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

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

Which airlines fly to United States?

Air Canada, Porter Airlines and WestJet are the top three most popular airlines that fly to United States from London, Ontario according to our data. Air Canada is the first choice among our users, with 38% of people opting to fly with this airline when travelling to United States. Keep in mind that there are 12 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

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 September 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$ 232 Cheap Flights from London, Ontario to the United States in 2026/27

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

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:15 a.m. - 1:25 p.m.YXU London-FLL Fort Lauderdale

3h 10mdirect

1:55 p.m. - 5:00 p.m.FLL Fort Lauderdale-YXU London

3h 05mdirect

C$ 240Porter Airlines

Mon, 30 Nov - Fri, 4 Dec

10:15 a.m. - 1:25 p.m.YXU London-FLL Fort Lauderdale

3h 10mdirect

1:55 p.m. - 5:00 p.m.FLL Fort Lauderdale-YXU London

3h 05mdirect

C$ 240Porter Airlines

Sun, 29 Nov - Fri, 4 Dec

6:15 a.m. - 9:25 a.m.YXU London-FLL Fort Lauderdale

3h 10mdirect

10:40 a.m. - 1:45 p.m.FLL Fort Lauderdale-YXU London

3h 05mdirect

C$ 262Porter Airlines

Mon, 11 Jan - Mon, 18 Jan

6:15 a.m. - 9:25 a.m.YXU London-FLL Fort Lauderdale

3h 10mdirect

10:40 a.m. - 1:45 p.m.FLL Fort Lauderdale-YXU London

3h 05mdirect

C$ 262Porter Airlines

Wed, 13 Jan - Mon, 18 Jan

9:15 a.m. - 3:04 p.m.YXU London-TPA Tampa

5h 49m1 stop Toronto Pearson Intl

4:00 p.m. - 9:57 p.m.TPA Tampa-YXU London

5h 57m1 stop Toronto Pearson Intl

C$ 428Air Canada

Mon, 23 Nov - Fri, 27 Nov

9:15 a.m. - 3:04 p.m.YXU London-TPA Tampa

5h 49m1 stop Toronto Pearson Intl

1:30 p.m. - 9:57 p.m.TPA Tampa-YXU London

8h 27m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

C$ 433Air Canada

Mon, 23 Nov - Fri, 27 Nov

9:15 a.m. - 9:09 p.m.YXU London-TPA Tampa

11h 54m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

4:00 p.m. - 9:57 p.m.TPA Tampa-YXU London

5h 57m1 stop Toronto Pearson Intl

C$ 434Air Canada

Sat, 31 Oct - Wed, 4 Nov

9:15 a.m. - 7:08 p.m.YXU London-TPA Tampa

9h 53m2 stops Toronto Pearson Intl Newark

9:06 a.m. - 9:52 p.m.TPA Tampa-YXU London

12h 46m3 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl Toronto Pearson Intl

