What is the cheapest day to fly from Washington, D.C. to London, Ontario?

Travelers seeking maximum savings on their Washington, D.C. to London, Ontario flight should consider departing on Friday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 day to fly round-trip from Washington, D.C. to London, Ontario?

Flights from Washington, D.C. to London, Ontario are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London, Ontario.

Most accurate provider : When it comes to deals on Washington, D.C.-London, Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-London, Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-London, Ontario flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C.-London, Ontario flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-London, Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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. 1 airline 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.

$475+ Flights from Washington, D.C. to London, ON

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$488 (Mytrip)

Provider with most accurate pricing for Washington, D.C. (WAS)-London flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-London flights.

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

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

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 April 22, 2025.

Mon 6/96:45 pmIAD - YXU

1 stop10h 29mWestJet

Mon 6/166:00 amYXU - IAD

1 stop11h 54mWestJet

Deal found 4/22

$475

Mon 6/97:17 amBWI - YXU

3 stops21h 57mMultiple Airlines

Mon 6/169:45 pmYXU - BWI

3 stops31h 58mMultiple Airlines

Deal found 4/22

$488

Mon 6/96:45 pmIAD - YXU

1 stop10h 29mMultiple Airlines

Mon 6/169:45 pmYXU - IAD

3 stops35h 52mMultiple Airlines

Deal found 4/22

$501

Sat 6/74:22 pmBWI - YXU

2 stops29h 06mUnited Airlines

Sat 6/146:15 amYXU - BWI

2 stops23h 05mUnited Airlines

Deal found 4/22

$584

Mon 6/96:59 amDCA - YXU

1 stop7h 59mMultiple Airlines

Mon 6/169:45 pmYXU - DCA

3 stops35h 07mMultiple Airlines

Deal found 4/22

$609

Mon 6/911:00 amDCA - YXU

1 stop3h 58mAir Canada

Mon 6/163:35 pmYXU - DCA

1 stop4h 08mAir Canada

Deal found 4/22

$622

Tue 8/1210:34 pmIAD - YXU

2 stops18h 33mUnited Airlines

Sun 8/316:15 amYXU - IAD

2 stops23h 07mUnited Airlines

Deal found 4/22

$654

Thu 5/2210:25 amIAD - YXU

1 stop4h 38mAir Canada

Mon 5/269:55 amYXU - IAD

2 stops11h 09mAir Canada

Deal found 4/22

$696

Tue 8/121:45 pmDCA - YXU

2 stops15h 29mWestJet

Sun 8/316:00 amYXU - DCA

2 stops14h 22mWestJet

Deal found 4/22

$1,442

Fri 8/112:15 pmBWI - YXU

2 stops16h 59mWestJet

Fri 8/296:00 amYXU - BWI

2 stops15h 43mWestJet

Deal found 4/22

$1,631

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 April 22, 2025.

Mon 6/97:17 amBWI - YXU

3 stops21h 57mMultiple Airlines

Mon 6/169:45 pmYXU - BWI

3 stops31h 58mMultiple Airlines

Deal found 4/22

$488

Sat 6/74:22 pmBWI - YXU

2 stops29h 06mUnited Airlines

Sat 6/146:15 amYXU - BWI

2 stops23h 05mUnited Airlines

Deal found 4/22

$584

Mon 5/2611:00 amDCA - YXU

1 stop4h 03mAir Canada

Wed 5/283:45 pmYXU - DCA

1 stop3h 58mAir Canada

Deal found 4/21

$636

Mon 5/266:00 amIAD - YXU

3 stops23h 14mWestJet

Wed 5/286:00 amYXU - IAD

1 stop11h 54mWestJet

Deal found 4/21

$733

Mon 5/263:30 pmIAD - YXU

1 stop5h 58mMultiple Airlines

Wed 5/289:55 amYXU - IAD

1 stop3h 46mMultiple Airlines

Deal found 4/21

$625

Thu 5/2210:25 amIAD - YXU

1 stop4h 38mAir Canada

Mon 5/263:45 pmYXU - IAD

1 stop16h 09mAir Canada

Deal found 4/21

$659

Thu 6/510:15 pmIAD - YXU

2 stops16h 43mUnited Airlines

Thu 6/126:15 amYXU - IAD

2 stops23h 00mUnited Airlines

Deal found 4/21

$735

Mon 5/2611:00 amDCA - YXU

1 stop4h 03mUnited Airlines

Wed 5/283:45 pmYXU - DCA

1 stop3h 58mUnited Airlines

Deal found 4/21

$807

Mon 5/2611:00 amDCA - YXU

1 stop4h 03mMultiple Airlines

Wed 5/286:15 amYXU - DCA

2 stops9h 34mMultiple Airlines

Deal found 4/21

$812

Fri 8/112:15 pmBWI - YXU

2 stops16h 59mWestJet

Fri 8/296:00 amYXU - BWI

2 stops15h 43mWestJet

Deal found 4/22

$1,631

Last-minute flights from Washington, D.C. to London
Discover last-minute flight deals from Washington, D.C. to London. Data last updated April 22, 2025 and is based on user searches.

