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 50m 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.

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

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 44% 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.

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$ 247 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.

1:10 p.m. - 5:20 a.m.-

13h 10m

6:10 a.m. - 2:10 p.m.-

11h 00m

C$ 555Multiple Airlines

Wed, 7 Oct - Fri, 16 Oct

7:04 p.m. - 5:20 a.m.-

31h 16m

6:10 a.m. - 2:10 p.m.-

11h 00m

C$ 568Multiple Airlines

Thu, 24 Sep - Mon, 28 Sep

1:00 p.m. - 5:20 a.m.-

13h 20m

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

8h 50m

C$ 599WestJet

Fri, 28 Aug - Mon, 31 Aug

9:01 a.m. - 5:20 a.m.-

17h 19m

6:10 a.m. - 2:10 p.m.-

11h 00m

C$ 606Multiple Airlines

Wed, 7 Oct - Fri, 16 Oct

6:00 a.m. - 5:20 a.m.-

20h 20m

5:55 p.m. - 12:00 p.m.-

21h 05m

C$ 610WestJet

Mon, 14 Sep - Mon, 21 Sep

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

7h 45m

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

8h 50m

C$ 623WestJet

Mon, 14 Sep - Wed, 7 Oct

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

10h 50m

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

11h 30m

C$ 630WestJet

Mon, 14 Sep - Mon, 21 Sep

7:13 p.m. - 5:20 a.m.-

31h 07m

6:10 a.m. - 2:10 p.m.-

11h 00m

C$ 644Multiple Airlines

Thu, 8 Oct - Thu, 15 Oct

7:04 p.m. - 5:20 a.m.-

31h 16m

6:10 a.m. - 2:10 p.m.-

11h 00m

C$ 645Multiple Airlines

Tue, 6 Oct - Thu, 15 Oct

1:35 p.m. - 5:20 a.m.-

12h 45m

6:10 a.m. - 2:10 p.m.-

11h 00m

C$ 647Multiple Airlines

Thu, 8 Oct - Sun, 18 Oct

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WestJet flights from United States to London, Ontario

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

WestJet

28 Aug

SFO1:00 p.m.San Francisco

13h 20m

1 stop

YXU5:20 a.m.London

31 Aug

YXU6:10 a.m.London

8h 50m

1 stop

SFO12:00 p.m.San Francisco

C$ 599

WestJet

14 Sep

SFO6:00 a.m.San Francisco

20h 20m

1 stop

YXU5:20 a.m.London

21 Sep

YXU5:55 p.m.London

21h 05m

1 stop

SFO12:00 p.m.San Francisco

C$ 610

WestJet

14 Sep

SFO6:00 a.m.San Francisco

7h 45m

1 stop

YXU4:45 p.m.London

7 Oct

YXU6:10 a.m.London

8h 50m

1 stop

SFO12:00 p.m.San Francisco

C$ 623

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 Sep

SFO11:35 a.m.San Francisco

7h 05m

1 stop

YXU9:40 p.m.London

29 Sep

YXU10:05 a.m.London

8h 19m

1 stop

SFO3:24 p.m.San Francisco

C$ 679

Air Canada

26 Sep

SFO11:35 a.m.San Francisco

7h 05m

1 stop

YXU9:40 p.m.London

29 Sep

YXU10:05 a.m.London

8h 19m

1 stop

SFO3:24 p.m.San Francisco

C$ 680

Air Canada

26 Sep

SFO11:35 a.m.San Francisco

7h 05m

1 stop

YXU9:40 p.m.London

29 Sep

YXU3:30 p.m.London

10h 50m

2 stops

SFO11:20 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 DiegoLondon

SAN - YXU

SANYXU

San Diego

Wed 7/10

1:10 p.m.-5:20 a.m.

2 stops13h 10m

London

Fri 16/10

6:10 a.m.-2:10 p.m.

1 stop11h 00m

C$ 555

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 24/9

7:04 p.m.-5:20 a.m.

2 stops31h 16m

London

Mon 28/9

6:10 a.m.-2:10 p.m.

1 stop11h 00m

C$ 568

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Fri 28/8

1:00 p.m.-5:20 a.m.

1 stop13h 20m

London

Mon 31/8

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

1 stop8h 50m

C$ 599

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Wed 7/10

9:01 a.m.-5:20 a.m.

3 stops17h 19m

London

Fri 16/10

6:10 a.m.-2:10 p.m.

1 stop11h 00m

C$ 606

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 14/9

6:00 a.m.-5:20 a.m.

1 stop20h 20m

London

Mon 21/9

5:55 p.m.-12:00 p.m.

1 stop21h 05m

C$ 610

Quickest round-trip

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 14/9

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

1 stop7h 45m

London

Wed 7/10

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

1 stop8h 50m

C$ 623

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 14/9

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

1 stop10h 50m

London

Mon 21/9

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

1 stop11h 30m

C$ 630

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 8/10

7:13 p.m.-5:20 a.m.

2 stops31h 07m

London

Thu 15/10

6:10 a.m.-2:10 p.m.

1 stop11h 00m

C$ 644

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Tue 6/10

7:04 p.m.-5:20 a.m.

2 stops31h 16m

London

Thu 15/10

6:10 a.m.-2:10 p.m.

1 stop11h 00m

C$ 645

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 8/10

1:35 p.m.-5:20 a.m.

2 stops12h 45m

London

Sun 18/10

6:10 a.m.-2:10 p.m.

1 stop11h 00m

C$ 647

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 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.

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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.

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.