 33m

Mon 11/2310:15 am -

1 stop25h 28m

Deal found 10/1

$757

Mon 11/169:55 am -

1 stop4h 47m

Mon 11/233:25 pm -

1 stop4h 45m

Deal found 10/3

$848

Mon 11/1610:09 am -

2 stops11h 43m

Mon 11/235:30 am -

2 stops13h 39m

Deal found 10/3

$1,039

Tue 11/178:41 pm -

2 stops21h 04m

Tue 11/246:40 am -

3 stops27h 13m

Deal found 10/3

$703

Wed 11/186:07 pm -

2 stops22h 53m

Wed 11/256:40 am -

2 stops22h 30m

Deal found 10/3

$643

Wed 11/189:55 am -

1 stop4h 47m

Wed 11/259:15 am -

2 stops6h 38m

Deal found 10/3

$860

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

Round-trip from	$629 (Mytrip)

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

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

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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 11/16

11:20 am-5:35 am

3 stops18h 15m

London

Mon 11/23

10:15 am-12:14 pm

2 stops25h 59m

$629

Washington, D.C.London

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

IADYXU

Washington, D.C. Dulles Intl

Wed 11/18

6:07 pm-5:00 pm

2 stops22h 53m

London

Wed 11/25

6:40 am-5:10 am

2 stops22h 30m

$643

BaltimoreLondon

BWI Baltimore/Washington - YXU London

BWIYXU

Baltimore/Washington

Tue 11/17

10:41 am-5:45 pm

3 stops31h 04m

London

Tue 11/24

6:40 am-9:53 am

3 stops27h 13m

$780

Washington, D.C.London

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

IADYXU

Washington, D.C. Dulles Intl

Sat 12/12

10:33 pm-5:35 am

2 stops31h 02m

London

Fri 12/18

6:15 am-9:59 pm

1 stop15h 44m

$815

Quickest round-trip

Washington, D.C.London

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

IADYXU

Washington, D.C. Dulles Intl

Mon 11/16

9:55 am-2:42 pm

1 stop4h 47m

London

Mon 11/23

3:25 pm-8:10 pm

1 stop4h 45m

$848

Washington, D.C.London

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

IADYXU

Washington, D.C. Dulles Intl

Wed 11/18

9:55 am-2:42 pm

1 stop4h 47m

London

Wed 11/25

3:25 pm-8:10 pm

1 stop4h 45m

$848

Washington, D.C.London

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

IADYXU

Washington, D.C. Dulles Intl

Sat 10/17

9:55 am-2:50 pm

1 stop4h 55m

London

Wed 10/21

9:05 am-2:22 pm

1 stop5h 17m

$943

BaltimoreLondon

BWI Baltimore/Washington - YXU London

BWIYXU

Baltimore/Washington

Tue 11/10

5:45 am-5:35 am

2 stops23h 50m

London

Thu 11/12

6:40 am-7:46 pm

3 stops37h 06m

$1,008

BaltimoreLondon

BWI Baltimore/Washington - YXU London

BWIYXU

Baltimore/Washington

Mon 11/16

10:09 am-9:52 pm

2 stops11h 43m

London

Mon 11/23

5:30 am-7:09 pm

2 stops13h 39m

$1,039

BaltimoreLondon

BWI Baltimore/Washington - YXU London

BWIYXU

Baltimore/Washington

Tue 11/17

6:10 am-2:42 pm

2 stops8h 32m

London

Tue 11/24

5:30 am-7:09 pm

2 stops13h 39m

$1,039

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/2

Showing 1-10 of 14 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.
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 47m. Air Canada provides one of the quickest options available for as low as $848. 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. 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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$629+ 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 11/16. 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 5, 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 5, 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 5, 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 5, 2026.

Last-minute flights from Washington, D.C. to LondonDiscover last-minute flight deals from Washington, D.C. to London. Data last updated October 5, 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to London. Data last updated October 5, 2026 and is based on user searches.

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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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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 5, 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 5, 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 5, 2026 and is based on user searches.