C$ 183+ Flights from Washington to London, ON | Cheapflights

Cheap flight deals from Washington to London

Round-trip from	C$ 412
One-way from	C$ 183

WestJet

WestJet
10/5-17/5
2 total stops
26h 32m total
Washington to London

WestJet

WestJet
8/5
1 total stop
9h 04m total
Washington to London

Find flight deals from Washington to London

Cheapest flights from Washington to London
Explore the most affordable flight options available from Washington to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.

Sat 10/57:05 a.m.SEA - YXU

1 stop9h 04mWestJet

Sat 17/56:00 a.m.YXU - SEA

1 stop17h 28mWestJet

Deal found 27/3C$ 412

Sat 10/57:05 a.m.SEA - YXU

1 stop9h 04mMultiple Airlines

Sat 17/56:00 a.m.YXU - SEA

3 stops21h 10mMultiple Airlines

Deal found 27/3C$ 573

Sun 11/57:15 p.m.SEA - YXU

2 stops11h 03mAir Canada

Sun 18/59:55 a.m.YXU - SEA

2 stops11h 38mAir Canada

Deal found 27/3C$ 898

Sun 11/57:00 a.m.SEA - YXU

2 stops23h 18mUnited Airlines

Sun 18/53:35 p.m.YXU - SEA

3 stops29h 55mUnited Airlines

Deal found 27/3C$ 1,091

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 28 March 2025.

Sat 10/57:05 a.m.SEA - YXU

1 stop9h 04mWestJet

Sat 17/56:00 a.m.YXU - SEA

1 stop17h 28mWestJet

Deal found 27/3C$ 412

Sat 10/57:05 a.m.SEA - YXU

1 stop9h 04mMultiple Airlines

Sat 17/56:00 a.m.YXU - SEA

3 stops21h 10mMultiple Airlines

Deal found 27/3C$ 573

Sun 11/57:15 p.m.SEA - YXU

2 stops11h 03mAir Canada

Sun 18/59:55 a.m.YXU - SEA

2 stops11h 38mAir Canada

Deal found 27/3C$ 898

Sun 11/57:00 a.m.SEA - YXU

2 stops23h 18mUnited Airlines

Sun 18/53:35 p.m.YXU - SEA

3 stops29h 55mUnited Airlines

Deal found 27/3C$ 1,091

One-way flights from Washington to London
Search for one-way flight options from Washington to London. Find affordable one-way fares based on user searches. Data last updated 28 March 2025.

Thu 8/57:05 a.m.SEA - YXU

1 stop9h 04mWestJet

Deal found 27/3C$ 183

Thu 8/56:00 a.m.SEA - YXU

2 stops20h 14mMultiple Airlines

Deal found 27/3C$ 270

Wed 30/712:20 a.m.SEA - YXU

2 stops11h 37mUnited Airlines

Deal found 27/3C$ 1,325

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sat 10/5

7:05 a.m.-7:09 p.m.

1 stop9h 04m

London

Sat 17/5

6:00 a.m.-8:28 p.m.

1 stop17h 28m

C$ 412

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sat 10/5

7:05 a.m.-7:09 p.m.

1 stop9h 04m

London

Sat 17/5

6:00 a.m.-12:10 a.m.

3 stops21h 10m

C$ 573

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sun 11/5

7:15 p.m.-9:18 a.m.

2 stops11h 03m

London

Sun 18/5

9:55 a.m.-6:33 p.m.

2 stops11h 38m

C$ 898

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sun 11/5

7:00 a.m.-9:18 a.m.

2 stops23h 18m

London

Sun 18/5

3:35 p.m.-6:30 p.m.

3 stops29h 55m

C$ 1,091

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Thu 8/5

7:05 a.m.-7:09 p.m.

1 stop9h 04m

C$ 183

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Thu 8/5

6:00 a.m.-5:14 a.m.

2 stops20h 14m

C$ 270

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Wed 30/7

12:20 a.m.-2:57 p.m.

2 stops11h 37m

C$ 1,325

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/3

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.

Cheapflights Insights

Everything you need to know about your flight from Washington to London

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 December is currently the most expensive (average of C$ 478). 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

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

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

United Airlines

7.4

Good

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

United Airlines

7.4

Good

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??

7.2

Good

United Airlines

7.4

Good

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??

7.0

Good

United Airlines

7.4

Good

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?
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 December is currently the most expensive (average of C$ 478). 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

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Complete your trip

London, Ontario car rentals

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