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 41% 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 50m 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?

WestJet, Air Canada, and Delta 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$ 205 Cheap Flights from the United States to London, Ontario in 2026

1 adult

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Find the cheapest flights from the United States to London

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

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

SEA

YXU

6h 45m

1 stop

5:55 p.m. - 6:45 p.m.

YXU

SEA

27h 50m

1 stop

C$ 379WestJet

Tue, 30 Jun - Tue, 7 Jul

6:00 a.m. - 4:45 p.m.

SFO

YXU

7h 45m

1 stop

6:10 a.m. - 12:00 p.m.

YXU

SFO

8h 50m

1 stop

C$ 399WestJet

Mon, 12 Oct - Wed, 21 Oct

7:10 a.m. - 9:40 p.m.

SFO

YXU

11h 30m

2 stops

5:40 a.m. - 10:39 a.m.

YXU

SFO

7h 59m

1 stop

C$ 463Air Canada

Sun, 11 Oct - Wed, 21 Oct

8:10 a.m. - 9:40 p.m.

SFO

YXU

10h 30m

2 stops

5:40 a.m. - 10:39 a.m.

YXU

SFO

7h 59m

1 stop

C$ 492Air Canada

Tue, 8 Sep - Fri, 11 Sep

8:25 p.m. - 1:50 p.m.

LGA

YXU

17h 25m

2 stops

2:40 p.m. - 7:25 p.m.

YXU

LGA

28h 45m

2 stops

C$ 786Multiple Airlines

Mon, 15 Jun - Sun, 21 Jun

8:25 p.m. - 1:50 p.m.

LGA

YXU

17h 25m

2 stops

2:40 p.m. - 7:25 p.m.

YXU

LGA

28h 45m

2 stops

C$ 821Multiple Airlines

Mon, 15 Jun - Sun, 21 Jun

11:33 a.m. - 5:20 a.m.

SJC

YXU

14h 47m

2 stops

6:10 a.m. - 6:48 p.m.

YXU

SJC

15h 38m

2 stops

C$ 990Delta

Mon, 12 Oct - Wed, 21 Oct

11:33 a.m. - 5:20 a.m.

SJC

YXU

14h 47m

2 stops

6:10 a.m. - 6:48 p.m.

YXU

SJC

15h 38m

2 stops

C$ 991Delta

Mon, 12 Oct - Wed, 21 Oct

8:45 a.m. - 5:43 p.m.

ORD

YXU

7h 58m

2 stops

10:05 a.m. - 2:55 p.m.

YXU

ORD

5h 50m

1 stop

C$ 1,026United Airlines

Tue, 8 Sep - Sat, 12 Sep

10:50 a.m. - 9:40 p.m.

ORD

YXU

9h 50m

2 stops

3:30 p.m. - 11:40 p.m.

YXU

ORD

9h 10m

2 stops

C$ 1,046United Airlines

Tue, 8 Sep - Sat, 12 Sep

Air Canada flights from United States to London, Ontario

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

Air Canada

11 Oct

SFO7:10 a.m.San Francisco

11h 30m

2 stops

YXU9:40 p.m.London

21 Oct

YXU5:40 a.m.London

7h 59m

1 stop

SFO10:39 a.m.San Francisco

C$ 463

Air Canada

8 Sep

SFO8:10 a.m.San Francisco

10h 30m

2 stops

YXU9:40 p.m.London

11 Sep

YXU5:40 a.m.London

7h 59m

1 stop

SFO10:39 a.m.San Francisco

C$ 492

Air Canada

11 Oct

SFO4:35 p.m.San Francisco

13h 45m

2 stops

YXU9:20 a.m.London

21 Oct

YXU6:20 p.m.London

20h 47m

2 stops

SFO12:07 p.m.San Francisco

C$ 511

WestJet flights from United States to London, Ontario

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

WestJet

30 Jun

SEA7:35 p.m.Seattle/Tacoma Intl

6h 45m

1 stop

YXU5:20 a.m.London

7 Jul

YXU5:55 p.m.London

27h 50m

1 stop

SEA6:45 p.m.Seattle/Tacoma Intl

C$ 379

WestJet

12 Oct

SFO6:00 a.m.San Francisco

7h 45m

1 stop

YXU4:45 p.m.London

21 Oct

YXU6:10 a.m.London

8h 50m

1 stop

SFO12:00 p.m.San Francisco

C$ 399

WestJet

9 Aug

SEA7:00 a.m.Seattle/Tacoma Intl

6h 45m

1 stop

YXU4:45 p.m.London

22 Aug

YXU5:55 p.m.London

27h 50m

1 stop

SEA6:45 p.m.Seattle/Tacoma Intl

C$ 422

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

Cheapest round-trip

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Tue 30/6

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

1 stop6h 45m

London

Tue 7/7

5:55 p.m.-6:45 p.m.

1 stop27h 50m

C$ 379

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 12/10

6:00 a.m.-4:45 p.m.

1 stop7h 45m

London

Wed 21/10

6:10 a.m.-12:00 p.m.

1 stop8h 50m

C$ 399

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sun 11/10

7:10 a.m.-9:40 p.m.

2 stops11h 30m

London

Wed 21/10

5:40 a.m.-10:39 a.m.

1 stop7h 59m

C$ 463

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 8/9

8:10 a.m.-9:40 p.m.

2 stops10h 30m

London

Fri 11/9

5:40 a.m.-10:39 a.m.

1 stop7h 59m

C$ 492

New YorkLondon

LGA - YXU

LGAYXU

New York LaGuardia

Mon 15/6

8:25 p.m.-1:50 p.m.

2 stops17h 25m

London

Sun 21/6

2:40 p.m.-7:25 p.m.

2 stops28h 45m

C$ 786

New YorkLondon

LGA - YXU

LGAYXU

New York LaGuardia

Mon 15/6

8:25 p.m.-1:50 p.m.

2 stops17h 25m

London

Sun 21/6

2:40 p.m.-7:25 p.m.

2 stops28h 45m

C$ 821

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Mon 12/10

11:33 a.m.-5:20 a.m.

2 stops14h 47m

London

Wed 21/10

6:10 a.m.-6:48 p.m.

2 stops15h 38m

C$ 990

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Mon 12/10

11:33 a.m.-5:20 a.m.

2 stops14h 47m

London

Wed 21/10

6:10 a.m.-6:48 p.m.

2 stops15h 38m

C$ 991

Quickest round-trip

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Tue 8/9

8:45 a.m.-5:43 p.m.

2 stops7h 58m

London

Sat 12/9

10:05 a.m.-2:55 p.m.

1 stop5h 50m

C$ 1,026

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Tue 8/9

10:50 a.m.-9:40 p.m.

2 stops9h 50m

London

Sat 12/9

3:30 p.m.-11:40 p.m.

2 stops9h 10m

C$ 1,046

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

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

You could potentially save up to 16% 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	3h 55m
Direct flights	None

The fastest flight from United States to London, Ontario takes 3h 55m

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

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Frequently asked questions about flying from the United States to London, Ontario

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 737-800 Passenger/BBJ2 (winglets) (100.00% of total bookings).

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.