Which airlines fly to United States?

Porter Airlines, Air Canada and WestJet are the top three most popular airlines that fly to United States from London, Ontario according to our data. Porter Airlines is the first choice among our users, with 40% of people opting to fly with this airline when travelling to United States. Keep in mind that there are 10 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

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

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

When did momondo last update prices for flights from London Airport to United States?

Prices for flights from London Airport to United States refresh daily.

How many operators does momondo search for flights from London Airport to United States?

As of August 2026, there are 2 operators available to choose from for flights from London Airport to United States.

How old do you have to be to fly from London Airport to United States?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to United States.

What documentation or ID do you need to fly to United States?

The travel and health documents you'll need for your trip to United States may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United States. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 198 Cheap Flights from London, Ontario to the United States in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from London, Ontario to the United States

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:40 a.m. - 11:29 a.m.YXU London-FLL Fort Lauderdale

5h 49m1 stop Toronto Pearson Intl

10:35 p.m. - 9:20 a.m.FLL Fort Lauderdale-YXU London

10h 45m1 stop Toronto Pearson Intl

C$ 377Air Canada

Thu, 10 Sep - Thu, 17 Sep

5:30 a.m. - 11:33 a.m.YXU London-FLL Fort Lauderdale

6h 03m1 stop Toronto Pearson Intl

8:00 a.m. - 2:47 p.m.FLL Fort Lauderdale-YXU London

6h 47m1 stop Toronto Pearson Intl

C$ 409Air Canada

Mon, 2 Nov - Wed, 4 Nov

5:30 a.m. - 11:33 a.m.YXU London-FLL Fort Lauderdale

6h 03m1 stop Toronto Pearson Intl

8:00 a.m. - 2:47 p.m.FLL Fort Lauderdale-YXU London

6h 47m1 stop Toronto Pearson Intl

C$ 410Air Canada

Mon, 2 Nov - Wed, 4 Nov

5:30 a.m. - 11:33 a.m.YXU London-FLL Fort Lauderdale

6h 03m1 stop Toronto Pearson Intl

8:00 a.m. - 2:42 p.m.FLL Fort Lauderdale-YXU London

6h 42m1 stop Toronto Pearson Intl

C$ 411Air Canada

Sun, 31 Jan - Fri, 5 Feb

6:10 a.m. - 12:00 p.m.YXU London-SFO San Francisco

8h 50m1 stop Calgary

6:05 p.m. - 5:20 a.m.SFO San Francisco-YXU London

8h 15m1 stop Calgary

C$ 457WestJet

Fri, 11 Sep - Wed, 16 Sep

6:10 a.m. - 12:25 p.m.YXU London-LAX Los Angeles Los Angeles

9h 15m1 stop Calgary

7:00 a.m. - 7:15 p.m.LAX Los Angeles Los Angeles-YXU London

9h 15m1 stop Calgary

C$ 519WestJet

Wed, 21 Oct - Wed, 28 Oct

6:10 a.m. - 12:25 p.m.YXU London-LAX Los Angeles Los Angeles

9h 15m1 stop Calgary

6:05 p.m. - 5:20 a.m.LAX Los Angeles Los Angeles-YXU London

8h 15m1 stop Calgary

C$ 526WestJet

Wed, 14 Oct - Tue, 20 Oct

5:30 a.m. - 3:34 p.m.YXU London-FLL Fort Lauderdale

10h 04m2 stops Toronto Pearson Intl Houston George Bush Intcntl

11:13 a.m. - 9:47 p.m.FLL Fort Lauderdale-YXU London

10h 34m2 stops Newark Toronto Pearson Intl

C$ 544United Airlines

Wed, 2 Dec - Tue, 8 Dec

9:15 a.m. - 7:05 p.m.YXU London-FLL Fort Lauderdale

9h 50m2 stops Toronto Pearson Intl Newark

8:52 p.m. - 2:42 p.m.FLL Fort Lauderdale-YXU London

17h 50m2 stops Chicago O'Hare Intl Toronto Pearson Intl

C$ 544United Airlines

Wed, 2 Dec - Sat, 12 Dec

6:10 a.m. - 12:00 p.m.YXU London-SFO San Francisco

8h 50m1 stop Calgary

7:11 p.m. - 5:20 a.m.SFO San Francisco-YXU London

31h 09m2 stops Las Vegas Harry Reid Intl Calgary

C$ 611Multiple Airlines

Fri, 11 Sep - Wed, 16 Sep

Cheap last-minute flights

Enter your travel dates to find the best prices.

