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

Prices for flights from London Airport to Washington were last updated today.

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 travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$218 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 am - 6:45 pm

YXU

SEA

15h 35m

1 stop

7:35 pm - 5:20 am

SEA

YXU

6h 45m

1 stop

$326WestJet

Thu, Oct 8 - Thu, Oct 22

6:10 am - 6:45 pm

YXU

SEA

15h 35m

1 stop

7:35 pm - 5:20 am

SEA

YXU

6h 45m

1 stop

$334WestJet

Wed, Oct 7 - Wed, Oct 21

6:10 am - 6:45 pm

YXU

SEA

15h 35m

1 stop

7:35 pm - 5:20 am

SEA

YXU

6h 45m

1 stop

$347WestJet

Wed, Sep 9 - Thu, Sep 10

6:10 am - 6:45 pm

YXU

SEA

15h 35m

1 stop

7:35 pm - 5:20 am

SEA

YXU

6h 45m

1 stop

$369WestJet

Fri, Oct 9 - Fri, Oct 23

6:10 am - 6:45 pm

YXU

SEA

15h 35m

1 stop

7:35 pm - 5:20 am

SEA

YXU

6h 45m

1 stop

$373WestJet

Tue, Oct 6 - Mon, Oct 19

6:10 am - 6:45 pm

YXU

SEA

15h 35m

1 stop

7:35 pm - 5:20 am

SEA

YXU

6h 45m

1 stop

$381WestJet

Mon, Oct 5 - Fri, Oct 23

6:20 pm - 9:31 am

YXU

PDX

18h 11m

2 stops

7:45 pm - 9:17 am

PDX

YXU

10h 32m

2 stops

$601Air Canada

Fri, Jul 10 - Tue, Jul 14

6:20 pm - 9:31 am

YXU

PDX

18h 11m

2 stops

7:45 pm - 9:17 am

PDX

YXU

10h 32m

2 stops

$602Air Canada

Fri, Jul 10 - Tue, Jul 14

3:30 pm - 11:13 pm

YXU

PDX

10h 43m

2 stops

10:40 pm - 8:32 pm

PDX

YXU

18h 52m

2 stops

$660United Airlines

Fri, Jul 10 - Tue, Jul 14

6:20 pm - 9:31 am

YXU

PDX

18h 11m

2 stops

7:45 pm - 9:17 am

PDX

YXU

10h 32m

2 stops

$677Air Canada

Fri, Jul 10 - Tue, Jul 14

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WestJet flights from London, Ontario to State of Washington

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

WestJet

Oct 8

YXU6:10 amLondon

15h 35m

1 stop

SEA6:45 pmSeattle/Tacoma Intl

Oct 22

SEA7:35 pmSeattle/Tacoma Intl

6h 45m

1 stop

YXU5:20 amLondon

$326

WestJet

Oct 7

YXU6:10 amLondon

15h 35m

1 stop

SEA6:45 pmSeattle/Tacoma Intl

Oct 21

SEA7:35 pmSeattle/Tacoma Intl

6h 45m

1 stop

YXU5:20 amLondon

$334

WestJet

Sep 9

YXU6:10 amLondon

15h 35m

1 stop

SEA6:45 pmSeattle/Tacoma Intl

Sep 10

SEA7:35 pmSeattle/Tacoma Intl

6h 45m

1 stop

YXU5:20 amLondon

$347

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

Oct 31

YXU3:25 pmLondon

8h 34m

1 stop

SEA8:59 pmSeattle/Tacoma Intl

Nov 4

SEA8:40 amSeattle/Tacoma Intl

10h 12m

2 stops

YXU9:52 pmLondon

$484

Air Canada

Oct 31

YXU3:25 pmLondon

8h 34m

1 stop

SEA8:59 pmSeattle/Tacoma Intl

Nov 4

SEA8:40 amSeattle/Tacoma Intl

10h 12m

2 stops

YXU9:52 pmLondon

$486

Air Canada

Aug 19

YXU3:30 pmLondon

8h 37m

1 stop

SEA9:07 pmSeattle/Tacoma Intl

Aug 24

SEA8:00 amSeattle/Tacoma Intl

6h 42m

1 stop

YXU5:42 pmLondon

$505

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 10/8

6:10 am-6:45 pm

1 stop15h 35m

Seattle/Tacoma Intl

Thu 10/22

7:35 pm-5:20 am

1 stop6h 45m

$326

LondonSeattle

YXU - SEA

YXUSEA

London

Wed 10/7

6:10 am-6:45 pm

1 stop15h 35m

Seattle/Tacoma Intl

Wed 10/21

7:35 pm-5:20 am

1 stop6h 45m

$334

LondonSeattle

YXU - SEA

YXUSEA

London

Wed 9/9

6:10 am-6:45 pm

1 stop15h 35m

Seattle/Tacoma Intl

Thu 9/10

7:35 pm-5:20 am

1 stop6h 45m

$347

LondonSeattle

YXU - SEA

YXUSEA

London

Fri 10/9

6:10 am-6:45 pm

1 stop15h 35m

Seattle/Tacoma Intl

Fri 10/23

7:35 pm-5:20 am

1 stop6h 45m

$369

LondonSeattle

YXU - SEA

YXUSEA

London

Tue 10/6

6:10 am-6:45 pm

1 stop15h 35m

Seattle/Tacoma Intl

Mon 10/19

7:35 pm-5:20 am

1 stop6h 45m

$373

LondonSeattle

YXU - SEA

YXUSEA

London

Mon 10/5

6:10 am-6:45 pm

1 stop15h 35m

Seattle/Tacoma Intl

Fri 10/23

7:35 pm-5:20 am

1 stop6h 45m

$381

LondonPortland

YXU - PDX

YXUPDX

London

Fri 7/10

6:20 pm-9:31 am

2 stops18h 11m

Portland

Tue 7/14

7:45 pm-9:17 am

2 stops10h 32m

$601

LondonPortland

YXU - PDX

YXUPDX

London

Fri 7/10

6:20 pm-9:31 am

2 stops18h 11m

Portland

Tue 7/14

7:45 pm-9:17 am

2 stops10h 32m

$602

LondonPortland

YXU - PDX

YXUPDX

London

Fri 7/10

3:30 pm-11:13 pm

2 stops10h 43m

Portland

Tue 7/14

10:40 pm-8:32 pm

2 stops18h 52m

$660

LondonPortland

YXU - PDX

YXUPDX

London

Fri 7/10

6:20 pm-9:31 am

2 stops18h 11m

Portland

Tue 7/14

7:45 pm-9:17 am

2 stops10h 32m

$677

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

What airlines fly to State of Washington?

Air Canada, Alaska Airlines and WestJet are the top three most popular airlines that fly to State of Washington from London, Ontario according to our data. Air Canada is the first choice among our users, with 34% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 6 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 37m
Direct flights	None

The fastest flight from London, Ontario to State of Washington takes 8h 37m

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 were last updated today.
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 travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

Finding the right flight to Washington from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for London to Washington flights to just show those with flexible booking policies.

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

Once you have performed a search for London to Washington flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for London to Washington flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.