C$ 596United Airlines

Fri, 5 Feb - Sat, 13 Feb

5:30 a.m. - 3:12 p.m.YXU London-SAN San Diego

12h 42m2 stops Toronto Pearson Intl Chicago O'Hare Intl

9:45 p.m. - 2:47 p.m.SAN San Diego-YXU London

14h 02m2 stops Washington, D.C. Dulles Intl Toronto Pearson Intl

C$ 613United Airlines

Mon, 23 Nov - Thu, 26 Nov

8:20 p.m. - 7:24 p.m.YXU London-SFO San Francisco

26h 04m2 stops Toronto Pearson Intl Houston George Bush Intcntl

6:38 p.m. - 2:50 p.m.SFO San Francisco-YXU London

17h 12m2 stops Chicago O'Hare Intl Toronto Pearson Intl

C$ 614United Airlines

Tue, 13 Oct - Tue, 20 Oct

Cheap last-minute 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

12:30 p.m. - 5:43 p.m.FLL Fort Lauderdale-YXU London

5h 13m1 stop Toronto Pearson Intl

C$ 569Air Canada

Tue, 29 Sep - Tue, 6 Oct

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

5h 49m1 stop Toronto Pearson Intl

8:55 p.m. - 2:50 p.m.FLL Fort Lauderdale-YXU London

17h 55m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

C$ 623Air Canada

Tue, 29 Sep - Tue, 6 Oct

5:40 a.m. - 9:39 p.m.YXU London-FLL Fort Lauderdale

15h 59m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

8:55 p.m. - 2:50 p.m.FLL Fort Lauderdale-YXU London

17h 55m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

C$ 676Air Canada

Tue, 29 Sep - Tue, 6 Oct

3:30 p.m. - 11:53 a.m.YXU London-FLL Fort Lauderdale

20h 23m2 stops Toronto Pearson Intl Newark

6:30 p.m. - 5:43 p.m.FLL Fort Lauderdale-YXU London

23h 13m3 stops Houston George Bush Intcntl Denver Intl Toronto Pearson Intl

C$ 700United Airlines

Tue, 29 Sep - Tue, 6 Oct

6:20 p.m. - 11:49 p.m.YXU London-MCO Orlando

5h 29m1 stop Toronto Pearson Intl

7:30 a.m. - 5:43 p.m.MCO Orlando-YXU London

10h 13m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

C$ 754Air Canada

Thu, 24 Sep - Wed, 30 Sep

5:40 a.m. - 4:44 p.m.YXU London-MCO Orlando

11h 04m2 stops Toronto Pearson Intl Chicago O'Hare Intl

6:00 a.m. - 5:43 p.m.MCO Orlando-YXU London

11h 43m2 stops Newark Toronto Pearson Intl

C$ 850United Airlines

Thu, 24 Sep - Wed, 30 Sep

5:40 a.m. - 9:57 p.m.YXU London-FLL Fort Lauderdale

16h 17m2 stops Toronto Pearson Intl Chicago O'Hare Intl

12:30 p.m. - 7:40 p.m.FLL Fort Lauderdale-YXU London

7h 10m1 stop Toronto Pearson Intl

C$ 869Multiple Airlines

Mon, 28 Sep - Mon, 5 Oct

5:40 a.m. - 4:38 p.m.YXU London-FLL Fort Lauderdale

10h 58m2 stops Toronto Pearson Intl Chicago O'Hare Intl

6:30 p.m. - 2:50 p.m.FLL Fort Lauderdale-YXU London

20h 20m2 stops Houston George Bush Intcntl Toronto Pearson Intl

C$ 869United Airlines

Mon, 28 Sep - Mon, 5 Oct

5:55 p.m. - 9:55 p.m.YXU London-SFO San Francisco

31h 00m1 stop Calgary

6:00 a.m. - 5:20 a.m.SFO San Francisco-YXU London

20h 20m1 stop Calgary

C$ 1,434WestJet

Fri, 25 Sep - Mon, 28 Sep

6:10 a.m. - 7:36 p.m.YXU London-SFO San Francisco

16h 26m2 stops Calgary Los Angeles

6:00 a.m. - 5:20 a.m.SFO San Francisco-YXU London

20h 20m1 stop Calgary

C$ 1,534WestJet

Fri, 25 Sep - Mon, 28 Sep

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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

22 Oct

YXU6:10 a.m.London

8h 50m

1 stop

SFO12:00 p.m.San Francisco

29 Oct

SFO5:40 p.m.San Francisco

9h 55m

1 stop

YXU6:35 a.m.London

C$ 342

WestJet

2 Oct

YXU6:10 a.m.London

8h 50m

1 stop

SFO12:00 p.m.San Francisco

6 Oct

SFO1:00 p.m.San Francisco

13h 20m

1 stop

YXU5:20 a.m.London

C$ 509

WestJet

22 Oct

YXU6:10 a.m.London

8h 50m

1 stop

SFO12:00 p.m.San Francisco

29 Oct

SFO5:40 p.m.San Francisco

9h 55m

1 stop

YXU6:35 a.m.London

C$ 538

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

11h 23m

2 stops

FLL4:53 p.m.Fort Lauderdale

3 Dec

FLL6:30 a.m.Fort Lauderdale

15h 22m

2 stops

YXU9:52 p.m.London

C$ 569

United Airlines

10 Nov

YXU5:30 a.m.London

9h 35m

2 stops

FLL3:05 p.m.Fort Lauderdale

16 Nov

FLL8:52 p.m.Fort Lauderdale

17h 55m

2 stops

YXU2:47 p.m.London

C$ 571

United Airlines

2 Oct

YXU10:05 a.m.London

12h 27m

2 stops

SFO7:32 p.m.San Francisco

6 Oct

SFO11:30 p.m.San Francisco

12h 20m

2 stops

YXU2:50 p.m.London

C$ 575

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

Quickest round-trip

LondonFort Lauderdale

YXU London - FLL Fort Lauderdale

YXUFLL

London

Mon 30/11

10:15 a.m.-1:25 p.m.

