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$388+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YXU
févr. 4 — févr. 111
mar. 2/4
mar. 2/11
1 adult, Economy
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Cheap flight deals from Dulles Intl to London

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to London (YXU). 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 janvier 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$662
(Air Canada)

One-way from

$388
(United Airlines)
Provider with most accurate pricing for Washington, D.C. Dulles Intl-London flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-London flights.
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From Washington, D.C. Dulles Intl to London
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One-way flight from Washington, D.C. Dulles Intl to London
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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 janvier 30, 2025.

This Air Canada deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 2/262:35 pmIAD - YXU
1 stop5h 45mAir Canada
dim. 3/25:15 amYXU - IAD
1 stop6h 24mAir Canada
Deal found 1/29$662
This United deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 2/2610:05 pmIAD - YXU
2 stops22h 15mMultiple Airlines
dim. 3/25:15 amYXU - IAD
2 stops9h 58mMultiple Airlines
Deal found 1/29$825
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 3/1410:08 pmIAD - YXU
2 stops22h 12mUnited Airlines
ven. 3/213:20 pmYXU - IAD
2 stops16h 06mUnited Airlines
Deal found 1/29$857
This business-class.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 7/26:15 amIAD - YXU
2 stops12h 54mWestJet
mer. 7/166:00 amYXU - IAD
1 stop11h 54mWestJet
Deal found 1/29$2,907

Find flights from Dulles Intl to London within your budget

Customize your flight search to find flights from Dulles Intl to London 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 2,558,603 searches. Data last updated janvier 30, 2025.

Fly from

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Route

Depart

Return

Price

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

mer. 2/26

2:35 pm-8:20 pm

1 stop5h 45m

London

dim. 3/2

5:15 am-11:39 am

1 stop6h 24m

$662

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

mer. 2/26

10:05 pm-8:20 pm

2 stops22h 15m

London

dim. 3/2

5:15 am-3:13 pm

2 stops9h 58m

$825

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

ven. 3/14

10:08 pm-8:20 pm

2 stops22h 12m

London

ven. 3/21

3:20 pm-7:26 am

2 stops16h 06m

$857

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

mer. 7/2

6:15 am-7:09 pm

2 stops12h 54m

London

mer. 7/16

6:00 am-5:54 pm

1 stop11h 54m

$2,907

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

lun. 3/3

8:20 am-2:40 pm

1 stop6h 20m

$388

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Compare providers for flights from Dulles Intl to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to London in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-London, Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-London, Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-London, Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-London, Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-London, Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Travel insights for flights from Dulles Intl to London

Get recent, data-driven insights about flights from Dulles Intl to London including ideal travel times, pricing trends, and more.

Rainfall in London by month

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

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

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 janvier 30, 2025.
United Airlines
7.4
Good
8,906 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.7

Entertainment

7.1

Reviews

1 / 20

8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

United Airlines
7.4
Good
8,906 reviews
United Airlines
7.4
Good
8,906 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.7

Entertainment

7.1

Reviews

1 / 20

8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

WestJet
7.2
Good
2,817 reviews
United Airlines
7.4
Good
8,906 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.7

Entertainment

7.1

Reviews

1 / 20

8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

Air Canada
7.0
Good
8,641 reviews
United Airlines
7.4
Good
8,906 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.7

Entertainment

7.1

Reviews

1 / 20

8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

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?

    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 1 airline has 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

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

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Alternative routes for Dulles Intl to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Dulles Intl to London

Discover the top airline that operate flights from Dulles Intl to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated janvier 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$264Average$560FlexibilityNo cancel feeOn-time67%
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