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Cheap flights from London, ON to Washington, D.C. from C$ 444

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — WAS
5 May — 12 May1
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 30 April 2025.

Round-trip from

C$ 711

One-way from

C$ 444
27/5-3/6
  • 27/5-3/6
  • 6 total stops
  • 46h 07m total
  • London to Washington, D.C.
Search Deals
United Airlines
  • United Airlines
  • 12/6
  • 2 total stops
  • 7h 42m 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 30 April 2025.

Tue 27/56:00 a.m.YXU - BWI
3 stops24h 10mMultiple Airlines
Tue 3/67:17 a.m.BWI - YXU
3 stops21h 57mMultiple Airlines
Deal found 28/4C$ 711
Thu 12/69:55 a.m.YXU - BWI
2 stops7h 42mUnited Airlines
Thu 19/66:40 a.m.BWI - YXU
2 stops8h 17mUnited Airlines
Deal found 28/4C$ 825
Sat 31/59:55 a.m.YXU - IAD
1 stop4h 24mMultiple Airlines
Tue 3/610:20 a.m.IAD - YXU
1 stop4h 38mMultiple Airlines
Deal found 28/4C$ 850
Sat 31/53:40 p.m.YXU - DCA
1 stop4h 03mAir Canada
Tue 3/611:00 a.m.DCA - YXU
1 stop3h 58mAir Canada
Deal found 28/4C$ 882
Thu 12/69:55 a.m.YXU - DCA
2 stops9h 07mUnited Airlines
Thu 19/66:00 a.m.DCA - YXU
2 stops8h 57mUnited Airlines
Deal found 28/4C$ 890
Fri 13/69:55 a.m.YXU - IAD
2 stops6h 20mAir Canada
Fri 20/610:15 a.m.IAD - YXU
1 stop4h 42mAir Canada
Deal found 29/4C$ 890
Mon 26/53:45 p.m.YXU - IAD
2 stops15h 42mUnited Airlines
Mon 2/610:15 p.m.IAD - YXU
2 stops16h 43mUnited Airlines
Deal found 27/4C$ 908
Fri 3/106:00 a.m.YXU - IAD
1 stop11h 50mWestJet
Mon 6/106:45 p.m.IAD - YXU
1 stop10h 27mWestJet
Deal found 28/4C$ 922

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 30 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

LondonBaltimore

YXU - BWI

YXUBWI

London

Tue 27/5

6:00 a.m.-6:10 a.m.

3 stops24h 10m

Baltimore/Washington

Tue 3/6

7:17 a.m.-5:14 a.m.

3 stops21h 57m

C$ 711

LondonBaltimore

YXU - BWI

YXUBWI

London

Thu 12/6

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

2 stops7h 42m

Baltimore/Washington

Thu 19/6

6:40 a.m.-2:57 p.m.

2 stops8h 17m

C$ 825

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Sat 31/5

9:55 a.m.-2:19 p.m.

1 stop4h 24m

Washington, D.C. Dulles Intl

Tue 3/6

10:20 a.m.-2:58 p.m.

1 stop4h 38m

C$ 850

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sat 31/5

3:40 p.m.-7:43 p.m.

1 stop4h 03m

Washington, D.C. Reagan-National

Tue 3/6

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

1 stop3h 58m

C$ 882

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Thu 12/6

9:55 a.m.-7:02 p.m.

2 stops9h 07m

Washington, D.C. Reagan-National

Thu 19/6

6:00 a.m.-2:57 p.m.

2 stops8h 57m

C$ 890

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Fri 13/6

9:55 a.m.-4:15 p.m.

2 stops6h 20m

Washington, D.C. Dulles Intl

Fri 20/6

10:15 a.m.-2:57 p.m.

1 stop4h 42m

C$ 890

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Mon 26/5

3:45 p.m.-7:27 a.m.

2 stops15h 42m

Washington, D.C. Dulles Intl

Mon 2/6

10:15 p.m.-2:58 p.m.

2 stops16h 43m

C$ 908

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Fri 3/10

6:00 a.m.-5:50 p.m.

1 stop11h 50m

Washington, D.C. Dulles Intl

Mon 6/10

6:45 p.m.-5:12 a.m.

1 stop10h 27m

C$ 922

LondonBaltimore

YXU - BWI

YXUBWI

London

Thu 12/6

6:15 a.m.-1:57 p.m.

2 stops7h 42m

C$ 444

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Thu 12/6

9:55 a.m.-2:19 p.m.

1 stop4h 24m

C$ 444

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/4

Showing 1-10 of 14 results
1
2

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 30 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
8,696 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,696 reviews
United Airlines
7.4
Good
8,696 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
WestJet
7.2
Good
2,826 reviews
United Airlines
7.4
Good
8,696 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Air Canada
7.0
Good
9,242 reviews
United Airlines
7.4
Good
8,696 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

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 United Airlines is currently your cheapest option to Washington, D.C., with prices starting at C$ 825. Additional round-trip tickets that might be worth considering are offered by Air Canada and WestJet, with the lowest prices starting at C$ 882 and C$ 922, respectively.

  • 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$ 444 on United Airlines. Other airlines that offer cheap prices include Air Canada from C$ 454 and WestJet from C$ 587 one-way.

  • 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?

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Herndon
Arlington
Hanover
Bel Air
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