5:40 a.m. - 2:58 p.m.YXU London-MCO Orlando

9h 18m2 stops Toronto Pearson Intl Chicago O'Hare Intl

12:35 p.m. - 9:40 p.m.MCO Orlando-YXU London

9h 05m2 stops Chicago O'Hare Intl Toronto Pearson Intl

C$ 683Air Canada

Fri, 14 Aug - Fri, 21 Aug

5:40 a.m. - 2:58 p.m.YXU London-MCO Orlando

9h 18m2 stops Toronto Pearson Intl Chicago O'Hare Intl

12:35 p.m. - 9:40 p.m.MCO Orlando-YXU London

9h 05m2 stops Chicago O'Hare Intl Toronto Pearson Intl

C$ 774Air Canada

Fri, 14 Aug - Tue, 18 Aug

5:40 a.m. - 2:54 p.m.YXU London-MIA Miami

9h 14m2 stops Toronto Pearson Intl Chicago O'Hare Intl

5:01 p.m. - 2:50 p.m.MIA Miami-YXU London

21h 49m2 stops Houston George Bush Intcntl Toronto Pearson Intl

C$ 839United Airlines

Fri, 14 Aug - Fri, 21 Aug

5:40 a.m. - 2:54 p.m.YXU London-MIA Miami

9h 14m2 stops Toronto Pearson Intl Chicago O'Hare Intl

3:57 p.m. - 9:20 a.m.MIA Miami-YXU London

17h 23m2 stops Chicago O'Hare Intl Toronto Pearson Intl

C$ 901United Airlines

Sat, 15 Aug - Sat, 22 Aug

6:10 a.m. - 3:45 p.m.YXU London-LAS Las Vegas Harry Reid Intl

12h 35m2 stops Calgary Edmonton

8:30 a.m. - 7:50 p.m.LAS Las Vegas Harry Reid Intl-YXU London

8h 20m1 stop Calgary

C$ 904WestJet

Fri, 14 Aug - Fri, 21 Aug

10:05 a.m. - 7:32 p.m.YXU London-MCO Orlando

9h 27m2 stops Toronto Pearson Intl Chicago O'Hare Intl

7:00 a.m. - 5:42 p.m.MCO Orlando-YXU London

10h 42m1 stop Toronto Pearson Intl

C$ 926Air Canada

Fri, 14 Aug - Tue, 18 Aug

5:40 a.m. - 2:44 p.m.YXU London-LAS Las Vegas Harry Reid Intl

12h 04m2 stops Toronto Pearson Intl Chicago O'Hare Intl

7:10 a.m. - 9:40 p.m.LAS Las Vegas Harry Reid Intl-YXU London

11h 30m2 stops Chicago O'Hare Intl Toronto Pearson Intl

C$ 933Air Canada

Fri, 14 Aug - Fri, 21 Aug

8:40 p.m. - 9:40 p.m.YXU London-LAS Las Vegas Harry Reid Intl

28h 00m1 stop Calgary

8:30 a.m. - 7:50 p.m.LAS Las Vegas Harry Reid Intl-YXU London

8h 20m1 stop Calgary

C$ 939WestJet

Fri, 14 Aug - Fri, 21 Aug

5:40 a.m. - 2:54 p.m.YXU London-MIA Miami

9h 14m2 stops Toronto Pearson Intl Chicago O'Hare Intl

9:45 p.m. - 9:20 a.m.MIA Miami-YXU London

11h 35m1 stop Toronto Pearson Intl

C$ 1,051Multiple Airlines

Fri, 14 Aug - Fri, 21 Aug

6:10 a.m. - 10:05 p.m.YXU London-SEA Seattle/Tacoma Intl

18h 55m2 stops Calgary Detroit Metropolitan Wayne County

5:32 p.m. - 5:20 a.m.SEA Seattle/Tacoma Intl-YXU London

8h 48m2 stops Vancouver Intl Calgary

C$ 1,181WestJet

Sat, 15 Aug - Thu, 20 Aug

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WestJet flights from London, Ontario to United States

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

WestJet

11 Sep

YXU6:10 a.m.London

8h 50m

1 stop

SFO12:00 p.m.San Francisco

16 Sep

SFO6:05 p.m.San Francisco

8h 15m

1 stop

YXU5:20 a.m.London

C$ 457

WestJet

21 Oct

YXU6:10 a.m.London

9h 15m

1 stop

LAX12:25 p.m.Los Angeles Los Angeles

28 Oct

LAX7:00 a.m.Los Angeles Los Angeles

9h 15m

1 stop

YXU7:15 p.m.London

C$ 519

WestJet

14 Oct

YXU6:10 a.m.London

9h 15m

1 stop

LAX12:25 p.m.Los Angeles Los Angeles

20 Oct

LAX6:05 p.m.Los Angeles Los Angeles

8h 15m

1 stop

YXU5:20 a.m.London

C$ 526

United Airlines flights from London, Ontario to United States

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

United Airlines

2 Dec

YXU5:30 a.m.London

10h 04m

2 stops

FLL3:34 p.m.Fort Lauderdale

8 Dec

FLL11:13 a.m.Fort Lauderdale

10h 34m

2 stops

YXU9:47 p.m.London

C$ 544

United Airlines

25 Sep

YXU10:05 a.m.London

11h 52m

2 stops

FLL9:57 p.m.Fort Lauderdale

2 Oct

FLL7:00 a.m.Fort Lauderdale

10h 45m

2 stops

YXU5:45 p.m.London

C$ 547

United Airlines

10 Sep

YXU5:40 a.m.London

9h 28m

2 stops

FLL3:08 p.m.Fort Lauderdale

17 Sep

FLL7:27 a.m.Fort Lauderdale

10h 16m

2 stops

YXU5:43 p.m.London

C$ 548

momondo Fare Finder

Use the filters below to find and compare flights from London, Ontario to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonFort Lauderdale

YXU London - FLL Fort Lauderdale

YXUFLL

London

Thu 10/9

5:40 a.m.-11:29 a.m.

