Which airlines fly to London, Ontario?

Air Canada, Porter Airlines and WestJet are the top three most popular airlines that fly to London, Ontario from United States according to our data. Air Canada is the first choice among our users, with 42% of people opting to fly with this airline when travelling to London, Ontario. Keep in mind that there are 9 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to London, Ontario?

The average flight duration from United States to London, Ontario depends on which airport you fly into and out of. Flying from New York to Toronto Pearson Intl Airport is 1h 45m on average, while flying from Boston to Toronto Pearson Intl Airport is 1h 53m on average. Toronto Pearson Intl Airport is the most popular airport in London, Ontario.

What is the cheapest airline that flies from United States to London?

Air Canada, United Airlines, and WestJet are the most popular carriers operating from United States to London

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

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

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

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 United States to London Airport.

What documentation or ID do you need to fly to London Airport?

The travel and health documents required for your trip to London Airport 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 London Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 262 Cheap Flights from the United States to London in 2026

1 adult

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Find the cheapest flights from the United States to London

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One-way

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Recent round-trip flight deals from the United States to London

Enter your travel dates to find the best prices.

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

ORD

YXU

10h 50m

1 stop

6:10 a.m. - 4:40 p.m.

YXU

ORD

11h 30m

1 stop

C$ 382WestJet

Mon, 25 May - Thu, 28 May

5:30 p.m. - 5:25 a.m.

ORD

YXU

10h 55m

1 stop

6:15 a.m. - 4:40 p.m.

YXU

ORD

11h 25m

1 stop

C$ 392WestJet

Mon, 25 May - Thu, 28 May

5:45 a.m. - 9:21 p.m.

SEA

YXU

12h 36m

2 stops

5:40 p.m. - 10:16 p.m.

YXU

SEA

7h 36m

1 stop

C$ 423Air Canada

Thu, 26 Feb - Sat, 28 Feb

5:45 a.m. - 9:21 p.m.

SEA

YXU

12h 36m

2 stops

9:25 a.m. - 7:16 p.m.

YXU

SEA

12h 51m

2 stops

C$ 430Air Canada

Thu, 26 Feb - Sat, 28 Feb

8:00 a.m. - 9:21 p.m.

SEA

YXU

10h 21m

1 stop

5:40 p.m. - 10:16 p.m.

YXU

SEA

7h 36m

1 stop

C$ 449Air Canada

Thu, 26 Feb - Sat, 28 Feb

8:00 a.m. - 9:21 p.m.

SEA

YXU

10h 21m

1 stop

5:10 a.m. - 2:31 p.m.

YXU

SEA

12h 21m

2 stops

C$ 455Air Canada

Thu, 26 Feb - Sat, 28 Feb

5:35 p.m. - 6:35 a.m.

JFK

YXU

13h 00m

1 stop

8:10 p.m. - 1:13 a.m.

YXU

JFK

29h 03m

2 stops

C$ 545Multiple Airlines

Mon, 23 Mar - Mon, 30 Mar

8:00 a.m. - 9:21 p.m.

SEA

YXU

10h 21m

1 stop

5:10 a.m. - 10:37 p.m.

YXU

SEA

20h 27m

2 stops

C$ 587United Airlines

Fri, 27 Mar - Fri, 3 Apr

8:00 a.m. - 9:21 p.m.

SEA

YXU

10h 21m

1 stop

9:25 a.m. - 9:53 p.m.

YXU

SEA

15h 28m

1 stop

C$ 599United Airlines

Fri, 27 Mar - Fri, 3 Apr

8:55 a.m. - 6:35 a.m.

EWR

YXU

21h 40m

3 stops

9:40 a.m. - 1:33 p.m.

YXU

EWR

3h 53m

1 stop

C$ 682Multiple Airlines

Thu, 5 Mar - Wed, 11 Mar

United Airlines flights from United States to London, Ontario

Our best United Airlines deals on United States to London, Ontario flight tickets

