What are the cheapest airlines to fly from Washington, D.C. to London, Ontario one-way?

For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $347. Users have also found prices from $376 and $686 on United Airlines and WestJet, respectively.

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. Dulles Intl - London. You may also consider Washington, D.C. Reagan-National - 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 FlightHub the most. FlightHub 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.

$347+ 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	FlightHub 3 stars
Round-trip from	$409 (Kiwi.com)
One-way from	$347 (Air Canada)

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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One-way flight 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 febrero 20, 2025.

dom. 4/69:56 pmBWI - YXU

1 stop13h 24mMultiple Airlines

dom. 4/138:00 pmYXU - BWI

2 stops28h 15mMultiple Airlines

Deal found 2/20

$409

vie. 5/236:45 pmIAD - YXU

1 stop10h 29mWestJet

lun. 5/266:00 amYXU - IAD

1 stop11h 54mWestJet

Deal found 2/20

$568

jue. 5/2211:00 amDCA - YXU

1 stop3h 58mAir Canada

lun. 5/263:35 pmYXU - DCA

1 stop4h 18mAir Canada

Deal found 2/20

$710

jue. 5/2210:30 amIAD - YXU

1 stop4h 28mAir Canada

lun. 5/269:55 amYXU - IAD

1 stop3h 36mAir Canada

Deal found 2/20

$710

vie. 3/218:22 amIAD - YXU

2 stops11h 58mUnited Airlines

lun. 3/249:55 amYXU - IAD

2 stops21h 31mUnited Airlines

Deal found 2/19

$800

vie. 3/2110:51 amBWI - YXU

2 stops9h 29mUnited Airlines

mar. 3/259:55 amYXU - BWI

2 stops11h 26mUnited Airlines

Deal found 2/19

$831

dom. 4/66:00 amIAD - YXU

3 stops29h 20mMultiple Airlines

dom. 4/138:00 pmYXU - IAD

3 stops26h 24mMultiple Airlines

Deal found 2/20

$935

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 febrero 20, 2025.

dom. 4/69:56 pmBWI - YXU

1 stop13h 24mMultiple Airlines

dom. 4/138:00 pmYXU - BWI

2 stops28h 15mMultiple Airlines

Deal found 2/20

$409

jue. 5/2211:00 amDCA - YXU

1 stop3h 58mAir Canada

lun. 5/263:35 pmYXU - DCA

1 stop4h 18mAir Canada

Deal found 2/20

$710

vie. 3/218:22 amIAD - YXU

2 stops11h 58mUnited Airlines

lun. 3/249:55 amYXU - IAD

2 stops21h 31mUnited Airlines

Deal found 2/19

$800

jue. 4/38:25 amIAD - YXU

1 stop6h 23mAir Canada

jue. 4/105:15 amYXU - IAD

1 stop4h 26mAir Canada

Deal found 2/19

$721

jue. 4/31:45 pmIAD - YXU

3 stops29h 28mMultiple Airlines

jue. 4/108:00 pmYXU - IAD

3 stops27h 00mMultiple Airlines

Deal found 2/19

$813

vie. 3/2110:51 amBWI - YXU

2 stops9h 29mUnited Airlines

mar. 3/259:55 amYXU - BWI

2 stops11h 26mUnited Airlines

Deal found 2/19

$831

Last-minute flights from Washington, D.C. to London
Discover last-minute flight deals from Washington, D.C. to London. Data last updated febrero 20, 2025 and is based on user searches.

vie. 3/219:40 amDCA - YXU

1 stop5h 01mAir Canada

mar. 3/255:15 amYXU - DCA

1 stop3h 42mAir Canada

Deal found 2/19

$739

vie. 3/2110:35 amIAD - YXU

1 stop4h 06mAir Canada

mar. 3/259:55 amYXU - IAD

1 stop4h 06mAir Canada

Deal found 2/19

$739

vie. 3/218:22 amIAD - YXU

2 stops11h 58mUnited Airlines

lun. 3/249:55 amYXU - IAD

2 stops21h 31mUnited Airlines

Deal found 2/19

$800

vie. 3/2110:51 amBWI - YXU

2 stops9h 29mUnited Airlines

mar. 3/259:55 amYXU - BWI

2 stops11h 26mUnited Airlines

Deal found 2/19

$831

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 febrero 20, 2025.

