Find flights
When to book
Airlines
FAQs

Cheap flights from Washington to London, ON from C$ 558

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YXU
27 Dec — 3 Jan1
1 adult

Cheap flight deals from Washington to London

Discover tips and strategies to find the most affordable flight options for your journey from Washington (USWA) 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 22 December 2024.

Round-trip from

C$ 558
WestJet
  • WestJet
  • 4/2-11/2
  • 2 total stops
  • 46h 19m total
  • Washington to London

Find flight deals from Washington to London

Best flights from Washington to London
Discover carefully curated flight deals from Washington to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 22 December 2024.

Tue 4/23:15 p.m.SEA - YXU
1 stop24h 58mWestJet
Tue 11/28:00 p.m.YXU - SEA
1 stop21h 21mWestJet
Deal found 21/12C$ 558
Tue 4/23:15 p.m.SEA - YXU
1 stop24h 58mMultiple Airlines
Tue 11/28:00 p.m.YXU - SEA
2 stops14h 13mMultiple Airlines
Deal found 21/12C$ 595
Tue 4/25:45 a.m.SEA - YXU
2 stops11h 35mAir Canada
Tue 11/23:25 p.m.YXU - SEA
1 stop9h 05mAir Canada
Deal found 21/12C$ 786
Tue 4/211:17 p.m.SEA - YXU
2 stops12h 33mUnited Airlines
Tue 11/23:25 p.m.YXU - SEA
1 stop9h 05mUnited Airlines
Deal found 21/12C$ 793

Find flights from Washington to London within your budget

Customize your flight search to find flights from Washington 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 629,999 searches. Data last updated 22 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Tue 4/2

3:15 p.m.-7:13 p.m.

1 stop24h 58m

London

Tue 11/2

8:00 p.m.-2:21 p.m.

1 stop21h 21m

C$ 558

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Tue 4/2

3:15 p.m.-7:13 p.m.

1 stop24h 58m

London

Tue 11/2

8:00 p.m.-7:13 a.m.

2 stops14h 13m

C$ 595

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Tue 4/2

5:45 a.m.-8:20 p.m.

2 stops11h 35m

London

Tue 11/2

3:25 p.m.-9:30 p.m.

1 stop9h 05m

C$ 786

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Tue 4/2

11:17 p.m.-2:50 p.m.

2 stops12h 33m

London

Tue 11/2

3:25 p.m.-9:30 p.m.

1 stop9h 05m

C$ 793

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/12

Best time to book a flight from Washington to London

Have a flexible travel schedule? Discover the best time to fly to London from Washington 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 Washington to London

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

What is the cheapest month to book a flight from State of Washington to London, Ontario?

Currently, October is the cheapest month in which you can book a flight from State of Washington to London, Ontario (average of C$ 243). Flying from State of Washington to London, Ontario in March is currently the most expensive (average of C$ 538). 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 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 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.

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 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).

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 22 December 2024.
7.4
Good
9,028 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.7

Reviews

1 / 10

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!

7.4
Good
9,028 reviews
7.4
Good
9,028 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.7

Reviews

1 / 10

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!

7.3
Good
2,812 reviews
7.4
Good
9,028 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.7

Reviews

1 / 10

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!

7.0
Good
8,413 reviews
7.4
Good
9,028 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.7

Reviews

1 / 10

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 Washington 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?

    For a flight from Washington to London, you will be flying into London. London (YXU) is just 8.6 km from the centre of the city.

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

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

  • How can I find direct flights from Washington to London?

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

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

    Yes. Cheapflights offers flight deals from Washington 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.

  • What is the cheapest month to book a flight from State of Washington to London, Ontario?

    Currently, October is the cheapest month in which you can book a flight from State of Washington to London, Ontario (average of C$ 243). Flying from State of Washington to London, Ontario in March is currently the most expensive (average of C$ 538). 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

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 Washington to London

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Washington to London?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from Washington today with Cheapflights!

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

Millions of users choose and trust Cheapflights to book the best flight deals from Washington to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to London from Washington? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.