When did momondo last update prices for flights from London Airport to Washington?

Prices for flights from London Airport to Washington are refreshed on a daily basis.

How old do you have to be to fly from London Airport to Washington?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to Washington.

What documentation or ID do you need to fly to Washington?

The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

C$ 448 Cheap Flights from London, Ontario to Washington in 2026/27

Find the cheapest flights from London, Ontario to Washington

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:40 a.m. - 1:40 p.m.YXU London-SEA Seattle/Tacoma Intl

10h 00m1 stop Calgary

2:30 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

12h 05m1 stop Calgary

C$ 448WestJet

Fri, 5 Feb - Mon, 8 Feb

6:40 a.m. - 1:40 p.m.YXU London-SEA Seattle/Tacoma Intl

10h 00m1 stop Calgary

2:30 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

12h 05m1 stop Calgary

C$ 468WestJet

Fri, 5 Feb - Mon, 8 Feb

6:40 a.m. - 1:40 p.m.YXU London-SEA Seattle/Tacoma Intl

10h 00m1 stop Calgary

2:30 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

12h 05m1 stop Calgary

C$ 612WestJet

Fri, 11 Dec - Sun, 13 Dec

6:40 a.m. - 1:40 p.m.YXU London-SEA Seattle/Tacoma Intl

10h 00m1 stop Calgary

2:40 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

35h 55m2 stops Los Angeles Calgary

C$ 625WestJet

Fri, 5 Feb - Mon, 8 Feb

6:40 a.m. - 1:40 p.m.YXU London-SEA Seattle/Tacoma Intl

10h 00m1 stop Calgary

2:40 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

35h 55m2 stops Los Angeles Calgary

C$ 645WestJet

Fri, 5 Feb - Mon, 8 Feb

6:40 a.m. - 1:40 p.m.YXU London-SEA Seattle/Tacoma Intl

10h 00m1 stop Calgary

2:40 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

35h 55m2 stops Los Angeles Calgary

C$ 684WestJet

Fri, 5 Feb - Tue, 9 Feb

6:40 a.m. - 1:40 p.m.YXU London-SEA Seattle/Tacoma Intl

10h 00m1 stop Calgary

2:40 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

35h 55m2 stops Los Angeles Calgary

C$ 696WestJet

Fri, 5 Feb - Mon, 8 Feb

6:40 a.m. - 4:55 p.m.YXU London-SEA Seattle/Tacoma Intl

13h 15m2 stops Calgary Vancouver Intl

2:40 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

35h 55m2 stops Los Angeles Calgary

C$ 702WestJet

Fri, 5 Feb - Mon, 8 Feb

6:40 a.m. - 1:40 p.m.YXU London-SEA Seattle/Tacoma Intl

10h 00m1 stop Calgary

2:40 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

35h 55m2 stops Los Angeles Calgary

C$ 703WestJet

Fri, 5 Feb - Tue, 9 Feb

6:40 a.m. - 4:55 p.m.YXU London-SEA Seattle/Tacoma Intl

13h 15m2 stops Calgary Vancouver Intl

2:40 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

35h 55m2 stops Los Angeles Calgary

C$ 722WestJet

Fri, 5 Feb - Mon, 8 Feb

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Air Canada flights from London, Ontario to State of Washington

Our best Air Canada deals on London, Ontario to State of Washington flight tickets