1 stop5h 49m

Fort Lauderdale

Thu 17/9

10:35 p.m.-9:20 a.m.

1 stop10h 45m

C$ 377

LondonFort Lauderdale

YXU London - FLL Fort Lauderdale

YXUFLL

London

Mon 2/11

5:30 a.m.-11:33 a.m.

1 stop6h 03m

Fort Lauderdale

Wed 4/11

8:00 a.m.-2:47 p.m.

1 stop6h 47m

C$ 409

LondonFort Lauderdale

YXU London - FLL Fort Lauderdale

YXUFLL

London

Mon 2/11

5:30 a.m.-11:33 a.m.

1 stop6h 03m

Fort Lauderdale

Wed 4/11

8:00 a.m.-2:47 p.m.

1 stop6h 47m

C$ 410

Quickest round-trip

LondonFort Lauderdale

YXU London - FLL Fort Lauderdale

YXUFLL

London

Sun 31/1

5:30 a.m.-11:33 a.m.

1 stop6h 03m

Fort Lauderdale

Fri 5/2

8:00 a.m.-2:42 p.m.

1 stop6h 42m

C$ 411

LondonSan Francisco

YXU London - SFO San Francisco

YXUSFO

London

Fri 11/9

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

1 stop8h 50m

San Francisco

Wed 16/9

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

1 stop8h 15m

C$ 457

LondonLos Angeles

YXU London - LAX Los Angeles Los Angeles

YXULAX

London

Wed 21/10

6:10 a.m.-12:25 p.m.

1 stop9h 15m

Los Angeles Los Angeles

Wed 28/10

7:00 a.m.-7:15 p.m.

1 stop9h 15m

C$ 519

LondonLos Angeles

YXU London - LAX Los Angeles Los Angeles

YXULAX

London

Wed 14/10

6:10 a.m.-12:25 p.m.

1 stop9h 15m

Los Angeles Los Angeles

Tue 20/10

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

1 stop8h 15m

C$ 526

LondonFort Lauderdale

YXU London - FLL Fort Lauderdale

YXUFLL

London

Wed 2/12

5:30 a.m.-3:34 p.m.

2 stops10h 04m

Fort Lauderdale

Tue 8/12

11:13 a.m.-9:47 p.m.

2 stops10h 34m

C$ 544

LondonFort Lauderdale

YXU London - FLL Fort Lauderdale

YXUFLL

London

Wed 2/12

9:15 a.m.-7:05 p.m.

2 stops9h 50m

Fort Lauderdale

Sat 12/12

8:52 p.m.-2:42 p.m.

2 stops17h 50m

C$ 544

LondonSan Francisco

YXU London - SFO San Francisco

YXUSFO

London

Fri 11/9

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

1 stop8h 50m

San Francisco

Wed 16/9

7:11 p.m.-5:20 a.m.

2 stops31h 09m

C$ 611

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 London, Ontario to United States

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

What is the cheapest month to fly to United States?

The month of September is, on average, the cheapest month to fly to United States from London, Ontario, with most prices found around C$ 566. If you don’t want to visit United States in September, then you should wait until November to fly from London, Ontario, when ticket prices are also cheap, with an average price of C$ 618.

Can stopping save me money on London, Ontario to United States flights?

You could potentially save up to 15% on your flight if you consider stops on a London, Ontario to United States flight.

Cheap London, Ontario to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London, Ontario to United States

Fastest flight time	3h 30m
Direct flights	None

The fastest flight from London, Ontario to United States takes 3h 30m

There are no direct flights from London, Ontario to United States. There are no popular flight routes from London, Ontario to United States.

Search flight deals

Frequently asked questions about flying from London, Ontario to the United States

When did momondo last update prices for flights from London Airport to United States?
Prices for flights from London Airport to United States refresh daily.
How many operators does momondo search for flights from London Airport to United States?
As of August 2026, there are 2 operators available to choose from for flights from London Airport to United States.
How old do you have to be to fly from London Airport to United States?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to United States.
What documentation or ID do you need to fly to United States?
The travel and health documents you'll need for your trip to United States may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United States. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from London, Ontario to United States

Compare and see reviews for airlines that fly from London, Ontario to United States with momondo

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom C$ 222	Free Cancellation	Rating 7.2 3,431 reviews		Search WestJet flights
Air Canada	PriceFrom C$ 257	Free Cancellation	Rating 7.1 11,462 reviews		Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from London to United States?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to United States for you.

Can I find flights from London to United States with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to United States from London with this policy.

How can momondo help me find flights from London to United States?

Once you have performed a search for London to United States flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to United States right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to United States flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.