Find flights
When to book
Airlines
FAQs

Cheap flights from London, ON to Washington, D.C. from C$ 739

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — WAS
31 Mar — 7 Apr1
1 adult

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

Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 26 March 2025.

Round-trip from

C$ 739
9/5-16/5
  • 9/5-16/5
  • 5 total stops
  • 70h 08m total
  • London to Washington, D.C.
Search Deals

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 26 March 2025.

Fri 9/58:00 p.m.YXU - BWI
3 stops34h 09mMultiple Airlines
Fri 16/55:15 p.m.BWI - YXU
2 stops35h 59mMultiple Airlines
Deal found 25/3C$ 739
Fri 6/63:35 p.m.YXU - IAD
1 stop5h 52mAir Canada
Sun 8/68:18 a.m.IAD - YXU
2 stops6h 40mAir Canada
Deal found 25/3C$ 777
Fri 9/59:55 a.m.YXU - IAD
2 stops11h 19mUnited Airlines
Fri 16/510:36 p.m.IAD - YXU
2 stops22h 52mUnited Airlines
Deal found 25/3C$ 795
Fri 6/69:55 a.m.YXU - BWI
2 stops7h 42mUnited Airlines
Sun 8/66:50 a.m.BWI - YXU
2 stops8h 08mUnited Airlines
Deal found 25/3C$ 828
Fri 6/63:35 p.m.YXU - DCA
1 stop4h 18mUnited Airlines
Sun 8/611:00 a.m.DCA - YXU
1 stop3h 58mUnited Airlines
Deal found 25/3C$ 884
Fri 6/66:15 a.m.YXU - IAD
1 stop5h 24mMultiple Airlines
Sun 8/68:18 a.m.IAD - YXU
2 stops6h 40mMultiple Airlines
Deal found 25/3C$ 884
Fri 9/58:00 p.m.YXU - IAD
3 stops26h 54mWestJet
Fri 16/56:00 a.m.IAD - YXU
3 stops23h 14mWestJet
Deal found 25/3C$ 1,136
Fri 6/66:00 a.m.YXU - BWI
2 stops14h 43mWestJet
Sun 8/61:42 p.m.BWI - YXU
2 stops15h 32mWestJet
Deal found 25/3C$ 1,749

Cheapflights Fare Finder

Customize your flight search to find flights from London to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 26 March 2025.
Use the filters below to find and compare flights from London to Washington, D.C. that are best for you.

Fly from

London

Fly to

Washington, D.C.

Route

Depart

Return

Price

LondonBaltimore

YXU - BWI

YXUBWI

London

Fri 9/5

8:00 p.m.-6:09 a.m.

3 stops34h 09m

Baltimore/Washington

Fri 16/5

5:15 p.m.-5:14 a.m.

2 stops35h 59m

C$ 739

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Fri 6/6

3:35 p.m.-9:27 p.m.

1 stop5h 52m

Washington, D.C. Dulles Intl

Sun 8/6

8:18 a.m.-2:58 p.m.

2 stops6h 40m

C$ 777

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Fri 9/5

9:55 a.m.-9:14 p.m.

2 stops11h 19m

Washington, D.C. Dulles Intl

Fri 16/5

10:36 p.m.-9:28 p.m.

2 stops22h 52m

C$ 795

LondonBaltimore

YXU - BWI

YXUBWI

London

Fri 6/6

9:55 a.m.-5:37 p.m.

2 stops7h 42m

Baltimore/Washington

Sun 8/6

6:50 a.m.-2:58 p.m.

2 stops8h 08m

C$ 828

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Fri 6/6

6:15 a.m.-11:39 a.m.

1 stop5h 24m

Washington, D.C. Dulles Intl

Sun 8/6

8:18 a.m.-2:58 p.m.

2 stops6h 40m

C$ 884

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Fri 6/6

3:35 p.m.-7:53 p.m.

1 stop4h 18m

Washington, D.C. Reagan-National

Sun 8/6

11:00 a.m.-2:58 p.m.

1 stop3h 58m

C$ 884

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Fri 9/5

8:00 p.m.-10:54 p.m.

3 stops26h 54m

Washington, D.C. Dulles Intl

Fri 16/5

6:00 a.m.-5:14 a.m.

3 stops23h 14m

C$ 1,136

LondonBaltimore

YXU - BWI

YXUBWI

London

Fri 6/6

6:00 a.m.-8:43 p.m.

2 stops14h 43m

Baltimore/Washington

Sun 8/6

1:42 p.m.-5:14 a.m.

2 stops15h 32m

C$ 1,749

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/3

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, February is the cheapest month in which you can book a flight from London, Ontario to Washington, D.C. (average of C$ 256). Flying from London, Ontario to Washington, D.C. in October is currently the most expensive (average of C$ 352). 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

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

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated 26 March 2025.
Read reviews from past customers who have flown United Airlines, WestJet and Air Canada from London to Washington, D.C.. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,608 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.0

Overall

7.4

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
8,608 reviews
United Airlines
7.4
Good
8,608 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.0

Overall

7.4

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!
WestJet
7.2
Good
2,785 reviews
United Airlines
7.4
Good
8,608 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.0

Overall

7.4

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!
Air Canada
7.0
Good
8,960 reviews
United Airlines
7.4
Good
8,608 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.0

Overall

7.4

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!

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.?

    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 8.6 km from London’s city centre.

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

    Flying on Air Canada is currently your cheapest option to Washington, D.C., with prices starting at C$ 777. Additional round-trip tickets that might be worth considering are offered by United Airlines and WestJet, with the lowest prices starting at C$ 795 and C$ 1,136, respectively.

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

    When deciding which route to take from London, Ontario to Washington, D.C. consider London - Washington, D.C. Reagan-National, London - Washington, D.C. Dulles Intl or London - Baltimore/Washington as they are the most popular.

  • 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, February is the cheapest month in which you can book a flight from London, Ontario to Washington, D.C. (average of C$ 256). Flying from London, Ontario to Washington, D.C. in October is currently the most expensive (average of C$ 352). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Herndon
Arlington
Hanover
Fairfax
Bel Air
Falls Church
Alexandria
Manassas
Fredericksburg
Rockville

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Washington, D.C.?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Washington, D.C. from London today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from London to Washington, D.C.?

Millions of users choose and trust Cheapflights to book the best flight deals from London to Washington, D.C. for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from London to Washington, D.C. with no change fees?

Yes! Cheapflights helps users easily find flights from London to Washington, D.C. with no change fees.

Can Cheapflights notify me if prices for flights from London to Washington, D.C. become cheaper?

Not ready to book yet? You can track prices for flights from London to Washington, D.C. on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.