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$ 510 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.

6:10 a.m. - 6:45 p.m.YXU London-SEA Seattle/Tacoma Intl

15h 35m1 stop Calgary

7:35 p.m. - 5:20 a.m.SEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

C$ 510WestJet

Wed, 21 Oct - Thu, 22 Oct

6:10 a.m. - 6:45 p.m.YXU London-SEA Seattle/Tacoma Intl

15h 35m1 stop Calgary

7:35 p.m. - 5:20 a.m.SEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

C$ 609WestJet

Wed, 21 Oct - Thu, 22 Oct

6:10 a.m. - 7:08 a.m.YXU London-SEA Seattle/Tacoma Intl

27h 58m2 stops Calgary Vancouver Intl

5:58 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

8h 37m1 stop Calgary

C$ 825Multiple Airlines

Sun, 25 Oct - Tue, 17 Nov

6:10 a.m. - 6:45 p.m.YXU London-SEA Seattle/Tacoma Intl

15h 35m1 stop Calgary

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

12h 05m1 stop Calgary

C$ 832WestJet

Fri, 23 Oct - Tue, 17 Nov

6:10 a.m. - 4:04 p.m.YXU London-SEA Seattle/Tacoma Intl

12h 54m2 stops Calgary San Francisco

5:58 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

8h 37m1 stop Calgary

C$ 851Multiple Airlines

Sat, 24 Oct - Wed, 18 Nov

6:10 a.m. - 8:20 a.m.YXU London-SEA Seattle/Tacoma Intl

29h 10m2 stops Calgary San Francisco

5:58 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

8h 37m1 stop Calgary

C$ 862Multiple Airlines

Wed, 21 Oct - Tue, 17 Nov

6:10 a.m. - 7:08 a.m.YXU London-SEA Seattle/Tacoma Intl

27h 58m2 stops Calgary Vancouver Intl

5:58 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

8h 37m1 stop Calgary

C$ 880Multiple Airlines

Sun, 25 Oct - Mon, 16 Nov

3:30 p.m. - 9:04 p.m.YXU London-SEA Seattle/Tacoma Intl

8h 34m1 stop Toronto Pearson Intl

10:10 a.m. - 9:52 p.m.SEA Seattle/Tacoma Intl-YXU London

8h 42m2 stops Vancouver Intl Toronto Pearson Intl

C$ 888Air Canada

Thu, 22 Oct - Mon, 16 Nov

6:10 a.m. - 7:08 a.m.YXU London-SEA Seattle/Tacoma Intl

27h 58m2 stops Calgary Vancouver Intl

5:58 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

8h 37m1 stop Calgary

C$ 892Multiple Airlines

Tue, 20 Oct - Tue, 17 Nov

3:30 p.m. - 10:47 p.m.YXU London-SEA Seattle/Tacoma Intl

10h 17m2 stops Toronto Pearson Intl Vancouver Intl

8:40 a.m. - 9:52 p.m.SEA Seattle/Tacoma Intl-YXU London

10h 12m2 stops Vancouver Intl Toronto Pearson Intl

C$ 899Air Canada

Thu, 22 Oct - Mon, 16 Nov

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

WestJet flights from London, Ontario to State of Washington

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

WestJet

21 Oct

YXU6:10 a.m.London

15h 35m

1 stop

SEA6:45 p.m.Seattle/Tacoma Intl

22 Oct

SEA7:35 p.m.Seattle/Tacoma Intl

6h 45m

1 stop

YXU5:20 a.m.London

C$ 510

WestJet

21 Oct

YXU6:10 a.m.London

15h 35m

1 stop

SEA6:45 p.m.Seattle/Tacoma Intl

22 Oct

SEA7:35 p.m.Seattle/Tacoma Intl

6h 45m

1 stop

YXU5:20 a.m.London

C$ 609

WestJet

23 Oct

YXU6:10 a.m.London

15h 35m

1 stop

SEA6:45 p.m.Seattle/Tacoma Intl

17 Nov

SEA2:30 p.m.Seattle/Tacoma Intl

12h 05m

1 stop

YXU5:35 a.m.London

C$ 832