lun. 3/1710:35 amIAD - YXU

1 stop4h 06mAir Canada

Deal found 2/18

$347

sáb. 4/58:22 amIAD - YXU

2 stops11h 56mUnited Airlines

Deal found 2/19

$376

dom. 4/610:50 amBWI - YXU

2 stops9h 28mUnited Airlines

Deal found 2/19

$404

lun. 3/173:05 pmIAD - YXU

3 stops28h 08mWestJet

Deal found 2/18

$686

Find flights from Washington, D.C. to London within your budget

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreLondon

BWI - YXU

BWIYXU

Baltimore/Washington

dom. 4/6

9:56 pm-11:20 am

1 stop13h 24m

London

dom. 4/13

8:00 pm-12:15 am

2 stops28h 15m

$409

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

vie. 5/23

6:45 pm-5:14 am

1 stop10h 29m

London

lun. 5/26

6:00 am-5:54 pm

1 stop11h 54m

$568

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

jue. 5/22

11:00 am-2:58 pm

1 stop3h 58m

London

lun. 5/26

3:35 pm-7:53 pm

1 stop4h 18m

$710

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

jue. 5/22

10:30 am-2:58 pm

1 stop4h 28m

London

lun. 5/26

9:55 am-1:31 pm

1 stop3h 36m

$710

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

vie. 3/21

8:22 am-8:20 pm

2 stops11h 58m

London

lun. 3/24

9:55 am-7:26 am

2 stops21h 31m

$800

BaltimoreLondon

BWI - YXU

BWIYXU

Baltimore/Washington

vie. 3/21

10:51 am-8:20 pm

2 stops9h 29m

London

mar. 3/25

9:55 am-9:21 pm

2 stops11h 26m

$831

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

dom. 4/6

6:00 am-11:20 am

3 stops29h 20m

London

dom. 4/13

8:00 pm-10:24 pm

3 stops26h 24m

$935

BaltimoreLondon

BWI - YXU

BWIYXU

Baltimore/Washington

dom. 4/6

10:50 am-8:18 pm

2 stops9h 28m

$404

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

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 FlightHub the most. FlightHub 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.

Travel insights for flights from Washington, D.C. to London

Get recent, data-driven insights about flights from Washington, D.C. to London including ideal travel times, pricing trends, and more.

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

8,766 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,766 reviews

United Airlines

7.4

Good

8,766 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

WestJet

7.2

Good

2,801 reviews

United Airlines

7.4

Good

8,766 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Air Canada

7.0

Good

8,748 reviews

United Airlines

7.4

Good

8,766 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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 cheapest airlines to fly from Washington, D.C. to London, Ontario one-way?
For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $347. Users have also found prices from $376 and $686 on United Airlines and WestJet, respectively.
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 Washington, D.C. Reagan-National - 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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London, Ontario car rentals

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Hamilton Airport car rentals

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Toronto Region of Waterloo Intl Airport car rentals

Sarnia Airport car rentals

Toronto car rentals

Ottawa car rentals

Windsor car rentals

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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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$347+ 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 3/17. 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

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2. Select your favorite providers

3. Compare prices and book

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

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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 febrero 20, 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 febrero 20, 2025.

Find flights from Washington, D.C. to London within your budget

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.

Travel insights for flights from Washington, D.C. to London

Get recent, data-driven insights about flights from Washington, D.C. to London including ideal travel times, pricing trends, and more.

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 febrero 20, 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 cheapest airlines to fly from Washington, D.C. to London, Ontario one-way?

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 febrero 20, 2025.