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.

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

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

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 49m on average, while flying from Boston to Toronto Pearson Intl Airport is 1h 55m on average. Toronto Pearson Intl Airport is the most popular airport in 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.

C$ 259 Cheap Flights from the United States to London, Ontario in 2026

Find the cheapest flights from the United States to London

Round-trip

One-way

Last minute

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

Enter your travel dates to find the best prices.

6:05 p.m. - 5:20 a.m.

SFO

YXU

8h 15m

1 stop

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

YXU

SFO

8h 50m

1 stop

C$ 578WestJet

Sun, 2 Aug - Sat, 8 Aug

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$ 629WestJet

Fri, 21 Aug - Thu, 27 Aug

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

SEA

YXU

6h 45m

1 stop

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

YXU

SEA

15h 35m

1 stop

C$ 646WestJet

Wed, 23 Sep - Wed, 7 Oct

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

SEA

YXU

6h 45m

1 stop

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

YXU

SEA

15h 35m

1 stop

C$ 650WestJet

Tue, 22 Sep - Wed, 7 Oct

11:35 a.m. - 9:40 p.m.

SFO

YXU

7h 05m

1 stop

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

YXU

SFO

7h 59m

1 stop

C$ 653Air Canada

Tue, 15 Sep - Wed, 16 Sep

4:35 p.m. - 9:20 a.m.

SFO

YXU

13h 45m

2 stops

3:30 p.m. - 8:59 p.m.

YXU

SFO

8h 29m

1 stop

C$ 660Air Canada

Tue, 15 Sep - Wed, 16 Sep

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

SFO

YXU

7h 45m

1 stop

6:10 a.m. - 8:40 p.m.

YXU

SFO

17h 30m

2 stops

C$ 664Multiple Airlines

Sun, 2 Aug - Sat, 8 Aug

10:47 p.m. - 9:17 a.m.

SFO

YXU

7h 30m

1 stop

5:40 a.m. - 5:35 p.m.

YXU

SFO

14h 55m

2 stops

C$ 839United Airlines

Sun, 2 Aug - Sat, 8 Aug

12:15 p.m. - 5:20 a.m.

DEN

YXU

15h 05m

1 stop

6:10 a.m. - 4:34 p.m.

YXU

DEN

12h 24m

2 stops

C$ 910Multiple Airlines

Wed, 29 Jul - Wed, 5 Aug

10:35 a.m. - 8:32 p.m.

CLT

YXU

9h 57m

2 stops

10:05 a.m. - 2:57 p.m.

YXU

CLT

4h 52m

1 stop

C$ 1,274United Airlines

Thu, 9 Jul - Thu, 16 Jul

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Delta flights from United States to London, Ontario

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

Delta

2 Aug

SFO6:05 p.m.San Francisco

8h 15m

1 stop

YXU5:20 a.m.London

8 Aug

YXU6:10 a.m.London

16h 33m

2 stops

SFO7:43 p.m.San Francisco

C$ 987

Delta

18 Sep

DFW7:15 a.m.Dallas/Fort Worth

21h 05m

2 stops

YXU5:20 a.m.London

26 Sep

YXU6:10 a.m.London

16h 59m

2 stops

DFW10:09 p.m.Dallas/Fort Worth

C$ 1,612

Air Canada flights from United States to London, Ontario

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

Air Canada

15 Sep

SFO11:35 a.m.San Francisco

7h 05m

1 stop

YXU9:40 p.m.London

16 Sep

YXU5:40 a.m.London

7h 59m

1 stop

SFO10:39 a.m.San Francisco

C$ 653

Air Canada

15 Sep

SFO4:35 p.m.San Francisco

13h 45m

2 stops

YXU9:20 a.m.London

16 Sep

YXU3:30 p.m.London

8h 29m

1 stop

SFO8:59 p.m.San Francisco

C$ 660

Air Canada

13 Oct

SFO11:35 a.m.San Francisco

7h 05m

1 stop

YXU9:40 p.m.London

15 Oct

YXU5:40 a.m.London

18h 40m

2 stops

SFO9:20 p.m.San Francisco

C$ 687

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

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sun 2/8

6:05 p.m.-5:20 a.m.

1 stop8h 15m

London

Sat 8/8

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

1 stop8h 50m

C$ 578

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Fri 21/8

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

1 stop7h 45m

London

Thu 27/8

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

1 stop8h 50m

C$ 629

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Wed 23/9

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

1 stop6h 45m

London

Wed 7/10

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

1 stop15h 35m

C$ 646

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Tue 22/9

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

1 stop6h 45m

London

Wed 7/10

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

1 stop15h 35m

C$ 650

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 15/9

11:35 a.m.-9:40 p.m.

1 stop7h 05m

London

Wed 16/9

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

1 stop7h 59m

C$ 653

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 15/9

4:35 p.m.-9:20 a.m.

2 stops13h 45m

London

Wed 16/9

3:30 p.m.-8:59 p.m.

1 stop8h 29m

C$ 660

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sun 2/8

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

1 stop7h 45m

London

Sat 8/8

6:10 a.m.-8:40 p.m.

2 stops17h 30m

C$ 664

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sun 2/8

10:47 p.m.-9:17 a.m.

1 stop7h 30m

London

Sat 8/8

5:40 a.m.-5:35 p.m.

2 stops14h 55m

C$ 839

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Wed 29/7

12:15 p.m.-5:20 a.m.

1 stop15h 05m

London

Wed 5/8

6:10 a.m.-4:34 p.m.

2 stops12h 24m

C$ 910

Quickest round-trip

CharlotteLondon

CLT - YXU

CLTYXU

Charlotte Douglas

Thu 9/7

10:35 a.m.-8:32 p.m.

2 stops9h 57m

London

Thu 16/7

10:05 a.m.-2:57 p.m.

1 stop4h 52m

C$ 1,274

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 month to fly to London, Ontario?

The month of February is another great option to travel to London, Ontario, with average flight prices from United States averaging around C$ 0.

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 50m
Direct flights	None

The fastest flight from United States to London, Ontario takes 3h 50m

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

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.

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.