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Cheap flights from London, ON to Washington, D.C. from C$ 695

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — WAS
20 Apr — 27 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 15 April 2025.

Round-trip from

C$ 695
Air Canada
  • Air Canada
  • 29/4-28/9
  • 2 total stops
  • 7h 35m 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 15 April 2025.

Tue 29/45:15 a.m.YXU - DCA
1 stop3h 38mAir Canada
Sun 28/911:00 a.m.DCA - YXU
1 stop3h 57mAir Canada
Deal found 15/4C$ 695
Mon 7/75:45 p.m.YXU - DCA
1 stop4h 42mUnited Airlines
Sun 13/77:25 a.m.DCA - YXU
2 stops9h 42mUnited Airlines
Deal found 15/4C$ 772
Tue 29/49:55 a.m.YXU - IAD
1 stop6h 13mAir Canada
Sun 28/98:18 a.m.IAD - YXU
2 stops6h 39mAir Canada
Deal found 15/4C$ 772
Mon 7/76:15 a.m.YXU - IAD
2 stops7h 34mUnited Airlines
Sun 13/76:35 a.m.IAD - YXU
2 stops8h 22mUnited Airlines
Deal found 15/4C$ 779
Mon 7/79:45 p.m.YXU - IAD
3 stops44h 09mMultiple Airlines
Sun 13/711:58 a.m.IAD - YXU
3 stops33h 02mMultiple Airlines
Deal found 15/4C$ 1,143
Mon 7/76:00 a.m.YXU - BWI
2 stops12h 46mWestJet
Sun 13/72:10 p.m.BWI - YXU
2 stops15h 04mWestJet
Deal found 15/4C$ 2,205
Mon 7/76:00 a.m.YXU - DCA
3 stops31h 13mWestJet
Sun 13/78:30 a.m.DCA - YXU
3 stops34h 39mWestJet
Deal found 15/4C$ 2,411

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 15 April 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

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Tue 29/4

5:15 a.m.-8:53 a.m.

1 stop3h 38m

Washington, D.C. Reagan-National

Sun 28/9

11:00 a.m.-2:57 p.m.

1 stop3h 57m

C$ 695

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Mon 7/7

5:45 p.m.-10:27 p.m.

1 stop4h 42m

Washington, D.C. Reagan-National

Sun 13/7

7:25 a.m.-5:07 p.m.

2 stops9h 42m

C$ 772

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Tue 29/4

9:55 a.m.-4:08 p.m.

1 stop6h 13m

Washington, D.C. Dulles Intl

Sun 28/9

8:18 a.m.-2:57 p.m.

2 stops6h 39m

C$ 772

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Mon 7/7

6:15 a.m.-1:49 p.m.

2 stops7h 34m

Washington, D.C. Dulles Intl

Sun 13/7

6:35 a.m.-2:57 p.m.

2 stops8h 22m

C$ 779

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Mon 7/7

9:45 p.m.-5:54 p.m.

3 stops44h 09m

Washington, D.C. Dulles Intl

Sun 13/7

11:58 a.m.-9:00 p.m.

3 stops33h 02m

C$ 1,143

LondonBaltimore

YXU - BWI

YXUBWI

London

Mon 7/7

6:00 a.m.-6:46 p.m.

2 stops12h 46m

Baltimore/Washington

Sun 13/7

2:10 p.m.-5:14 a.m.

2 stops15h 04m

C$ 2,205

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Mon 7/7

6:00 a.m.-1:13 p.m.

3 stops31h 13m

Washington, D.C. Reagan-National

Sun 13/7

8:30 a.m.-7:09 p.m.

3 stops34h 39m

C$ 2,411

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/4

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$ 327). Flying from London, Ontario to Washington, D.C. in June is currently the most expensive (average of C$ 411). 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 15 April 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
8,658 reviews
Check prices

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
United Airlines
7.4
Good
8,658 reviews
United Airlines
7.4
Good
8,658 reviews
Check prices

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
WestJet
7.2
Good
2,805 reviews
United Airlines
7.4
Good
8,658 reviews
Check prices

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
Air Canada
7.0
Good
9,127 reviews
United Airlines
7.4
Good
8,658 reviews
Check prices

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

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$ 695. Additional round-trip tickets that might be worth considering are offered by United Airlines and WestJet, with the lowest prices starting at C$ 772 and C$ 2,205, 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 - Baltimore/Washington or London - Washington, D.C. Dulles Intl 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$ 327). Flying from London, Ontario to Washington, D.C. in June is currently the most expensive (average of C$ 411). 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
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Rockville
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Alexandria
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