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

A quick flight from Washington, D.C. Dulles Intl Airport to London, Ontario can take about 4h 55m. Air Canada provides one of the quickest options available for as low as C$ 895. Airlines will cover a distance of 549 km.

In terms of precipitation, rainfall in London, Ontario ranges from 70.0 - 100.0 mm per month. January is typically the wettest month, when rainfall can reach 100.0 mm. March is typically the driest time to visit London, Ontario when rainfall is around 70.0 mm.

If weather is an important factor for your trip to London, Ontario, 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 20.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -6.0 C).

What is the cheapest time of day to fly from IAD to YXU?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to London, Ontario as you normally would.

What airport do you fly into for flights to London from Washington, D.C. Dulles Intl?

For a flight from Washington, D.C. Dulles Intl to London, you will be flying into London. London (YXU) is just 8.6 km from the centre of the city. London is the only London airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 0 airlines have flights to London from Washington, D.C. Dulles Intl on a regular basis.

Can I find deals for flights from Dulles Intl to London that include hotel bookings?

Yes. In addition to deals on Dulles Intl to London flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to London.

Can I find deals for business class flights from Dulles Intl to London?

Yes. Cheapflights offers flight deals from Dulles Intl to London 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$ 609+ Cheap Flights from Washington, D.C. Dulles Intl Airport to London, ON

Cheap flight deals from Dulles Intl to London

Enter your travel dates to find the best prices.

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Cheapest flights from Dulles Intl to London
Explore the most affordable flight options available from Dulles Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Fri 23/104:00 p.m. -

1 stop3h 40m

Fri 30/103:25 p.m. -

1 stop4h 45m

Deal found 8/9C$ 873

Tue 6/109:55 a.m. -

1 stop4h 55m

Sat 10/103:30 p.m. -

1 stop4h 55m

Deal found 5/9C$ 895

Tue 6/104:00 p.m. -

1 stop3h 40m

Mon 12/108:20 p.m. -

1 stop15h 01m

Deal found 6/9C$ 928

Sun 25/109:55 a.m. -

1 stop4h 52m

Sun 1/113:25 p.m. -

1 stop4h 45m

Deal found 10/9C$ 1,129

Sun 25/106:10 a.m. -

2 stops13h 42m

Sun 1/113:25 p.m. -

1 stop4h 45m

Deal found 10/9C$ 1,292

Find flight deals from Dulles Intl to London

Round-trip from	C$ 873
One-way from	C$ 609

Air Canada
23/10-30/10
2 total stops
8h 25m total
Washington, D.C. to London

Search Deals

United Airlines
24/10-31/12
1 total stop
4h 55m total
Washington, D.C. to London

Search Deals

Cheapflights Fare Finder

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

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Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Sat 24/10

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

1 stop4h 55m

London

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 609

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Tue 6/10

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

1 stop4h 55m

London

Sat 10/10

3:30 p.m.-8:25 p.m.

1 stop4h 55m

C$ 895

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - YXU London

IADYXU

Washington, D.C. Dulles Intl

Tue 6/10

4:00 p.m.-7:40 p.m.

1 stop3h 40m

London

Mon 12/10

8:20 p.m.-11:21 a.m.

1 stop15h 01m

C$ 928

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Sorted by cheapest first

Best time to book a flight from Dulles Intl to London

Have a flexible travel schedule? Discover the best time to fly to London from Dulles Intl with our price prediction graph.

IAD-YXU

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.

Related info for your journey

What airport do you fly into for flights to London from Washington, D.C. Dulles Intl?
For a flight from Washington, D.C. Dulles Intl to London, you will be flying into London. London (YXU) is just 8.6 km from the centre of the city. London is the only London airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 0 airlines have flights to London from Washington, D.C. Dulles Intl on a regular basis.
How long is the flight from Washington, D.C. Dulles Intl Airport to London, Ontario?
A quick flight from Washington, D.C. Dulles Intl Airport to London, Ontario can take about 4h 55m. Air Canada provides one of the quickest options available for as low as C$ 895. Airlines will cover a distance of 549 km.
Can I find deals for flights from Dulles Intl to London that include hotel bookings?
Yes. In addition to deals on Dulles Intl to London flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to London.
Can I find deals for business class flights from Dulles Intl to London?
Yes. Cheapflights offers flight deals from Dulles Intl to London 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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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Dulles Intl to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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Can Cheapflights find flights from Dulles Intl to London with no change fees?

Certainly. Search results for flights to London from Dulles Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Cheap flights from Washington, D.C. Dulles Intl Airport to London, ON from C$ 609

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 24/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Dulles Intl to London

Cheapest flights from Dulles Intl to LondonExplore the most affordable flight options available from Dulles Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Explore the most affordable flight options available from Dulles Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Best flights from Dulles Intl to LondonDiscover carefully curated flight deals from Dulles Intl to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Discover carefully curated flight deals from Dulles Intl to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Last-minute flights from Dulles Intl to LondonDiscover last-minute flight deals from Dulles Intl to London. Data last updated 10 September 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to London. Data last updated 10 September 2026 and is based on user searches.

One-way flights from Dulles Intl to LondonSearch for one-way flight options from Dulles Intl to London. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Search for one-way flight options from Dulles Intl to London. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

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

Best time to book a flight from Dulles Intl to London

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Related info for your journey

What airport do you fly into for flights to London from Washington, D.C. Dulles Intl?

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

Can I find deals for flights from Dulles Intl to London that include hotel bookings?

How can I find direct flights from Dulles Intl to London?

Can I find deals for business class flights from Dulles Intl to London?

Travelling to a place near London?

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Alternative routes for Dulles Intl to London

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Complete your trip

Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Ontario

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Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 September 2026.

Dulles Intl and London flights

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How does Cheapflights help users find flights from Dulles Intl to London?

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to London?

Can Cheapflights find flights from Dulles Intl to London with no change fees?

Can Cheapflights notify me if prices for flights from Dulles Intl to London become cheaper?

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Cheapest flights from Dulles Intl to London
Explore the most affordable flight options available from Dulles Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Best flights from Dulles Intl to London
Discover carefully curated flight deals from Dulles Intl to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Last-minute flights from Dulles Intl to London
Discover last-minute flight deals from Dulles Intl to London. Data last updated 10 September 2026 and is based on user searches.

One-way flights from Dulles Intl to London
Search for one-way flight options from Dulles Intl to London. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.