How long is the flight from London, Ontario to Washington, D.C.?

Air Canada and United Airlines can get you from London, Ontario to Washington, D.C. in just under 4h 54m. Your travel time can differ by up to 3h 43m. The distance from London, Ontario to Washington, D.C. is about 549 km. This flight may include one or multiple stops.

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.

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).

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.

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.

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.

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.

C$ 422+ Cheap Flights from London, ON to Washington, D.C.

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

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 11 July 2026.

Fri 28/86:10 a.m.

YXU

IAD

1 stop12h 00m

WestJet

Mon 31/87:00 p.m.

IAD

YXU

1 stop10h 20m

WestJet

Deal found 11/7C$ 560

Thu 23/710:05 a.m.

YXU

IAD

1 stop5h 19m

Air Canada

Wed 29/79:55 a.m.

IAD

YXU

1 stop4h 57m

Air Canada

Deal found 9/7C$ 727

Wed 5/85:40 a.m.

YXU

IAD

2 stops9h 21m

Air Canada

Wed 12/89:45 a.m.

IAD

YXU

2 stops7h 57m

Air Canada

Deal found 8/7C$ 736

Fri 28/86:10 a.m.

YXU

IAD

1 stop12h 00m

Multiple Airlines

Mon 31/88:39 p.m.

IAD

YXU

2 stops23h 11m

Multiple Airlines

Deal found 11/7C$ 742

Tue 11/85:40 a.m.

YXU

DCA

2 stops6h 20m

Air Canada

Fri 14/812:40 p.m.

DCA

YXU

2 stops9h 00m

Air Canada

Deal found 7/7C$ 744

Tue 11/83:30 p.m.

YXU

IAD

1 stop4h 54m

Air Canada

Fri 14/84:20 p.m.

IAD

YXU

1 stop5h 20m

Air Canada

Deal found 7/7C$ 744

Tue 8/95:40 a.m.

YXU

DCA

2 stops6h 20m

Air Canada

Sat 12/912:40 p.m.

DCA

YXU

2 stops9h 00m

Air Canada

Deal found 7/7C$ 774

Fri 24/710:05 a.m.

YXU

IAD

1 stop5h 19m

Air Canada

Sun 26/79:55 a.m.

IAD

YXU

1 stop4h 57m

Air Canada

Deal found 6/7C$ 774

Sat 8/810:05 a.m.

YXU

IAD

1 stop5h 19m

Air Canada

Sat 15/84:20 p.m.

IAD

YXU

1 stop5h 20m

Air Canada

Deal found 9/7C$ 776

Mon 24/85:40 a.m.

YXU

IAD

2 stops9h 21m

Air Canada

Fri 28/89:55 a.m.

IAD

YXU

1 stop4h 55m

Air Canada

Deal found 8/7C$ 781

Thu 23/710:05 a.m.

YXU

DCA

2 stops11h 43m

Air Canada

Wed 29/76:00 a.m.

DCA

YXU

2 stops8h 52m

Air Canada

Deal found 9/7C$ 795

Wed 5/85:40 a.m.

YXU

IAD

2 stops9h 21m

Multiple Airlines

Wed 12/83:45 p.m.

IAD

YXU

3 stops25h 00m

Multiple Airlines

Deal found 8/7C$ 804

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

Round-trip from	C$ 560
One-way from	C$ 422

WestJet
28/8-31/8
2 total stops
22h 20m total
London to Washington, D.C.

Search Deals

Air Canada
27/9
1 total stop
4h 29m total
London to Washington, D.C.

Search Deals

Cheapflights Fare Finder

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

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Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Tue 11/8

3:30 p.m.-8:24 p.m.

1 stop4h 54m

Washington, D.C. Dulles Intl

Fri 14/8

4:20 p.m.-9:40 p.m.

1 stop5h 20m

C$ 744

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Wed 5/8

10:05 a.m.-3:24 p.m.

