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Cheap flights from London to Washington, D.C. from C$ 349

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 22/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
YXU — WAS
24 Mar — 31 Mar1
1 adult
Sun 24/3
Sun 31/3

Find deals on flights from London to Washington, D.C. by searching across hundreds of travel sites at once

 
Cheapflights users frequently choose these airlines when searching for flights from London to Washington, D.C., based on our search results.
Cheapflights users frequently choose these airlines when searching for flights from London to Washington, D.C., based on our search results.
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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 19 March 2024.

Popular in

November

Cheapest in

March

Average price

C$ 493

Round-trip from

C$ 355
High demand for flights, 40% potential price rise
Best time to find cheap flights, 23% potential price drop
Average for round-trip flights in March 2024
From London to Washington, D.C. (WAS)

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

Due to multiple factors, expect to potentially pay more when booking in November. For low rates, March can be a great choice for travel to Washington, D.C.. Flights to Washington, D.C. from London, Ontario in March are about C$ 642 on average during March, but can be found for as low as C$ 493.

When is the cheapest time to fly from London, Ontario to Washington, D.C. (YXU - WAS)?

A simple way to save on the total cost of your ticket is to fly from London, Ontario to Washington, D.C. in the morning. If you’re flexible enough to do this you can expect to save up to 9% on your trip compared to booking a flight at noon.

Cheap Air Canada flights from London to Washington, D.C.

Explore cheap flight options specifically provided by Air Canada for the route between London and Washington, D.C.. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 525,491 searches. Data last updated 19 March 2024.
Take a peek at the cheapest Air Canada flights we've detected travelling from London to Washington, D.C.. Make sure to double check the flight details before booking.
Sat 25/53:25 p.m.YXU - DCA
1 stop4h 27mAir Canada
Wed 29/59:15 a.m.DCA - YXU
1 stop5h 31mAir Canada
Deal found 17/3C$ 708
Sat 25/53:25 p.m.YXU - IAD
1 stop4h 50mAir Canada
Tue 28/56:30 a.m.IAD - YXU
1 stop8h 16mAir Canada
Deal found 17/3C$ 753
Sat 25/56:00 a.m.YXU - IAD
2 stops9h 56mAir Canada
Tue 28/58:19 a.m.IAD - YXU
2 stops13h 17mAir Canada
Deal found 17/3C$ 766
Sat 25/56:00 a.m.YXU - IAD
2 stops9h 56mAir Canada
Tue 28/59:55 a.m.IAD - YXU
2 stops11h 41mAir Canada
Deal found 18/3C$ 768
Sun 24/36:00 a.m.YXU - IAD
1 stop4h 32mAir Canada
Sun 31/34:15 p.m.IAD - YXU
1 stop6h 01mAir Canada
Deal found 17/3C$ 960
Sun 24/36:00 a.m.YXU - IAD
2 stops8h 57mAir Canada
Sun 31/34:15 p.m.IAD - YXU
1 stop6h 01mAir Canada
Deal found 17/3C$ 967
Sun 24/32:45 p.m.YXU - BWI
1 stop5h 30mAir Canada
Sun 31/310:10 a.m.BWI - YXU
1 stop3h 51mAir Canada
Deal found 17/3C$ 1,377

Cheap United Airlines flights from London to Washington, D.C.

Explore cheap flight options specifically provided by United Airlines for the route between London and Washington, D.C.. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 525,491 searches. Data last updated 19 March 2024.
Some of the best deals we've found on United Airlines flights travelling from London to Washington, D.C.. Ensure the flight price, dates, time, and airline match your criteria before you book.
Sat 27/42:45 p.m.YXU - BWI
2 stops18h 54mUnited Airlines
Wed 1/56:30 a.m.BWI - YXU
2 stops8h 16mUnited Airlines
Deal found 17/3C$ 998
Sat 27/49:45 a.m.YXU - BWI
2 stops11h 24mUnited Airlines
Wed 1/52:37 p.m.BWI - YXU
2 stops24h 09mUnited Airlines
Deal found 18/3C$ 1,202