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

22 Oct

YXU3:30 p.m.London

8h 34m

1 stop

SEA9:04 p.m.Seattle/Tacoma Intl

16 Nov

SEA10:10 a.m.Seattle/Tacoma Intl

8h 42m

2 stops

YXU9:52 p.m.London

C$ 888

Air Canada

22 Oct

YXU3:30 p.m.London

10h 17m

2 stops

SEA10:47 p.m.Seattle/Tacoma Intl

16 Nov

SEA8:40 a.m.Seattle/Tacoma Intl

10h 12m

2 stops

YXU9:52 p.m.London

C$ 899

Air Canada

12 Nov

YXU5:30 a.m.London

12h 07m

2 stops

SEA2:37 p.m.Seattle/Tacoma Intl

14 Nov

SEA7:05 p.m.Seattle/Tacoma Intl

16h 37m

2 stops

YXU2:42 p.m.London

C$ 909

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

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Wed 21/10

6:10 a.m.-6:45 p.m.

1 stop15h 35m

Seattle/Tacoma Intl

Thu 22/10

7:35 p.m.-5:20 a.m.

1 stop6h 45m

C$ 510

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Wed 21/10

6:10 a.m.-6:45 p.m.

1 stop15h 35m

Seattle/Tacoma Intl

Thu 22/10

7:35 p.m.-5:20 a.m.

1 stop6h 45m

C$ 609

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Sun 25/10

6:10 a.m.-7:08 a.m.

2 stops27h 58m

Seattle/Tacoma Intl

Tue 17/11

5:58 p.m.-5:35 a.m.

1 stop8h 37m

C$ 825

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Fri 23/10

6:10 a.m.-6:45 p.m.

1 stop15h 35m

Seattle/Tacoma Intl

Tue 17/11

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

1 stop12h 05m

C$ 832

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Sat 24/10

6:10 a.m.-4:04 p.m.

2 stops12h 54m

Seattle/Tacoma Intl

Wed 18/11

5:58 p.m.-5:35 a.m.

1 stop8h 37m

C$ 851

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Wed 21/10

6:10 a.m.-8:20 a.m.

2 stops29h 10m

Seattle/Tacoma Intl

Tue 17/11

5:58 p.m.-5:35 a.m.

1 stop8h 37m

C$ 862

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Sun 25/10

6:10 a.m.-7:08 a.m.

2 stops27h 58m

Seattle/Tacoma Intl

Mon 16/11

5:58 p.m.-5:35 a.m.

1 stop8h 37m

C$ 880

Quickest round-trip

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Thu 22/10

3:30 p.m.-9:04 p.m.

1 stop8h 34m

Seattle/Tacoma Intl

Mon 16/11

10:10 a.m.-9:52 p.m.

2 stops8h 42m

C$ 888

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Tue 20/10

6:10 a.m.-7:08 a.m.

2 stops27h 58m

Seattle/Tacoma Intl

Tue 17/11

5:58 p.m.-5:35 a.m.

1 stop8h 37m

C$ 892

LondonSeattle

YXU London - SEA Seattle/Tacoma Intl

YXUSEA

London

Thu 22/10

3:30 p.m.-10:47 p.m.

2 stops10h 17m

Seattle/Tacoma Intl

Mon 16/11

8:40 a.m.-9:52 p.m.

2 stops10h 12m

C$ 899

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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

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 36% 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$ 562
Fastest flight time	15h 35m
Direct flights	None

The best one-way flight to State of Washington from London, Ontario in the past 72 hours is C$ 562. The best round-trip flight deal from London, Ontario to State of Washington found on momondo in the last 72 hours is C$ 510.

The fastest flight from London, Ontario to State of Washington takes 15h 35m

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.