1 stop5h 19m

Washington, D.C. Dulles Intl

Wed 12/8

9:45 a.m.-5:42 p.m.

2 stops7h 57m

C$ 746

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Tue 11/8

3:30 p.m.-7:57 p.m.

1 stop4h 27m

Washington, D.C. Reagan-National

Fri 14/8

12:40 p.m.-9:40 p.m.

2 stops9h 00m

C$ 749

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Tue 8/9

5:40 a.m.-12:00 p.m.

2 stops6h 20m

Washington, D.C. Reagan-National

Sat 12/9

12:40 p.m.-9:40 p.m.

2 stops9h 00m

C$ 774

LondonWashington, D.C.

YXU - DCA

YXUDCA

London

Sat 31/10

5:30 a.m.-12:19 p.m.

2 stops6h 49m

Washington, D.C. Reagan-National

Wed 4/11

12:55 p.m.-9:52 p.m.

2 stops8h 57m

C$ 774

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Fri 24/7

10:05 a.m.-3:24 p.m.

1 stop5h 19m

Washington, D.C. Dulles Intl

Sun 26/7

9:55 a.m.-2:52 p.m.

1 stop4h 57m

C$ 774

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Sat 8/8

10:05 a.m.-3:24 p.m.

1 stop5h 19m

Washington, D.C. Dulles Intl

Sat 15/8

4:20 p.m.-9:40 p.m.

1 stop5h 20m

C$ 776

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Mon 24/8

5:40 a.m.-3:01 p.m.

2 stops9h 21m

Washington, D.C. Dulles Intl

Fri 28/8

9:55 a.m.-2:50 p.m.

1 stop4h 55m

C$ 778

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Wed 5/8

5:40 a.m.-3:01 p.m.

2 stops9h 21m

Washington, D.C. Dulles Intl

Wed 12/8

3:45 p.m.-4:45 p.m.

3 stops25h 00m

C$ 804

LondonBaltimore

YXU - BWI

YXUBWI

London

Tue 11/8

10:05 a.m.-6:42 p.m.

2 stops8h 37m

Baltimore/Washington

Fri 14/8

10:25 a.m.-9:40 p.m.

2 stops11h 15m

C$ 920

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/7

Showing 1-10 of 27 resultsSorted by cheapest first

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.

YXU-WAS

YXU-DCA

YXU-IAD

YXU-BWI

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.

YXU-WAS

YXU-DCA

YXU-IAD

YXU-BWI

No data available for this route at this time. Please check back soon.

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 8.6 km from London’s city centre.
How long is the flight from London, Ontario to Washington, D.C.?
Air Canada and United Airlines can get you from London, Ontario to Washington, D.C. in just under 4h 54m. Your travel time can differ by up to 3h 43m. The distance from London, Ontario to Washington, D.C. is about 549 km. This flight may include one or multiple stops.
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.

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Silver Spring

Fairfax

Hanover

Oxon Hill

Gaithersburg

Reston

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Rockville

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London to Reagan-National flights

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

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Cheap flights from London, ON to Washington, D.C. from C$ 422

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 27/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 11 July 2026.

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 11 July 2026.

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 11 July 2026.

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 11 July 2026.

Last-minute flights from London to Washington, D.C.Discover last-minute flight deals from London to Washington, D.C.. Data last updated 11 July 2026 and is based on user searches.

Discover last-minute flight deals from London to Washington, D.C.. Data last updated 11 July 2026 and is based on user searches.

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 11 July 2026.

Search for one-way flight options from London to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 11 July 2026.

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

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

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.?

How long is the flight from London, Ontario to Washington, D.C.?

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.?

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London and Washington, D.C. flights

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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 11 July 2026.

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 11 July 2026.

Last-minute flights from London to Washington, D.C.
Discover last-minute flight deals from London to Washington, D.C.. Data last updated 11 July 2026 and is based on user searches.

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 11 July 2026.