Cheap London to Washington, D.C. flights in March & April 2024

Find cheap flight options from London to Washington, D.C. specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 525,491 searches. Prices were last updated on 19 March 2024.
Check out some of the best flight deals from London to Washington, D.C. in 2024. More deals are always being added, so be sure to check back regularly.
Sun 24/32:45 p.m.YXU - DCA
1 stop5h 13mAir Canada
Sun 31/36:45 p.m.DCA - YXU
1 stop3h 31mAir Canada
Deal found 17/3C$ 960
Sun 24/36:00 a.m.YXU - IAD
1 stop4h 32mAir Canada
Sun 31/34:15 p.m.IAD - YXU
1 stop6h 01mAir Canada
Deal found 17/3C$ 960
Sun 24/36:00 a.m.YXU - DCA
2 stops6h 06mAir Canada
Sun 31/39:40 a.m.DCA - YXU
1 stop4h 21mAir Canada
Deal found 17/3C$ 967
Sun 24/36:00 a.m.YXU - IAD
2 stops8h 57mAir Canada
Sun 31/34:15 p.m.IAD - YXU
1 stop6h 01mAir Canada
Deal found 17/3C$ 967
Sat 27/42:45 p.m.YXU - BWI
2 stops18h 54mUnited Airlines
Wed 1/56:30 a.m.BWI - YXU
2 stops8h 16mUnited Airlines
Deal found 17/3C$ 998
Sun 24/36:00 a.m.YXU - DCA
2 stops8h 25mMultiple Airlines
Sun 31/36:00 a.m.DCA - YXU
2 stops8h 01mMultiple Airlines
Deal found 17/3C$ 1,019
Sun 24/36:00 a.m.YXU - IAD
2 stops13h 00mMultiple Airlines
Sun 31/39:55 a.m.IAD - YXU
2 stops12h 21mMultiple Airlines
Deal found 17/3C$ 1,137
Sat 27/49:45 a.m.YXU - BWI
2 stops11h 24mUnited Airlines
Wed 1/52:37 p.m.BWI - YXU
2 stops24h 09mUnited Airlines
Deal found 18/3C$ 1,202
Sun 24/32:45 p.m.YXU - BWI
1 stop5h 30mAir Canada
Sun 31/310:10 a.m.BWI - YXU
1 stop3h 51mAir Canada
Deal found 17/3C$ 1,377

London to Washington, D.C. 2024 flight deals

Discover exclusive flight deals for travel between London and Washington, D.C. in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 525,491 searches. Data last updated 19 March 2024.
Check out some of the best flight deals from London to Washington, D.C. in 2024. More deals are always being added, so be sure to check back regularly.
Sat 25/53:25 p.m.YXU - DCA
1 stop4h 27mAir Canada
Wed 29/59:15 a.m.DCA - YXU
1 stop5h 31mAir Canada
Deal found 17/3C$ 708
Sat 25/53:25 p.m.YXU - IAD
1 stop4h 50mAir Canada
Tue 28/56:30 a.m.IAD - YXU
1 stop8h 16mAir Canada
Deal found 17/3C$ 753
Sat 25/56:00 a.m.YXU - IAD
2 stops9h 56mAir Canada
Tue 28/58:19 a.m.IAD - YXU
2 stops13h 17mAir Canada
Deal found 17/3C$ 766
Sat 25/56:00 a.m.YXU - IAD
2 stops9h 56mAir Canada
Tue 28/59:55 a.m.IAD - YXU
2 stops11h 41mAir Canada
Deal found 18/3C$ 768
Sun 24/32:45 p.m.YXU - DCA
1 stop5h 13mAir Canada
Sun 31/36:45 p.m.DCA - YXU
1 stop3h 31mAir Canada
Deal found 17/3C$ 960
Sun 24/36:00 a.m.YXU - IAD
1 stop4h 32mAir Canada
Sun 31/34:15 p.m.IAD - YXU
1 stop6h 01mAir Canada
Deal found 17/3C$ 960
Sun 24/36:00 a.m.YXU - DCA
2 stops6h 06mAir Canada
Sun 31/39:40 a.m.DCA - YXU
1 stop4h 21mAir Canada
Deal found 17/3C$ 967
Sun 24/36:00 a.m.YXU - IAD
2 stops8h 57mAir Canada
Sun 31/34:15 p.m.IAD - YXU
1 stop6h 01mAir Canada
Deal found 17/3C$ 967
Sat 27/42:45 p.m.YXU - BWI
2 stops18h 54mUnited Airlines
Wed 1/56:30 a.m.BWI - YXU
2 stops8h 16mUnited Airlines
Deal found 17/3C$ 998

