What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to London, Ontario?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to London, Ontario flight should consider departing on Friday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to London, Ontario at noon. Doing so could potentially save you 18% on the flight price compared to flying in the morning, which is usually more expensive.

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

London (YXU) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to London. You should not have trouble finding flights to London from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the London airport from Washington, D.C. Dulles Intl. It is only a 5.3 mi journey from London (YXU) to London’s city center.

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.

$301+ Flights from Washington, D.C. Dulles Intl Airport to London, ON

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Cheap flight deals from Dulles Intl to London

Round-trip from	$631 (Mytrip)
One-way from	$301 (Air Canada)

From Washington, D.C. Dulles Intl to London

Search Deals

One-way flight from Washington, D.C. Dulles Intl to London

Search Deals

Find flight deals from Dulles Intl to London

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 June 12, 2025.

Sat 7/269:43 pmIAD - YXU

2 stops31h 31mMultiple Airlines

Sat 8/26:00 amYXU - IAD

2 stops14h 58mMultiple Airlines

Deal found 6/11

$631

Tue 6/2410:15 amIAD - YXU

1 stop4h 42mAir Canada

Sat 6/289:55 amYXU - IAD

1 stop3h 47mAir Canada

Deal found 6/10

$672

Fri 7/2510:34 pmIAD - YXU

2 stops16h 28mUnited Airlines

Fri 8/13:35 pmYXU - IAD

2 stops19h 52mUnited Airlines

Deal found 6/10

$752

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 June 12, 2025.

Sat 7/269:43 pmIAD - YXU

2 stops31h 31mMultiple Airlines

Sat 8/26:00 amYXU - IAD

2 stops14h 58mMultiple Airlines

Deal found 6/11

$631

Tue 6/2410:15 amIAD - YXU

1 stop4h 42mAir Canada

Sat 6/289:55 amYXU - IAD

1 stop3h 47mAir Canada

Deal found 6/10

$672

Fri 7/2510:34 pmIAD - YXU

2 stops16h 28mUnited Airlines

Fri 8/13:35 pmYXU - IAD

2 stops19h 52mUnited Airlines

Deal found 6/10

$752

Last-minute flights from Dulles Intl to London
Discover last-minute flight deals from Dulles Intl to London. Data last updated June 12, 2025 and is based on user searches.

Tue 6/2410:15 amIAD - YXU

1 stop4h 42mAir Canada

Sat 6/289:55 amYXU - IAD

1 stop3h 47mAir Canada

Deal found 6/10

$672

Fri 7/2510:34 pmIAD - YXU

2 stops16h 28mUnited Airlines

Fri 8/13:35 pmYXU - IAD

2 stops19h 52mUnited Airlines

Deal found 6/10

$752

Sat 7/269:43 pmIAD - YXU

2 stops31h 31mMultiple Airlines

Sat 8/26:00 amYXU - IAD

2 stops14h 58mMultiple Airlines

Deal found 6/11

$631

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 June 12, 2025.

Mon 6/305:12 pmIAD - YXU

1 stop4h 15mAir Canada

Deal found 6/9

$301

Mon 6/3012:28 pmIAD - YXU

3 stops30h 41mMultiple Airlines

Deal found 6/9

$350

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.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Sat 7/26

9:43 pm-5:14 am

2 stops31h 31m

London

Sat 8/2

6:00 am-8:58 pm

2 stops14h 58m

$631

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Tue 6/24

10:15 am-2:57 pm

1 stop4h 42m

London

Sat 6/28

9:55 am-1:42 pm

1 stop3h 47m

$672

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Fri 7/25

10:34 pm-3:02 pm

2 stops16h 28m

London

Fri 8/1

3:35 pm-11:27 am

2 stops19h 52m

$752

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Mon 6/30

5:12 pm-9:27 pm

1 stop4h 15m

$301

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Mon 6/30

12:28 pm-7:09 pm

3 stops30h 41m

$350

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

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.

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 Washington, D.C. Dulles Intl Airport to London

Rainfall in London by month

In terms of precipitation, rainfall in London, Ontario ranges from 2.8 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. March is typically the driest time to visit London, Ontario when rainfall is around 2.8 in.

Temperature in London by month

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 68.0 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing London

United Airlines

7.4

Good

8,790 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,790 reviews

United Airlines

7.4

Good

8,790 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Air Canada

7.1

Good

9,531 reviews

United Airlines

7.4

Good

8,790 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

What airport do you fly into for flights to London from Washington, D.C. Dulles Intl?
London (YXU) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to London. You should not have trouble finding flights to London from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the London airport from Washington, D.C. Dulles Intl. It is only a 5.3 mi journey from London (YXU) to London’s city center.
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.

See more FAQs

Grand Bend

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Alternative routes for Dulles Intl to London

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Baltimore to Windsor flights

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Dulles Intl to Timmins flights

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Baltimore to North Bay flights

Reagan-National to Windsor flights

Dulles Intl to Kingston flights

Reagan-National to Kingston flights

Baltimore to Kingston flights

Complete your trip

London, Ontario car rentals

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Hamilton Airport car rentals

Toronto Region of Waterloo Intl Airport car rentals

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$301+ Cheap flights from Dulles Intl (IAD) to London, ON (YXU)

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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to London with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to London

Round-trip from

One-way from

Find 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 June 12, 2025.

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 June 12, 2025.

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.

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.

Cheapflights Insights

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

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated June 12, 2025.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to London. 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 into for flights to London from Washington, D.C. Dulles Intl?

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?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to London

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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 June 12, 2025.