Air Canada

4 Dec

YXU5:30 a.m.London

12h 07m

2 stops

SEA2:37 p.m.Seattle/Tacoma Intl

7 Dec

SEA7:05 p.m.Seattle/Tacoma Intl

10h 32m

2 stops

YXU8:37 a.m.London

C$ 948

Air Canada

4 Dec

YXU5:30 a.m.London

12h 07m

2 stops

SEA2:37 p.m.Seattle/Tacoma Intl

7 Dec

SEA7:05 p.m.Seattle/Tacoma Intl

10h 32m

2 stops

YXU8:37 a.m.London

C$ 950

Air Canada

4 Dec

YXU5:30 a.m.London

12h 07m

2 stops

SEA2:37 p.m.Seattle/Tacoma Intl

7 Dec

SEA7:05 p.m.Seattle/Tacoma Intl

10h 32m

2 stops

YXU8:37 a.m.London

C$ 954

WestJet flights from London, Ontario to State of Washington

Our best WestJet deals on London, Ontario to State of Washington flight tickets

WestJet

5 Feb

YXU6:40 a.m.London

10h 00m

1 stop

SEA1:40 p.m.Seattle/Tacoma Intl

8 Feb

SEA2:30 p.m.Seattle/Tacoma Intl

12h 05m

1 stop

YXU5:35 a.m.London

C$ 448

WestJet

5 Feb

YXU6:40 a.m.London

10h 00m

1 stop

SEA1:40 p.m.Seattle/Tacoma Intl

8 Feb

SEA2:30 p.m.Seattle/Tacoma Intl

12h 05m

1 stop

YXU5:35 a.m.London

C$ 468

WestJet

11 Dec

YXU6:40 a.m.London

10h 00m

1 stop

SEA1:40 p.m.Seattle/Tacoma Intl

13 Dec

SEA2:30 p.m.Seattle/Tacoma Intl

12h 05m

1 stop

YXU5:35 a.m.London

C$ 612

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Fri 5/2

6:40 a.m.-1:40 p.m.

1 stop10h 00m

Seattle/Tacoma Intl

Mon 8/2

2:30 p.m.-5:35 a.m.

1 stop12h 05m

C$ 448

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Fri 5/2

6:40 a.m.-1:40 p.m.

1 stop10h 00m

Seattle/Tacoma Intl

Mon 8/2

2:30 p.m.-5:35 a.m.

1 stop12h 05m

C$ 468

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Fri 11/12

6:40 a.m.-1:40 p.m.

1 stop10h 00m

Seattle/Tacoma Intl

Sun 13/12

2:30 p.m.-5:35 a.m.

1 stop12h 05m

C$ 612

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Fri 5/2

6:40 a.m.-1:40 p.m.

1 stop10h 00m

Seattle/Tacoma Intl

Mon 8/2

2:40 p.m.-5:35 a.m.

2 stops35h 55m

C$ 625

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Fri 5/2

6:40 a.m.-1:40 p.m.

1 stop10h 00m

Seattle/Tacoma Intl

Mon 8/2

2:40 p.m.-5:35 a.m.

2 stops35h 55m

C$ 645

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Fri 5/2

6:40 a.m.-1:40 p.m.

1 stop10h 00m

Seattle/Tacoma Intl

Tue 9/2

2:40 p.m.-5:35 a.m.

2 stops35h 55m

C$ 684

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Fri 5/2

6:40 a.m.-1:40 p.m.

1 stop10h 00m

Seattle/Tacoma Intl

Mon 8/2

2:40 p.m.-5:35 a.m.

2 stops35h 55m

C$ 696

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Fri 5/2

6:40 a.m.-4:55 p.m.

2 stops13h 15m

Seattle/Tacoma Intl

Mon 8/2

2:40 p.m.-5:35 a.m.

2 stops35h 55m

C$ 702

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Fri 5/2

6:40 a.m.-1:40 p.m.

1 stop10h 00m

Seattle/Tacoma Intl

Tue 9/2

2:40 p.m.-5:35 a.m.

2 stops35h 55m

C$ 703

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Fri 5/2

6:40 a.m.-4:55 p.m.

2 stops13h 15m

Seattle/Tacoma Intl

Mon 8/2

2:40 p.m.-5:35 a.m.

2 stops35h 55m

C$ 722

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from London, Ontario to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from London to Washington?

Delta, Air Canada, and United Airlines are the most popular carriers operating from London to Washington

Which airlines fly to State of Washington?

Alaska Airlines, Air Canada and WestJet are the top three most popular airlines that fly to State of Washington from London, Ontario according to our data. Alaska Airlines is the first choice among our users, with 34% of people opting to fly with this airline when travelling to State of Washington. Keep in mind that there are 5 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

Cheap London, Ontario to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London, Ontario to State of Washington

Best price found	C$ 759
Fastest flight time	10h 00m
Direct flights	None

The best one-way flight to State of Washington from London, Ontario in the past 72 hours is C$ 759. The best round-trip flight deal from London, Ontario to State of Washington found on momondo in the last 72 hours is C$ 448.

The fastest flight from London, Ontario to State of Washington takes 10h 00m

There are no direct flights from London, Ontario to State of Washington. There are no popular flight routes from London, Ontario to State of Washington.

Search flight deals

Frequently asked questions about flying from London, Ontario to Washington

When did momondo last update prices for flights from London Airport to Washington?
Prices for flights from London Airport to Washington are refreshed on a daily basis.
How old do you have to be to fly from London Airport to Washington?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to Washington.
What documentation or ID do you need to fly to Washington?
The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from London to Washington?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Washington . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from London to Washington with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Washington?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington from London.

I’m not ready to book a flight from London to Washington right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Washington now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington and let you know when they change.