Thu 5/2210:25 amIAD - YXU

1 stop4h 38mMultiple Airlines

Mon 5/266:15 amYXU - IAD

1 stop5h 24mMultiple Airlines

Deal found 4/22

$652

Thu 5/2211:00 amDCA - YXU

1 stop4h 03mAir Canada

Mon 5/269:55 amYXU - DCA

1 stop22h 58mAir Canada

Deal found 4/22

$659

Thu 5/2210:25 amIAD - YXU

1 stop4h 38mAir Canada

Mon 5/269:55 amYXU - IAD

2 stops11h 09mAir Canada

Deal found 4/22

$696

Thu 5/226:40 amBWI - YXU

2 stops8h 23mUnited Airlines

Mon 5/266:15 amYXU - BWI

2 stops7h 42mUnited Airlines

Deal found 4/22

$840

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

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Mon 6/9

6:45 pm-5:14 am

1 stop10h 29m

London

Mon 6/16

6:00 am-5:54 pm

1 stop11h 54m

$475

BaltimoreLondon

BWI - YXU

BWIYXU

Baltimore/Washington

Mon 6/9

7:17 am-5:14 am

3 stops21h 57m

London

Mon 6/16

9:45 pm-5:43 am

3 stops31h 58m

$488

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Mon 6/9

6:45 pm-5:14 am

1 stop10h 29m

London

Mon 6/16

9:45 pm-9:37 am

3 stops35h 52m

$501

BaltimoreLondon

BWI - YXU

BWIYXU

Baltimore/Washington

Sat 6/7

4:22 pm-9:28 pm

2 stops29h 06m

London

Sat 6/14

6:15 am-5:20 am

2 stops23h 05m

$584

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Mon 6/9

6:59 am-2:58 pm

1 stop7h 59m

London

Mon 6/16

9:45 pm-8:52 am

3 stops35h 07m

$609

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Mon 6/9

11:00 am-2:58 pm

1 stop3h 58m

London

Mon 6/16

3:35 pm-7:43 pm

1 stop4h 08m

$622

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Tue 8/12

10:34 pm-5:07 pm

2 stops18h 33m

London

Sun 8/31

6:15 am-5:22 am

2 stops23h 07m

$654

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Thu 5/22

10:25 am-3:03 pm

1 stop4h 38m

London

Mon 5/26

9:55 am-9:04 pm

2 stops11h 09m

$696

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Tue 8/12

1:45 pm-5:14 am

2 stops15h 29m

London

Sun 8/31

6:00 am-8:22 pm

2 stops14h 22m

$1,442

BaltimoreLondon

BWI - YXU

BWIYXU

Baltimore/Washington

Fri 8/1

12:15 pm-5:14 am

2 stops16h 59m

London

Fri 8/29

6:00 am-9:43 pm

2 stops15h 43m

$1,631

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Compare providers for flights from Washington, D.C. to London

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to London in April.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C.-London, Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-London, Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-London, Ontario flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C.-London, Ontario flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-London, Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

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

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

One of the essential ways to save on airfare from Washington, D.C. to London, Ontario is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 23% on airfare.

Rainfall in London by month

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.

Temperature in London by month

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).

Reviews of airlines servicing London

To help decide which airline to fly from Washington, D.C. to London, see what other customers have to say about United Airlines, WestJet and Air Canada. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,683 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,683 reviews

United Airlines

7.4

Good

8,683 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

WestJet

7.2

Good

2,813 reviews

United Airlines

7.4

Good

8,683 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Air Canada

7.0

Good

9,180 reviews

United Airlines

7.4

Good

8,683 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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. 1 airline 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. 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.

See more FAQs

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Alternative routes for Washington, D.C. to London

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Niagara Falls car rentals

Top airline flying from Washington, D.C. to London

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$264	Average$560	FlexibilityNo cancel fee	On-time67%

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$475+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to London with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Most accurate provider

Most trusted provider

Round-trip from

Find 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 April 22, 2025.

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 April 22, 2025.

Cheapflights Fare Finder

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

Compare providers for flights from Washington, D.C. to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to London in April.

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.

Cheapflights Insights

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

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

Find hourly flight availability from Washington, D.C. to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 22, 2025.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

Reviews of airlines servicing London

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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?

Traveling to a place near Washington, D.C.?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington, D.C. to London

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Top airline flying 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 April 22, 2025.