What are the cheapest airlines flying from London, Ontario to Washington, D.C. round-trip?

Cheapflights users have booked flights from London, Ontario to Washington, D.C. round-trip from $510. Other airlines that can offer you cheap pricing are United Airlines, from $581, and WestJet, from $1,168.

What are the most popular routes from London, Ontario to Washington, D.C.?

The most popular route from London, Ontario to Washington, D.C. is London - Baltimore/Washington. You may also consider London - Washington, D.C. Reagan-National or London - Washington, D.C. Dulles Intl.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London, Ontario to Washington, D.C. as you normally would.

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

Most trusted provider : When it comes to deals on London, Ontario-Washington, D.C. 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 London, Ontario-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Most people fly from London (YXU) if they book a flight from London to Washington, D.C.. On average, London has 0 outbound flights to Washington, D.C. per day from 0 airlines. London is conveniently located just 5.3 mi from London’s city center.

Can I find deals for flights from London to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on London to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from London to Washington, D.C.?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Washington, D.C..

Can I find deals for business class flights from London to Washington, D.C.?

Yes. Cheapflights offers flight deals from London to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$330+ Flights from London, ON to Washington, D.C.

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

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$447 (Mytrip)
One-way from	$330 (United Airlines)

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

Search Deals

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

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

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

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

Cheapest flights from London to Washington, D.C.
Explore the most affordable flight options available from London to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Thu 4/249:55 amYXU - BWI

2 stops34h 32mMultiple Airlines

Thu 5/19:12 pmBWI - YXU

3 stops17h 46mMultiple Airlines

Deal found 3/27

$447

Thu 4/245:15 amYXU - IAD

1 stop4h 31mAir Canada

Tue 4/292:40 pmIAD - YXU

1 stop5h 39mAir Canada

Deal found 3/26

$510

Sun 5/116:15 amYXU - BWI

2 stops8h 01mUnited Airlines

Sun 5/186:45 amBWI - YXU

2 stops8h 13mUnited Airlines

Deal found 3/27

$581

Sat 5/109:55 amYXU - IAD

2 stops11h 17mUnited Airlines

Sat 5/1710:10 pmIAD - YXU

2 stops16h 48mUnited Airlines

Deal found 3/26

$594

Sun 5/113:35 pmYXU - DCA

1 stop4h 18mUnited Airlines

Sun 5/1811:00 amDCA - YXU

1 stop3h 58mUnited Airlines

Deal found 3/27

$621

Sat 5/103:35 pmYXU - DCA

1 stop4h 18mAir Canada

Sat 5/1711:00 amDCA - YXU

1 stop4h 03mAir Canada

Deal found 3/26

$629

Sat 5/108:00 pmYXU - IAD

3 stops19h 06mMultiple Airlines

Sat 5/174:20 pmIAD - YXU

3 stops36h 54mMultiple Airlines

Deal found 3/26

$685

Sat 8/168:00 pmYXU - DCA

2 stops14h 57mWestJet

Fri 8/221:45 pmDCA - YXU

2 stops15h 29mWestJet

Deal found 3/27

$1,168

Best flights from London to Washington, D.C.
Discover carefully curated flight deals from London to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2025.

