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Cheap flights from London, ON to Washington, D.C. Dulles Intl Airport from C$ 513

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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — IAD
22 Jan — 29 Jan1
1 adult

Cheap flight deals from London to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to Dulles Intl (IAD). 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 17 January 2025.

Round-trip from

C$ 917

One-way from

C$ 513

Popular in

January

Cheapest in

September

Average price

C$ 1,052
United Airlines
  • United Airlines
  • 12/2-18/2
  • 3 total stops
  • 14h 44m total
  • London to Washington, D.C.
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8/2
  • 8/2
  • 1 total stop
  • 6h 31m total
  • London to Washington, D.C.
Search Deals
High demand for flights, 29% potential price rise
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Best time to find cheap flights, 4% potential price drop
Search Deals
Average for round-trip flights in January 2025
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Find flight deals from London to Dulles Intl

Cheapest flights from London to Dulles Intl
Explore the most affordable flight options available from London to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Wed 12/25:45 a.m.YXU - IAD
1 stop5h 56mUnited Airlines
Tue 18/26:02 a.m.IAD - YXU
2 stops8h 48mUnited Airlines
Deal found 16/1C$ 917
Wed 12/23:25 p.m.YXU - IAD
1 stop5h 56mMultiple Airlines
Tue 18/210:35 a.m.IAD - YXU
1 stop4h 15mMultiple Airlines
Deal found 16/1C$ 921

Find flights from London to Dulles Intl within your budget

Customize your flight search to find flights from London to Dulles Intl 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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Wed 12/2

5:45 a.m.-11:41 a.m.

1 stop5h 56m

Washington, D.C. Dulles Intl

Tue 18/2

6:02 a.m.-2:50 p.m.

2 stops8h 48m

C$ 917

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Wed 12/2

3:25 p.m.-9:21 p.m.

1 stop5h 56m

Washington, D.C. Dulles Intl

Tue 18/2

10:35 a.m.-2:50 p.m.

1 stop4h 15m

C$ 921

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Sat 8/2

9:55 a.m.-4:26 p.m.

1 stop6h 31m

C$ 513

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

Sat 8/2

5:45 a.m.-11:47 a.m.

2 stops6h 02m

C$ 530

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/1

Best time to book a flight from London to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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.

Travel insights for flights from London to Dulles Intl

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

What is the cheapest month to book a flight from London, Ontario to Washington, D.C. Dulles Intl Airport?

Currently, February is the cheapest month in which you can book a flight from London, Ontario to Washington, D.C. Dulles Intl Airport (average of C$ 256). Flying from London, Ontario to Washington, D.C. Dulles Intl Airport 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 Dulles Intl by month

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

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

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

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated 17 January 2025.
United Airlines
7.4
Good
8,965 reviews
Check prices

Crew

8.1

Comfort

7.3

Food

6.7

Overall

7.4

Boarding

7.7

Entertainment

7.1

Reviews

1 / 10

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

United Airlines
7.4
Good
8,965 reviews
United Airlines
7.4
Good
8,965 reviews
Check prices

Crew

8.1

Comfort

7.3

Food

6.7

Overall

7.4

Boarding

7.7

Entertainment

7.1

Reviews

1 / 10

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Related info for your journey

Find useful and relevant information for your journey from London to Dulles Intl. 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. Dulles Intl?

    Most people fly from London (YXU) if they book a flight from London to Washington, D.C. Dulles Intl. On average, London has 0 outbound flights to Washington, D.C. Dulles Intl per day from 0 airlines. London is conveniently located just 8.6 km from London’s city centre.

  • What is the cheapest airline to fly from London, Ontario to Washington, D.C. Dulles Intl Airport round-trip?

    According to our current data, United Airlines (C$ 917), offers the cheapest pricing from London, Ontario to Washington, D.C. Dulles Intl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to Dulles Intl 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. Dulles Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from London, Ontario to Washington, D.C. Dulles Intl Airport (average of C$ 256). Flying from London, Ontario to Washington, D.C. Dulles Intl Airport 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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How does Cheapflights help users find flights from London to Dulles Intl?

Deals for London to Dulles Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to Dulles Intl from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Dulles Intl, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on London to Dulles Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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