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

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 10 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.

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$ 209 Cheap Flights from the United States to London in 2025/26

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.

2:20 p.m. - 6:34 a.m.

ORD

YXU

15h 14m1 stop

8:10 p.m. - 1:35 p.m.

YXU

ORD

18h 25m1 stop

C$ 433WestJet

Mon, 12 Jan - Thu, 15 Jan

8:45 a.m. - 9:18 p.m.

SFO

YXU

9h 33m1 stop

5:10 a.m. - 10:45 a.m.

YXU

SFO

8h 35m1 stop

C$ 455Air Canada

Tue, 21 Apr - Sat, 25 Apr

8:45 a.m. - 9:18 p.m.

SFO

YXU

9h 33m1 stop

5:10 a.m. - 12:32 p.m.

YXU

SFO

10h 22m2 stops

C$ 462Air Canada

Tue, 21 Apr - Sat, 25 Apr

2:20 p.m. - 6:34 a.m.

ORD

YXU

15h 14m1 stop

8:10 p.m. - 11:46 p.m.

YXU

ORD

28h 36m3 stops

C$ 543Multiple Airlines

Mon, 12 Jan - Thu, 15 Jan

9:20 a.m. - 6:34 a.m.

MCO

YXU

21h 14m2 stops

8:10 p.m. - 11:42 p.m.

YXU

MCO

27h 32m2 stops

C$ 575Multiple Airlines

Thu, 29 Jan - Thu, 5 Feb

6:35 a.m. - 9:18 p.m.

SFO

YXU

11h 43m2 stops

5:10 a.m. - 12:32 p.m.

YXU

SFO

10h 22m2 stops

C$ 579Air Canada

Tue, 21 Apr - Sat, 25 Apr

9:05 a.m. - 5:12 a.m.

SJC

YXU

17h 07m2 stops

6:00 a.m. - 5:04 p.m.

YXU

SJC

14h 04m2 stops

C$ 931Delta

Fri, 15 May - Sat, 30 May

12:35 p.m. - 5:05 p.m.

IAD

YXU

4h 30m1 stop

9:25 a.m. - 3:49 p.m.

YXU

IAD

6h 24m1 stop

C$ 937United Airlines

Thu, 29 Jan - Thu, 5 Feb

6:00 a.m. - 5:05 p.m.

DCA

YXU

11h 05m2 stops

5:10 a.m. - 8:55 a.m.

YXU

DCA

3h 45m1 stop

C$ 951United Airlines

Thu, 29 Jan - Thu, 5 Feb

9:05 a.m. - 5:12 a.m.

SJC

YXU

17h 07m2 stops

6:00 a.m. - 5:04 p.m.

YXU

SJC

14h 04m2 stops

C$ 966Delta

Fri, 15 May - Sat, 30 May

United Airlines flights from United States to London, Ontario

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

United Airlines

26 Dec

MCO9:26 a.m.Orlando

11h 55m

2 stops

YXU9:21 p.m.London

29 Dec

YXU5:10 a.m.London

16h 49m

2 stops

MCO9:59 p.m.Orlando

C$ 747

Find similar

United Airlines

31 Jan

MCO9:00 a.m.Orlando

8h 05m

2 stops

YXU5:05 p.m.London

7 Feb

YXU5:10 a.m.London

14h 42m

2 stops

MCO7:52 p.m.Orlando

C$ 762

Find similar

United Airlines

15 Jan

SAN10:00 p.m.San Diego

20h 20m

2 stops

YXU9:20 p.m.London

18 Jan

YXU5:10 a.m.London

18h 39m

3 stops

SAN8:49 p.m.San Diego

C$ 769

Find similar

WestJet flights from United States to London, Ontario

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

WestJet

12 Jan

ORD2:20 p.m.Chicago O'Hare Intl

15h 14m

1 stop

YXU6:34 a.m.London

15 Jan

YXU8:10 p.m.London

18h 25m

1 stop

ORD1:35 p.m.Chicago O'Hare Intl

C$ 433

Find similar

WestJet

15 Jan

SFO1:00 p.m.San Francisco

14h 34m

1 stop

YXU6:34 a.m.London

19 Jan

YXU8:10 p.m.London

19h 02m

1 stop

SFO12:12 p.m.San Francisco

C$ 481

Find similar

WestJet

15 Jan

SFO1:00 p.m.San Francisco

14h 34m

1 stop

YXU6:34 a.m.London

19 Jan

YXU8:10 p.m.London

19h 02m

1 stop

SFO12:12 p.m.San Francisco

C$ 605

Find similar

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 12/1

2:20 p.m.-6:34 a.m.

1 stop15h 14m

London

Thu 15/1

8:10 p.m.-1:35 p.m.

1 stop18h 25m

C$ 433

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 21/4

8:45 a.m.-9:18 p.m.

1 stop9h 33m

London

Sat 25/4

5:10 a.m.-10:45 a.m.

1 stop8h 35m

C$ 455

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 21/4

8:45 a.m.-9:18 p.m.

1 stop9h 33m

London

Sat 25/4

5:10 a.m.-12:32 p.m.

2 stops10h 22m

C$ 462

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 12/1

2:20 p.m.-6:34 a.m.

1 stop15h 14m

London

Thu 15/1

8:10 p.m.-11:46 p.m.

3 stops28h 36m

C$ 543

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Thu 29/1

9:20 a.m.-6:34 a.m.

2 stops21h 14m

London

Thu 5/2

8:10 p.m.-11:42 p.m.

2 stops27h 32m

C$ 575

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 21/4

6:35 a.m.-9:18 p.m.

2 stops11h 43m

London

Sat 25/4

5:10 a.m.-12:32 p.m.

2 stops10h 22m

C$ 579

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Fri 15/5

9:05 a.m.-5:12 a.m.

2 stops17h 07m

London

Sat 30/5

6:00 a.m.-5:04 p.m.

2 stops14h 04m

C$ 931

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Thu 29/1

12:35 p.m.-5:05 p.m.

1 stop4h 30m

London

Thu 5/2

9:25 a.m.-3:49 p.m.

1 stop6h 24m

C$ 937

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Thu 29/1

6:00 a.m.-5:05 p.m.

2 stops11h 05m

London

Thu 5/2

5:10 a.m.-8:55 a.m.

1 stop3h 45m

C$ 951

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Fri 15/5

9:05 a.m.-5:12 a.m.

2 stops17h 07m

London

Sat 30/5

6:00 a.m.-5:04 p.m.

2 stops14h 04m

C$ 966

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 7% 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 01m
Direct flights	None

The fastest flight from United States to London, Ontario takes 4h 01m

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.