United Airlines

27 Mar

SEA8:00 a.m.Seattle/Tacoma Intl

10h 21m

1 stop

YXU9:21 p.m.London

3 Apr

YXU5:10 a.m.London

20h 27m

2 stops

SEA10:37 p.m.Seattle/Tacoma Intl

C$ 587

United Airlines

27 Mar

SEA8:00 a.m.Seattle/Tacoma Intl

10h 21m

1 stop

YXU9:21 p.m.London

3 Apr

YXU9:25 a.m.London

15h 28m

1 stop

SEA9:53 p.m.Seattle/Tacoma Intl

C$ 599

United Airlines

27 Mar

SEA11:59 p.m.Seattle/Tacoma Intl

14h 06m

2 stops

YXU5:05 p.m.London

3 Apr

YXU5:10 a.m.London

20h 27m

2 stops

SEA10:37 p.m.Seattle/Tacoma Intl

C$ 745

Air Canada flights from United States to London, Ontario

Our best Air Canada deals on United States to London, Ontario flight tickets

Air Canada

26 Feb

SEA5:45 a.m.Seattle/Tacoma Intl

12h 36m

2 stops

YXU9:21 p.m.London

28 Feb

YXU5:40 p.m.London

7h 36m

1 stop

SEA10:16 p.m.Seattle/Tacoma Intl

C$ 423

Air Canada

26 Feb

SEA5:45 a.m.Seattle/Tacoma Intl

12h 36m

2 stops

YXU9:21 p.m.London

28 Feb

YXU9:25 a.m.London

12h 51m

2 stops

SEA7:16 p.m.Seattle/Tacoma Intl

C$ 430

Air Canada

26 Feb

SEA8:00 a.m.Seattle/Tacoma Intl

10h 21m

1 stop

YXU9:21 p.m.London

28 Feb

YXU5:40 p.m.London

7h 36m

1 stop

SEA10:16 p.m.Seattle/Tacoma Intl

C$ 449

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 25/5

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

1 stop10h 50m

London

Thu 28/5

6:10 a.m.-4:40 p.m.

1 stop11h 30m

C$ 382

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 25/5

5:30 p.m.-5:25 a.m.

1 stop10h 55m

London

Thu 28/5

6:15 a.m.-4:40 p.m.

1 stop11h 25m

C$ 392

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Thu 26/2

5:45 a.m.-9:21 p.m.

2 stops12h 36m

London

Sat 28/2

5:40 p.m.-10:16 p.m.

1 stop7h 36m

C$ 423

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Thu 26/2

5:45 a.m.-9:21 p.m.

2 stops12h 36m

London

Sat 28/2

9:25 a.m.-7:16 p.m.

2 stops12h 51m

C$ 430

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Thu 26/2

8:00 a.m.-9:21 p.m.

1 stop10h 21m

London

Sat 28/2

5:40 p.m.-10:16 p.m.

1 stop7h 36m

C$ 449

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Thu 26/2

8:00 a.m.-9:21 p.m.

1 stop10h 21m

London

Sat 28/2

5:10 a.m.-2:31 p.m.

2 stops12h 21m

C$ 455

New YorkLondon

JFK - YXU

JFKYXU

New York John F Kennedy Intl

Mon 23/3

5:35 p.m.-6:35 a.m.

1 stop13h 00m

London

Mon 30/3

8:10 p.m.-1:13 a.m.

2 stops29h 03m

C$ 545

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Fri 27/3

8:00 a.m.-9:21 p.m.

1 stop10h 21m

London

Fri 3/4

5:10 a.m.-10:37 p.m.

2 stops20h 27m

C$ 587

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Fri 27/3

8:00 a.m.-9:21 p.m.

1 stop10h 21m

London

Fri 3/4

9:25 a.m.-9:53 p.m.

1 stop15h 28m

C$ 599

NewarkLondon

EWR - YXU

EWRYXU

Newark

Thu 5/3

8:55 a.m.-6:35 a.m.

3 stops21h 40m

London

Wed 11/3

9:40 a.m.-1:33 p.m.

1 stop3h 53m

C$ 682

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 United States to London, Ontario

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

Prices

Airlines

Other information

What is the cheapest United States to London flight route?

Fly from Orlando to London for the best United States - London flight prices

What cabin class options are available on United States to London flights?

There is only 1 cabin class available to choose from on United States to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United States to London, Ontario flights?

You could potentially save up to 11% on your flight if you consider stops on a United States to London, Ontario flight.

Cheap United States to London, Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to London, Ontario

Fastest flight time	4h 03m
Direct flights	None

The fastest flight from United States to London, Ontario takes 4h 03m

There are no direct flights from United States to London, Ontario. There are no popular flight routes from United States to London, Ontario.

Search flight deals

When did momondo last update prices for flights from United States to London Airport?
Prices for flights from United States to London Airport were last updated today.
How old do you have to be to fly from United States to London Airport?
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 United States to London Airport.
What documentation or ID do you need to fly to London Airport?
The travel and health documents required for your trip to London Airport 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 London Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from United States to London, Ontario?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from United States to London, Ontario is Boeing 737 MAX 8 (80.00% of total bookings). The next most popular plane model is Boeing 737-800 Passenger/BBJ2 (winglets) (20.00%).

Grand Bend

Port Stanley

Why use momondo?

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

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

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

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

How can momondo help me find flights from United States to London?

momondo provides multiple filters to help you find the best flight to London from United States. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of United States to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.