Thu 4/249:55 amYXU - BWI

2 stops34h 32mMultiple Airlines

Thu 5/19:12 pmBWI - YXU

3 stops17h 46mMultiple Airlines

Deal found 3/27

$447

Thu 4/245:15 amYXU - IAD

1 stop4h 31mAir Canada

Tue 4/292:40 pmIAD - YXU

1 stop5h 39mAir Canada

Deal found 3/26

$510

Sun 5/116:15 amYXU - BWI

2 stops8h 01mUnited Airlines

Sun 5/186:45 amBWI - YXU

2 stops8h 13mUnited Airlines

Deal found 3/27

$581

Sat 8/168:00 pmYXU - DCA

2 stops14h 57mWestJet

Fri 8/221:45 pmDCA - YXU

2 stops15h 29mWestJet

Deal found 3/27

$1,168

Sat 5/109:55 amYXU - IAD

2 stops11h 17mUnited Airlines

Sat 5/1710:10 pmIAD - YXU

2 stops16h 48mUnited Airlines

Deal found 3/26

$594

Sat 5/103:35 pmYXU - DCA

1 stop4h 18mAir Canada

Sat 5/1711:00 amDCA - YXU

1 stop4h 03mAir Canada

Deal found 3/26

$629

Sun 5/113:35 pmYXU - DCA

1 stop4h 18mUnited Airlines

Sun 5/1811:00 amDCA - YXU

1 stop3h 58mUnited Airlines

Deal found 3/27

$621

Sat 5/108:00 pmYXU - IAD

3 stops19h 06mMultiple Airlines

Sat 5/174:20 pmIAD - YXU

3 stops36h 54mMultiple Airlines

Deal found 3/26

$685

Last-minute flights from London to Washington, D.C.
Discover last-minute flight deals from London to Washington, D.C.. Data last updated March 28, 2025 and is based on user searches.

Wed 4/235:15 amYXU - DCA

1 stop3h 38mUnited Airlines

Tue 4/2912:00 pmDCA - YXU

2 stops8h 19mUnited Airlines

Deal found 3/26

$640

Thu 4/249:55 amYXU - BWI

2 stops34h 32mMultiple Airlines

Thu 5/19:12 pmBWI - YXU

3 stops17h 46mMultiple Airlines

Deal found 3/27

$447

Thu 4/245:15 amYXU - IAD

1 stop4h 31mAir Canada

Tue 4/292:40 pmIAD - YXU

1 stop5h 39mAir Canada

Deal found 3/26

$510

Thu 4/243:25 pmYXU - DCA

1 stop4h 28mAir Canada

Tue 4/299:40 amDCA - YXU

1 stop5h 08mAir Canada

Deal found 3/26

$632

Thu 4/249:55 amYXU - IAD

3 stops26h 28mMultiple Airlines

Thu 5/112:45 pmIAD - YXU

3 stops20h 33mMultiple Airlines

Deal found 3/27

$962

One-way flights from London to Washington, D.C.
Search for one-way flight options from London to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated March 28, 2025.

Sun 5/113:35 pmYXU - DCA

1 stop4h 18mUnited Airlines

Deal found 3/27

$330

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonBaltimore

YXU - BWI

YXUBWI

London

Thu 4/24

9:55 am-8:27 pm

2 stops34h 32m

Baltimore/Washington

Thu 5/1

9:12 pm-2:58 pm

3 stops17h 46m

$447

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Thu 4/24

5:15 am-9:46 am

1 stop4h 31m

Washington, D.C. Dulles Intl

Tue 4/29

2:40 pm-8:19 pm

1 stop5h 39m

$510

LondonBaltimore

YXU - BWI

YXUBWI

London

Sun 5/11

6:15 am-2:16 pm

2 stops8h 01m

Baltimore/Washington

Sun 5/18

6:45 am-2:58 pm

2 stops8h 13m

$581

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Sat 5/10

9:55 am-9:12 pm

2 stops11h 17m

Washington, D.C. Dulles Intl

Sat 5/17

10:10 pm-2:58 pm

2 stops16h 48m

$594

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sun 5/11

3:35 pm-7:53 pm

1 stop4h 18m

Washington, D.C. Reagan-National

Sun 5/18

11:00 am-2:58 pm

1 stop3h 58m

$621

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sat 5/10

3:35 pm-7:53 pm

1 stop4h 18m

Washington, D.C. Reagan-National

Sat 5/17

11:00 am-3:03 pm

1 stop4h 03m

$629

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Sat 5/10

8:00 pm-3:06 pm

3 stops19h 06m

Washington, D.C. Dulles Intl

Sat 5/17

4:20 pm-5:14 am

3 stops36h 54m

$685

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sat 8/16

8:00 pm-10:57 am

2 stops14h 57m

Washington, D.C. Reagan-National

Fri 8/22

1:45 pm-5:14 am

2 stops15h 29m

$1,168

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sun 5/11

3:35 pm-7:53 pm

1 stop4h 18m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

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

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

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 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 London, Ontario-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London, Ontario-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London, Ontario-Washington, D.C. flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on London, Ontario-Washington, D.C. 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 London, Ontario-Washington, D.C. 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 London to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from London 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 London to Washington, D.C.