London to Washington, D.C. flights leaving soon

Find last-minute flight options from London to Washington, D.C. for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 525,491 searches. Data last updated 19 March 2024.
Have a look at some of the last-minute flights available departing from London to Washington, D.C.. Users should examine the flight details to ensure there are no surprises.
Sun 24/32:45 p.m.YXU - DCA
1 stop5h 13mAir Canada
Sun 31/36:45 p.m.DCA - YXU
1 stop3h 31mAir Canada
Deal found 17/3C$ 960
Sun 24/36:00 a.m.YXU - IAD
1 stop4h 32mAir Canada
Sun 31/34:15 p.m.IAD - YXU
1 stop6h 01mAir Canada
Deal found 17/3C$ 960
Sun 24/36:00 a.m.YXU - DCA
2 stops6h 06mAir Canada
Sun 31/39:40 a.m.DCA - YXU
1 stop4h 21mAir Canada
Deal found 17/3C$ 967
Sun 24/36:00 a.m.YXU - IAD
2 stops8h 57mAir Canada
Sun 31/34:15 p.m.IAD - YXU
1 stop6h 01mAir Canada
Deal found 17/3C$ 967
Sun 24/36:00 a.m.YXU - DCA
2 stops8h 25mMultiple Airlines
Sun 31/36:00 a.m.DCA - YXU
2 stops8h 01mMultiple Airlines
Deal found 17/3C$ 1,019
Sun 24/36:00 a.m.YXU - IAD
2 stops13h 00mMultiple Airlines
Sun 31/39:55 a.m.IAD - YXU
2 stops12h 21mMultiple Airlines
Deal found 17/3C$ 1,137
Sun 24/32:45 p.m.YXU - BWI
1 stop5h 30mAir Canada
Sun 31/310:10 a.m.BWI - YXU
1 stop3h 51mAir Canada
Deal found 17/3C$ 1,377
Sun 24/33:50 p.m.YXU - BWI
2 stops28h 30mWestJet
Sun 31/33:29 p.m.BWI - YXU
2 stops23h 35mWestJet
Deal found 17/3C$ 4,286

One-way flights to Washington, D.C. from London

Search for one-way flight options from London to Washington, D.C.. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 525,491 searches. Data last updated 19 March 2024.
If you're seeking multiple options on one-way flights from London to Washington, D.C., be sure to check out these deals, which are updated often. Users needing a return flight from London to Washington, D.C. should utilize the search form above.
Wed 22/53:25 p.m.YXU - DCA
1 stop4h 27mAir Canada
Deal found 17/3C$ 349
Wed 22/53:25 p.m.YXU - IAD
1 stop4h 50mAir Canada
Deal found 17/3C$ 349
Mon 22/73:20 p.m.YXU - DCA
1 stop4h 35mAir Canada
Deal found 17/3C$ 372
Mon 22/73:20 p.m.YXU - IAD
1 stop4h 59mAir Canada
Deal found 17/3C$ 372
Mon 22/73:20 p.m.YXU - DCA
2 stops17h 47mUnited Airlines
Deal found 17/3C$ 494
Mon 22/76:00 a.m.YXU - IAD
2 stops18h 30mUnited Airlines
Deal found 17/3C$ 552
Mon 22/76:15 a.m.YXU - BWI
3 stops28h 53mMultiple Airlines
Deal found 17/3C$ 582
Mon 22/79:50 a.m.YXU - BWI
2 stops11h 47mUnited Airlines
Deal found 17/3C$ 583
Mon 22/76:15 a.m.YXU - IAD
3 stops28h 22mMultiple Airlines
Deal found 17/3C$ 604

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

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 525,491 searches. Data last updated 19 March 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 708 - C$ 1,202

Route

Depart

Return

Price

LondonWashington, D.C. Reagan-National

YXU - DCA

YXUDCA

London

Sat 25/5

1 stop4h 27m

Washington, D.C. Reagan-National

Wed 29/5

1 stop5h 31m

C$ 708

LondonWashington, D.C. Dulles Intl

YXU - IAD

YXUIAD

London

Sat 25/5

1 stop4h 50m

Washington, D.C. Dulles Intl

Tue 28/5

1 stop8h 16m

C$ 753

LondonWashington, D.C. Dulles Intl

YXU - IAD

YXUIAD

London

Sat 25/5

2 stops9h 56m

Washington, D.C. Dulles Intl

Tue 28/5

2 stops13h 17m

C$ 766

LondonWashington, D.C. Dulles Intl

YXU - IAD

YXUIAD

London

Sat 25/5

2 stops9h 56m

Washington, D.C. Dulles Intl

Tue 28/5

2 stops11h 41m

C$ 768

LondonBaltimore/Washington

YXU - BWI

YXUBWI

London

Sat 27/4

2 stops18h 54m

Baltimore/Washington

Wed 1/5

2 stops8h 16m

C$ 998

LondonBaltimore/Washington

YXU - BWI

YXUBWI

London

Sat 27/4

2 stops11h 24m

Baltimore/Washington

Wed 1/5

2 stops24h 09m

C$ 1,202

Flights are sorted by cheapest first

Deals found on 17/3

When is the cheapest time to fly from London, Ontario to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from London to Washington, D.C.. Price data was last updated on 17 March 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their London, Ontario to Washington, D.C. flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Washington, D.C. by month

Plan your trip from London to Washington, D.C. by taking into account the cheapest months to travel. The average price of a one-way flight from London to Washington, D.C. is currently C$ 473 while a round-trip flight costs C$ 866. Price data was last updated on 17 March 2024.

