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?

WestJet, Air Canada, and United Airlines 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$ 292 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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Recent round-trip flight deals from the United States to London

Enter your travel dates to find the best prices.

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

DEN

YXU

15h 05m

1 stop

5:55 p.m. - 11:20 a.m.

YXU

DEN

19h 25m

1 stop

C$ 502WestJet

Fri, 31 Jul - Sun, 9 Aug

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

DEN

YXU

15h 05m

1 stop

2:40 p.m. - 11:20 a.m.

YXU

DEN

22h 40m

2 stops

C$ 669WestJet

Fri, 31 Jul - Sun, 9 Aug

12:15 p.m. - 4:45 p.m.

DEN

YXU

26h 30m

1 stop

5:55 p.m. - 11:20 a.m.

YXU

DEN

19h 25m

1 stop

C$ 673WestJet

Fri, 3 Jul - Sat, 11 Jul

12:15 p.m. - 4:45 p.m.

DEN

YXU

26h 30m

1 stop

5:55 p.m. - 11:20 a.m.

YXU

DEN

19h 25m

1 stop

C$ 677WestJet

Fri, 31 Jul - Sun, 9 Aug

12:45 p.m. - 9:38 p.m.

DCA

YXU

8h 53m

2 stops

6:10 p.m. - 10:28 p.m.

YXU

DCA

4h 18m

1 stop

C$ 735Air Canada

Sat, 9 May - Fri, 15 May

9:45 a.m. - 5:33 p.m.

IAD

YXU

7h 48m

2 stops

9:30 a.m. - 3:29 p.m.

YXU

IAD

5h 59m

1 stop

C$ 737Air Canada

Sat, 9 May - Fri, 15 May

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

DCA

YXU

23h 20m

3 stops

5:10 a.m. - 8:53 a.m.

YXU

DCA

3h 43m

1 stop

C$ 810Multiple Airlines

Sat, 9 May - Fri, 15 May

10:39 p.m. - 5:20 a.m.

DEN

YXU

28h 41m

2 stops

5:55 p.m. - 11:20 a.m.

YXU

DEN

19h 25m

1 stop

C$ 851Multiple Airlines

Sat, 4 Jul - Sat, 11 Jul

11:00 a.m. - 2:58 p.m.

EWR

YXU

3h 58m

1 stop

9:30 a.m. - 1:38 p.m.

YXU

EWR

4h 08m

1 stop

C$ 982United Airlines

Thu, 4 Jun - Thu, 11 Jun

4:05 p.m. - 9:38 p.m.

IAD

YXU

5h 33m

1 stop

9:30 a.m. - 3:29 p.m.

YXU

IAD

5h 59m

1 stop

C$ 986United Airlines

Sat, 9 May - Fri, 15 May

WestJet flights from United States to London, Ontario

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

WestJet

31 Jul

DEN12:15 p.m.Denver Intl

15h 05m

1 stop

YXU5:20 a.m.London

9 Aug

YXU5:55 p.m.London

19h 25m

1 stop

DEN11:20 a.m.Denver Intl

C$ 672

WestJet

3 Jul

DEN12:15 p.m.Denver Intl

26h 30m

1 stop

YXU4:45 p.m.London

11 Jul

YXU5:55 p.m.London

19h 25m

1 stop

DEN11:20 a.m.Denver Intl

C$ 673

WestJet

31 Jul

DEN12:15 p.m.Denver Intl

26h 30m

1 stop

YXU4:45 p.m.London

9 Aug

YXU5:55 p.m.London

19h 25m

1 stop

DEN11:20 a.m.Denver Intl

C$ 677

Air Canada flights from United States to London, Ontario

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

Air Canada

9 May

DCA12:45 p.m.Washington, D.C. Reagan-National

8h 53m

2 stops

YXU9:38 p.m.London

15 May

YXU6:10 p.m.London

4h 18m

1 stop

DCA10:28 p.m.Washington, D.C. Reagan-National

C$ 734

Air Canada

9 May

IAD9:45 a.m.Washington, D.C. Dulles Intl

7h 48m

2 stops

YXU5:33 p.m.London

15 May

YXU9:30 a.m.London

5h 59m

1 stop

IAD3:29 p.m.Washington, D.C. Dulles Intl

C$ 737

Air Canada

9 May

DCA11:00 a.m.Washington, D.C. Reagan-National

6h 33m

1 stop

YXU5:33 p.m.London

15 May

YXU12:20 p.m.London

5h 53m

1 stop

DCA6:13 p.m.Washington, D.C. Reagan-National

C$ 774

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

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Fri 31/7

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

1 stop15h 05m

London

Sun 9/8

5:55 p.m.-11:20 a.m.

1 stop19h 25m

C$ 502

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Fri 31/7

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

1 stop15h 05m

London

Sun 9/8

2:40 p.m.-11:20 a.m.

2 stops22h 40m

C$ 669

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Fri 3/7

12:15 p.m.-4:45 p.m.

1 stop26h 30m

London

Sat 11/7

5:55 p.m.-11:20 a.m.

1 stop19h 25m

C$ 673

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Fri 31/7

12:15 p.m.-4:45 p.m.

1 stop26h 30m

London

Sun 9/8

5:55 p.m.-11:20 a.m.

1 stop19h 25m

C$ 677

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Sat 9/5

12:45 p.m.-9:38 p.m.

2 stops8h 53m

London

Fri 15/5

6:10 p.m.-10:28 p.m.

1 stop4h 18m

C$ 734

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Sat 9/5

9:45 a.m.-5:33 p.m.

2 stops7h 48m

London

Fri 15/5

9:30 a.m.-3:29 p.m.

1 stop5h 59m

C$ 737

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Sat 9/5

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

3 stops23h 20m

London

Fri 15/5

5:10 a.m.-8:53 a.m.

1 stop3h 43m

C$ 810

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Sat 4/7

10:39 p.m.-5:20 a.m.

2 stops28h 41m

London

Sat 11/7

5:55 p.m.-11:20 a.m.

1 stop19h 25m

C$ 851

Quickest round-trip

NewarkLondon

EWR - YXU

EWRYXU

Newark

Thu 4/6

11:00 a.m.-2:58 p.m.

1 stop3h 58m

London

Thu 11/6

9:30 a.m.-1:38 p.m.

1 stop4h 08m

C$ 982

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Sat 9/5

4:05 p.m.-9:38 p.m.

1 stop5h 33m

London

Fri 15/5

9:30 a.m.-3:29 p.m.

1 stop5h 59m

C$ 986

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 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	4h 43m
Direct flights	None

The fastest flight from United States to London, Ontario takes 4h 43m

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.
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.