What is the cheapest month to book a flight from London, Ontario to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from London, Ontario to Washington, D.C. (average of $309). Flying from London, Ontario to Washington, D.C. in June is currently the most expensive (average of $385). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Washington, D.C. by month

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

If weather is an important factor for your trip to Washington, D.C., 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with United Airlines, WestJet and Air Canada from London to Washington, D.C. to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,603 reviews

Reviews

1 / 20

4.0

Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!

United Airlines

7.4

Good

8,603 reviews

United Airlines

7.4

Good

8,603 reviews

Reviews

1 / 20

4.0

Okay

Patti,Feb 2025

FCO - EWR

WestJet

7.2

Good

2,785 reviews

United Airlines

7.4

Good

8,603 reviews

Reviews

1 / 20

4.0

Okay

Patti,Feb 2025

FCO - EWR

Air Canada

7.0

Good

8,986 reviews

United Airlines

7.4

Good

8,603 reviews

Reviews

1 / 20

4.0

Okay

Patti,Feb 2025

FCO - EWR

Related info for your journey

What airport do you fly from for flights from London to Washington, D.C.?
Most people fly from London (YXU) if they book a flight from London to Washington, D.C.. On average, London has 0 outbound flights to Washington, D.C. per day from 0 airlines. London is conveniently located just 5.3 mi from London’s city center.
What are the cheapest airlines flying from London, Ontario to Washington, D.C. round-trip?
Cheapflights users have booked flights from London, Ontario to Washington, D.C. round-trip from $510. Other airlines that can offer you cheap pricing are United Airlines, from $581, and WestJet, from $1,168.
What are the most popular routes from London, Ontario to Washington, D.C.?
The most popular route from London, Ontario to Washington, D.C. is London - Baltimore/Washington. You may also consider London - Washington, D.C. Reagan-National or London - Washington, D.C. Dulles Intl.
Can I find deals for flights from London to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on London to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from London to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Washington, D.C..
Can I find deals for business class flights from London to Washington, D.C.?
Yes. Cheapflights offers flight deals from London to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London, Ontario to Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from London, Ontario to Washington, D.C. (average of $309). Flying from London, Ontario to Washington, D.C. in June is currently the most expensive (average of $385). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Arlington

Alexandria

Fairfax

Tysons

Springfield

Rockville

Woodbridge

Gaithersburg

Fredericksburg

Linthicum Heights

Silver Spring

Falls Church

Laurel

Easton

Herndon

Bowie

Gettysburg

National Harbor

Oxon Hill

Reston

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$330+ Cheap flights from London, ON (YXU) to Washington, D.C. (WAS)

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.

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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Most accurate provider

Most trusted provider

Round-trip from

One-way from

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

Cheapest flights from London to Washington, D.C.Explore the most affordable flight options available from London to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Explore the most affordable flight options available from London to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Cheapflights Fare Finder

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

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

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 London to Washington, D.C. in March.

Best time to book a flight from London to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from London with our price prediction graph.

Cheapflights Insights

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

What is the cheapest month to book a flight from London, Ontario to Washington, D.C.?

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with United Airlines, WestJet and Air Canada from London to Washington, D.C. to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to Washington, D.C.. 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 from for flights from London to Washington, D.C.?

What are the cheapest airlines flying from London, Ontario to Washington, D.C. round-trip?

What are the most popular routes from London, Ontario to Washington, D.C.?

Can I find deals for flights from London to Washington, D.C. that include hotel bookings?

How can I find direct flights from London to Washington, D.C.?

Can I find deals for business class flights from London to Washington, D.C.?

What is the cheapest month to book a flight from London, Ontario to Washington, D.C.?

Traveling to a place near London?

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Alternative routes for London to Washington, D.C.

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Cheapest flights from London to Washington, D.C.
Explore the most affordable flight options available from London to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.