Currently, September is the cheapest month in which you can book a flight from London, Ontario to Washington, D.C. (average of C$ 251). Flying from London, Ontario to Washington, D.C. in July is currently the most expensive (average of C$ 354). 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.

January

C$ 378

February

C$ 348

March

C$ 379

April

C$ 360

May

C$ 402

June

C$ 472

July

C$ 479

August

C$ 464

September

C$ 340

October

C$ 367

November

C$ 413

December

C$ 360

Temperature and rainfall in Washington, D.C. by month

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

WAS

Temperature

2 - 27 °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 19 March 2024.
Read reviews from past customers who have flown Air Canada and United Airlines 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.
7.5
Good
3,066 reviews

Comfort

7.3

Boarding

7.7

Overall

7.5

Crew

8.2

Entertainment

6.5

Food

6.5

Reviews

1 / 10

Flights good. Our original flight from Halifax to Toronto was delayed 4 days Unacceptable We flew with Air Canada a picked up original flight in Toronto Cost extra $500 Maybe Westjet could give us a voucher or pay for this inconvenience. Thank You. Garry Barkman

7.5
Good
3,066 reviews
7.5
Good
3,066 reviews

Comfort

7.3

Boarding

7.7

Overall

7.5

Crew

8.2

Entertainment

6.5

Food

6.5

Reviews

1 / 10

Flights good. Our original flight from Halifax to Toronto was delayed 4 days Unacceptable We flew with Air Canada a picked up original flight in Toronto Cost extra $500 Maybe Westjet could give us a voucher or pay for this inconvenience. Thank You. Garry Barkman

7.4
Good
11,602 reviews
7.5
Good
3,066 reviews

Comfort

7.3

Boarding

7.7

Overall

7.5

Crew

8.2

Entertainment

6.5

Food

6.5

Reviews

1 / 10

Flights good. Our original flight from Halifax to Toronto was delayed 4 days Unacceptable We flew with Air Canada a picked up original flight in Toronto Cost extra $500 Maybe Westjet could give us a voucher or pay for this inconvenience. Thank You. Garry Barkman

7.0
Good
6,717 reviews
7.5
Good
3,066 reviews

Comfort

7.3

Boarding

7.7

Overall

7.5

Crew

8.2

Entertainment

6.5

Food

6.5

Reviews

1 / 10

Flights good. Our original flight from Halifax to Toronto was delayed 4 days Unacceptable We flew with Air Canada a picked up original flight in Toronto Cost extra $500 Maybe Westjet could give us a voucher or pay for this inconvenience. Thank You. Garry Barkman

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 1 airline. London is conveniently located just 8.6 km from London’s city centre.

  • Can I find flights from London, Ontario to Washington, D.C. for under C$ 800 on Cheapflights?

    Yes, there are multiple flights from London, Ontario to Washington, D.C. for under C$ 800. The cheapest flight booked recently is on Air Canada for just C$ 708, but on average you can expect to pay C$ 865.

  • Are there last-minute flights available from London, Ontario to Washington, D.C. for under C$ 1,000?

    There are currently 8+ open flights from London, Ontario to Washington, D.C. within the next 7 days for less than C$ 1,000.

  • 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$ 708. Another option worth looking into is United Airlines, starting at C$ 998 round trip.

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

    One-way options have recently been found by users for as low as C$ 349 on Air Canada. Other airlines that offer cheap prices include United Airlines from C$ 494 and WestJet from C$ 782 one-way.

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

  • What does YXU to IAD mean?

    YXU and IAD are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. YXU to IAD refers to a flight route from London Airport to Washington, D.C. Dulles Intl Airport. Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA) are other airports near this flight route and their unique identifiers/IATA codes.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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

Discover the top airline that operate flights from London to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 525,491 searches. Data last updated 19 March 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 548AverageC$ 651FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Search flights from London to Washington, D.C. by cabin class

Find flights from London to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

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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.