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 many operators does momondo search for flights from London Airport to Washington?

There is 1 operator available for flights from London Airport to Washington as of June 2026.

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$ 309 Cheap Flights from London, Ontario to Washington in 2026

Find the cheapest flights from London, Ontario to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

YXU

SEA

15h 35m

1 stop

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

SEA

YXU

6h 45m

1 stop

C$ 463WestJet

Thu, 8 Oct - Thu, 22 Oct

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

YXU

SEA

15h 35m

1 stop

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

SEA

YXU

6h 45m

1 stop

C$ 474WestJet

Wed, 7 Oct - Wed, 21 Oct

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

YXU

SEA

15h 35m

1 stop

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

SEA

YXU

6h 45m

1 stop

C$ 492WestJet

Wed, 9 Sep - Thu, 10 Sep

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

YXU

SEA

15h 35m

1 stop

3:10 p.m. - 6:15 p.m.

SEA

YXU

24h 05m

1 stop

C$ 499WestJet

Wed, 21 Oct - Wed, 25 Nov

5:55 p.m. - 9:40 a.m.

YXU

SEA

18h 45m

1 stop

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

SEA

YXU

6h 45m

1 stop

C$ 505WestJet

Fri, 24 Jul - Sat, 1 Aug

6:20 p.m. - 9:31 a.m.

YXU

PDX

18h 11m

2 stops

7:45 p.m. - 9:17 a.m.

PDX

YXU

10h 32m

2 stops

C$ 853Air Canada

Fri, 10 Jul - Tue, 14 Jul

6:20 p.m. - 9:31 a.m.

YXU

PDX

18h 11m

2 stops

7:45 p.m. - 9:17 a.m.

PDX

YXU

10h 32m

2 stops

C$ 854Air Canada

Fri, 10 Jul - Tue, 14 Jul

6:20 p.m. - 9:34 a.m.

YXU

PDX

18h 14m

2 stops

11:16 a.m. - 9:17 a.m.

PDX

YXU

19h 01m

2 stops

C$ 873United Airlines

Fri, 10 Jul - Tue, 14 Jul

8:40 p.m. - 8:49 p.m.

YXU

PDX

27h 09m

2 stops

2:30 p.m. - 5:20 a.m.

PDX

YXU

11h 50m

1 stop

C$ 908Multiple Airlines

Fri, 7 Aug - Fri, 14 Aug

3:30 p.m. - 11:13 p.m.

YXU

PDX

10h 43m

2 stops

3:43 p.m. - 5:42 p.m.

PDX

YXU

22h 59m

3 stops

C$ 927United Airlines

Fri, 7 Aug - Fri, 14 Aug

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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

21 Oct

YXU3:30 p.m.London

8h 34m

1 stop

SEA9:04 p.m.Seattle/Tacoma Intl

24 Oct

SEA5:40 a.m.Seattle/Tacoma Intl

13h 00m

2 stops

YXU9:40 p.m.London

C$ 678

Air Canada

31 Oct

YXU3:25 p.m.London

8h 34m

1 stop

SEA8:59 p.m.Seattle/Tacoma Intl

4 Nov

SEA8:40 a.m.Seattle/Tacoma Intl

10h 12m

2 stops

YXU9:52 p.m.London

C$ 687

Air Canada

31 Oct

YXU3:25 p.m.London

8h 34m

1 stop

SEA8:59 p.m.Seattle/Tacoma Intl

4 Nov

SEA8:40 a.m.Seattle/Tacoma Intl

10h 12m

2 stops

YXU9:52 p.m.London

C$ 690

WestJet flights from London, Ontario to State of Washington

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

WestJet

8 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$ 463

WestJet

7 Oct

YXU6:10 a.m.London

15h 35m

1 stop

SEA6:45 p.m.Seattle/Tacoma Intl

21 Oct

SEA7:35 p.m.Seattle/Tacoma Intl

6h 45m

1 stop

YXU5:20 a.m.London

C$ 474

WestJet

9 Sep

YXU6:10 a.m.London

15h 35m

1 stop

SEA6:45 p.m.Seattle/Tacoma Intl

10 Sep

SEA7:35 p.m.Seattle/Tacoma Intl

6h 45m

1 stop

YXU5:20 a.m.London

C$ 492

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 - SEA

YXUSEA

London

Thu 8/10

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$ 463

LondonSeattle

YXU - SEA

YXUSEA

London

Wed 7/10

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

1 stop15h 35m

Seattle/Tacoma Intl

Wed 21/10

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

1 stop6h 45m

C$ 474

LondonSeattle

YXU - SEA

YXUSEA

London

Wed 9/9

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

1 stop15h 35m

Seattle/Tacoma Intl

Thu 10/9

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

1 stop6h 45m

C$ 492

LondonSeattle

YXU - SEA

YXUSEA

London

Wed 21/10

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

1 stop15h 35m

Seattle/Tacoma Intl

Wed 25/11

3:10 p.m.-6:15 p.m.

1 stop24h 05m

C$ 499

LondonSeattle

YXU - SEA

YXUSEA

London

Fri 24/7

5:55 p.m.-9:40 a.m.

1 stop18h 45m

Seattle/Tacoma Intl

Sat 1/8

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

1 stop6h 45m

C$ 505

LondonPortland

YXU - PDX

YXUPDX

London

Fri 10/7

6:20 p.m.-9:31 a.m.

2 stops18h 11m

Portland

Tue 14/7

7:45 p.m.-9:17 a.m.

2 stops10h 32m

C$ 853

LondonPortland

YXU - PDX

YXUPDX

London

Fri 10/7

6:20 p.m.-9:31 a.m.

2 stops18h 11m

Portland

Tue 14/7

7:45 p.m.-9:17 a.m.

2 stops10h 32m

C$ 854

LondonPortland

YXU - PDX

YXUPDX

London

Fri 10/7

6:20 p.m.-9:34 a.m.

2 stops18h 14m

Portland

Tue 14/7

11:16 a.m.-9:17 a.m.

2 stops19h 01m

C$ 873

LondonPortland

YXU - PDX

YXUPDX

London

Fri 7/8

8:40 p.m.-8:49 p.m.

2 stops27h 09m

Portland

Fri 14/8

2:30 p.m.-5:20 a.m.

1 stop11h 50m

C$ 908

LondonPortland

YXU - PDX

YXUPDX

London

Fri 7/8

3:30 p.m.-11:13 p.m.

2 stops10h 43m

Portland

Fri 14/8

3:43 p.m.-5:42 p.m.

3 stops22h 59m

C$ 927

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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?

Air Canada, United Airlines, and Delta 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 37% 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

Fastest flight time	8h 34m
Direct flights	None

The fastest flight from London, Ontario to State of Washington takes 8h 34m

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 many operators does momondo search for flights from London Airport to Washington?
There is 1 operator available for flights from London Airport to Washington as of June 2026.
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.

Best airlines flying from London, Ontario to State of Washington

Compare and see reviews for airlines that fly from London, Ontario to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom C$ 279	Free Cancellation	Rating 7.2 3,385 reviews		Search WestJet flights

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.