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

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.

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 10 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$ 233 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

Round-trip

One-way

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

Enter your travel dates to find the best prices.

5:30 p.m. - 5:25 a.m.

ORD

YXU

10h 55m

1 stop

6:15 a.m. - 4:40 p.m.

YXU

ORD

11h 25m

1 stop

C$ 520WestJet

Mon, 25 May - Thu, 28 May

5:30 p.m. - 5:25 a.m.

ORD

YXU

10h 55m

1 stop

5:55 p.m. - 4:40 p.m.

YXU

ORD

23h 45m

1 stop

C$ 526WestJet

Sat, 23 May - Tue, 26 May

5:30 p.m. - 5:25 a.m.

ORD

YXU

10h 55m

1 stop

6:15 a.m. - 4:40 p.m.

YXU

ORD

11h 25m

1 stop

C$ 527WestJet

Mon, 25 May - Thu, 28 May

5:30 p.m. - 5:25 a.m.

ORD

YXU

10h 55m

1 stop

5:55 p.m. - 4:40 p.m.

YXU

ORD

23h 45m

1 stop

C$ 533WestJet

Sat, 23 May - Tue, 26 May

8:30 a.m. - 9:21 p.m.

MCO

YXU

12h 51m

2 stops

5:40 p.m. - 11:50 p.m.

YXU

MCO

6h 10m

1 stop

C$ 563Air Canada

Wed, 18 Feb - Sun, 22 Feb

10:00 p.m. - 8:46 a.m.

MCO

YXU

10h 46m

1 stop

5:40 p.m. - 11:50 p.m.

YXU

MCO

6h 10m

1 stop

C$ 585Air Canada

Wed, 18 Feb - Sun, 22 Feb

2:20 p.m. - 6:35 a.m.

ORD

YXU

15h 15m

1 stop

8:10 p.m. - 6:36 p.m.

YXU

ORD

23h 26m

2 stops

C$ 612Multiple Airlines

Mon, 9 Mar - Mon, 16 Mar

11:04 a.m. - 5:25 a.m.

JFK

YXU

18h 21m

2 stops

5:55 p.m. - 4:35 p.m.

YXU

JFK

22h 40m

1 stop

C$ 671Multiple Airlines

Sun, 3 May - Fri, 5 Jun

8:53 a.m. - 9:21 p.m.

SFO

YXU

9h 28m

1 stop

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

YXU

SFO

9h 00m

1 stop

C$ 754United Airlines

Fri, 13 Mar - Fri, 20 Mar

8:52 p.m. - 5:05 p.m.

SFO

YXU

17h 13m

2 stops

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

YXU

SFO

9h 00m

1 stop

C$ 767United Airlines

Thu, 12 Mar - Thu, 19 Mar

United Airlines flights from United States to London, Ontario

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

United Airlines

13 Mar

SFO8:53 a.m.San Francisco

9h 28m

1 stop

YXU9:21 p.m.London

20 Mar

YXU9:25 a.m.London

9h 00m

1 stop

SFO3:25 p.m.San Francisco

C$ 754

United Airlines

12 Mar

SFO8:52 p.m.San Francisco

17h 13m

2 stops

YXU5:05 p.m.London

19 Mar

YXU9:25 a.m.London

9h 00m

1 stop

SFO3:25 p.m.San Francisco

C$ 767

United Airlines

13 Mar

SFO8:53 a.m.San Francisco

9h 28m

1 stop

YXU9:21 p.m.London

20 Mar

YXU9:25 a.m.London

14h 55m

2 stops

SFO9:20 p.m.San Francisco

C$ 775

Air Canada flights from United States to London, Ontario

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

Air Canada

18 Feb

MCO8:30 a.m.Orlando

12h 51m

2 stops

YXU9:21 p.m.London

22 Feb

YXU5:40 p.m.London

6h 10m

1 stop

MCO11:50 p.m.Orlando

C$ 563

Air Canada

18 Feb

MCO10:00 p.m.Orlando

10h 46m

1 stop

YXU8:46 a.m.London

22 Feb

YXU5:40 p.m.London

6h 10m

1 stop

MCO11:50 p.m.Orlando

C$ 585

Air Canada

13 Mar

MCO10:20 a.m.Orlando

6h 45m

1 stop

YXU5:05 p.m.London

20 Mar

YXU5:40 p.m.London

6h 10m

1 stop

MCO11:50 p.m.Orlando

C$ 602

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 25/5

5:30 p.m.-5:25 a.m.

1 stop10h 55m

London

Thu 28/5

6:15 a.m.-4:40 p.m.

1 stop11h 25m

C$ 520

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 23/5

5:30 p.m.-5:25 a.m.

1 stop10h 55m

London

Tue 26/5

5:55 p.m.-4:40 p.m.

1 stop23h 45m

C$ 526

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 25/5

5:30 p.m.-5:25 a.m.

1 stop10h 55m

London

Thu 28/5

6:15 a.m.-4:40 p.m.

1 stop11h 25m

C$ 527

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 23/5

5:30 p.m.-5:25 a.m.

1 stop10h 55m

London

Tue 26/5

5:55 p.m.-4:40 p.m.

1 stop23h 45m

C$ 533

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Wed 18/2

8:30 a.m.-9:21 p.m.

2 stops12h 51m

London

Sun 22/2

5:40 p.m.-11:50 p.m.

1 stop6h 10m

C$ 563

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Wed 18/2

10:00 p.m.-8:46 a.m.

1 stop10h 46m

London

Sun 22/2

5:40 p.m.-11:50 p.m.

1 stop6h 10m

C$ 585

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 9/3

2:20 p.m.-6:35 a.m.

1 stop15h 15m

London

Mon 16/3

8:10 p.m.-6:36 p.m.

2 stops23h 26m

C$ 612

New YorkLondon

JFK - YXU

JFKYXU

New York John F Kennedy Intl

Sun 3/5

11:04 a.m.-5:25 a.m.

2 stops18h 21m

London

Fri 5/6

5:55 p.m.-4:35 p.m.

1 stop22h 40m

C$ 671

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Fri 13/3

8:53 a.m.-9:21 p.m.

1 stop9h 28m

London

Fri 20/3

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

1 stop9h 00m

C$ 754

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 12/3

8:52 p.m.-5:05 p.m.

2 stops17h 13m

London

Thu 19/3

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

1 stop9h 00m

C$ 767

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 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

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.