Nonstop3h 10m

Fort Lauderdale

Fri 4/12

1:55 p.m.-5:00 p.m.

Nonstop3h 05m

C$ 240

LondonFort Lauderdale

YXU London - FLL Fort Lauderdale

YXUFLL

London

Sun 29/11

10:15 a.m.-1:25 p.m.

Nonstop3h 10m

Fort Lauderdale

Fri 4/12

1:55 p.m.-5:00 p.m.

Nonstop3h 05m

C$ 240

LondonFort Lauderdale

YXU London - FLL Fort Lauderdale

YXUFLL

London

Mon 11/1

6:15 a.m.-9:25 a.m.

Nonstop3h 10m

Fort Lauderdale

Mon 18/1

10:40 a.m.-1:45 p.m.

Nonstop3h 05m

C$ 262

LondonFort Lauderdale

YXU London - FLL Fort Lauderdale

YXUFLL

London

Wed 13/1

6:15 a.m.-9:25 a.m.

Nonstop3h 10m

Fort Lauderdale

Mon 18/1

10:40 a.m.-1:45 p.m.

Nonstop3h 05m

C$ 262

LondonTampa

YXU London - TPA Tampa

YXUTPA

London

Mon 23/11

9:15 a.m.-3:04 p.m.

1 stop5h 49m

Tampa

Fri 27/11

4:00 p.m.-9:57 p.m.

1 stop5h 57m

C$ 428

LondonTampa

YXU London - TPA Tampa

YXUTPA

London

Mon 23/11

9:15 a.m.-3:04 p.m.

1 stop5h 49m

Tampa

Fri 27/11

1:30 p.m.-9:57 p.m.

2 stops8h 27m

C$ 433

LondonTampa

YXU London - TPA Tampa

YXUTPA

London

Sat 31/10

9:15 a.m.-9:09 p.m.

2 stops11h 54m

Tampa

Wed 4/11

4:00 p.m.-9:57 p.m.

1 stop5h 57m

C$ 434

LondonTampa

YXU London - TPA Tampa

YXUTPA

London

Fri 5/2

9:15 a.m.-7:08 p.m.

2 stops9h 53m

Tampa

Sat 13/2

9:06 a.m.-9:52 p.m.

3 stops12h 46m

C$ 596

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Mon 23/11

5:30 a.m.-3:12 p.m.

2 stops12h 42m

San Diego

Thu 26/11

9:45 p.m.-2:47 p.m.

2 stops14h 02m

C$ 613

LondonSan Francisco

YXU London - SFO San Francisco

YXUSFO

London

Tue 13/10

8:20 p.m.-7:24 p.m.

2 stops26h 04m

San Francisco

Tue 20/10

6:38 p.m.-2:50 p.m.

2 stops17h 12m

C$ 614

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 April is, on average, the cheapest month to fly to United States from London, Ontario, with most prices found around C$ 627. If you don’t want to visit United States in April, then you should wait until November to fly from London, Ontario, when ticket prices are also cheap, with an average price of C$ 651.

What is the cheapest London to United States flight route?

Fly from London to Orlando for the best London - United States flight prices

What cabin class options are available on London, Ontario to United States flights?

There is only 1 cabin class available to choose from on London, Ontario to United States 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 London, Ontario to United States flights?

No. A direct flight is the cheapest option for a flight between London, Ontario to United States.

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

Best price found	C$ 232
Fastest flight time	2h 55m
Direct flights	Mon, Tue, Wed, Fri, Sat and Sun
Airports in United States	4,301 airports

The best one-way flight to United States from London, Ontario in the past 72 hours is C$ 232. The best round-trip flight deal from London, Ontario to United States found on momondo in the last 72 hours is C$ 240.

The fastest flight from London, Ontario to United States takes 2h 55m

Direct flights go from London, Ontario to United States on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Porter Airlines.

There are 4,301 airports in United States. From London, Ontario there are direct flights to Fort Lauderdale (FLL), Orlando (MCO).

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 September 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.
What is the most popular plane model from London, Ontario to United States?
momondo data reveals that the most frequently booked plane model on the route from London, Ontario to United States is Embraer 195 E2, representing 80.00% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 10.00%, Airbus A321-100/200 at 5.00%, and Airbus A330-300 at 5.00%.

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
Air Canada	PriceFrom C$ 444	Free Cancellation	Rating 7.1 11,676 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.