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

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

What 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 48% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 8 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 old do you have to be to fly from London Airport to United States?

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 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.

$184 Cheap Flights from London to the United States in 2026

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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.

5:10 am - 10:55 am

YXU

SFO

8h 45m

1 stop

8:05 am - 9:38 pm

SFO

YXU

10h 33m

2 stops

$344Air Canada

dt., abr. 14 - dt., maig 5

5:10 am - 12:30 pm

YXU

SFO

10h 20m

2 stops

8:05 am - 9:38 pm

SFO

YXU

10h 33m

2 stops

$350Air Canada

dt., abr. 14 - dt., maig 5

9:25 am - 9:22 pm

YXU

SFO

14h 57m

2 stops

8:05 am - 9:38 pm

SFO

YXU

10h 33m

2 stops

$353Air Canada

dc., abr. 15 - dt., maig 5

5:10 am - 10:56 am

YXU

MCO

5h 46m

1 stop

7:00 am - 9:38 pm

MCO

YXU

14h 38m

1 stop

$358Air Canada

dv., maig 8 - dv., maig 15

8:00 am - 12:05 pm

YXU

SFO

31h 05m

1 stop

6:00 am - 4:45 pm

SFO

YXU

7h 45m

1 stop

$376WestJet

dt., abr. 14 - dt., maig 5

8:00 am - 12:05 pm

YXU

SFO

31h 05m

1 stop

6:00 am - 4:45 pm

SFO

YXU

7h 45m

1 stop

$380WestJet

dt., abr. 14 - dt., maig 5

9:30 am - 3:35 pm

YXU

LAX

9h 05m

1 stop

12:15 am - 9:38 pm

LAX

YXU

18h 23m

2 stops

$469United Airlines

dt., maig 5 - dl., maig 11

2:40 pm - 9:40 pm

YXU

LAS

10h 00m

2 stops

8:30 am - 7:50 pm

LAS

YXU

8h 20m

1 stop

$473WestJet

dg., jul.. 12 - dv., jul.. 17

5:10 am - 1:43 pm

YXU

LAX

11h 33m

2 stops

12:15 am - 5:33 pm

LAX

YXU

14h 18m

2 stops

$474United Airlines

dt., maig 5 - dl., maig 11

9:30 am - 6:20 pm

YXU

TPA

8h 50m

2 stops

7:05 am - 5:33 pm

TPA

YXU

10h 28m

2 stops

$483United Airlines

dl., juny 8 - dc., juny 10

Air Canada flights from London, Ontario to United States

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

Air Canada

Apr 14

YXU5:10 amLondon

8h 45m

1 stop

SFO10:55 amSan Francisco

May 5

SFO8:05 amSan Francisco

10h 33m

2 stops

YXU9:38 pmLondon

$344

Air Canada

Apr 14

YXU5:10 amLondon

10h 20m

2 stops

SFO12:30 pmSan Francisco

May 5

SFO8:05 amSan Francisco

10h 33m

2 stops

YXU9:38 pmLondon

$350

Air Canada

Apr 15

YXU9:25 amLondon

14h 57m

2 stops

SFO9:22 pmSan Francisco

May 5

SFO8:05 amSan Francisco

10h 33m

2 stops

YXU9:38 pmLondon

$353

WestJet flights from London, Ontario to United States

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

WestJet

Apr 14

YXU8:00 amLondon

31h 05m

1 stop

SFO12:05 pmSan Francisco

May 5

SFO6:00 amSan Francisco

7h 45m

1 stop

YXU4:45 pmLondon

$376

WestJet

Apr 14

YXU8:00 amLondon

31h 05m

1 stop

SFO12:05 pmSan Francisco

May 5

SFO6:00 amSan Francisco

7h 45m

1 stop

YXU4:45 pmLondon

$380

WestJet

Apr 15

YXU8:10 pmLondon

19h 00m

1 stop

SFO12:10 pmSan Francisco

May 5

SFO6:00 amSan Francisco

7h 45m

1 stop

YXU4:45 pmLondon

$388

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

LondonSan Francisco

YXU - SFO

YXUSFO

London

dt. 4/14

5:10 am-10:55 am

1 stop8h 45m

San Francisco

dt. 5/5

8:05 am-9:38 pm

2 stops10h 33m

$344

LondonSan Francisco

YXU - SFO

YXUSFO

London

dt. 4/14

5:10 am-12:30 pm

2 stops10h 20m

San Francisco

dt. 5/5

8:05 am-9:38 pm

2 stops10h 33m

$350

LondonSan Francisco

YXU - SFO

YXUSFO

London

dc. 4/15

9:25 am-9:22 pm

2 stops14h 57m

San Francisco

dt. 5/5

8:05 am-9:38 pm

2 stops10h 33m

$353

LondonOrlando

YXU - MCO

YXUMCO

London

dv. 5/8

5:10 am-10:56 am

1 stop5h 46m

Orlando

dv. 5/15

7:00 am-9:38 pm

1 stop14h 38m

$358

LondonSan Francisco

YXU - SFO

YXUSFO

London

dt. 4/14

8:00 am-12:05 pm

1 stop31h 05m

San Francisco

dt. 5/5

6:00 am-4:45 pm

1 stop7h 45m

$376

LondonSan Francisco

YXU - SFO

YXUSFO

London

dt. 4/14

8:00 am-12:05 pm

1 stop31h 05m

San Francisco

dt. 5/5

6:00 am-4:45 pm

1 stop7h 45m

$380

LondonLos Angeles

YXU - LAX

YXULAX

London

dt. 5/5

9:30 am-3:35 pm

1 stop9h 05m

Los Angeles

dl. 5/11

12:15 am-9:38 pm

2 stops18h 23m

$469

Quickest round-trip

LondonLas Vegas

YXU - LAS

YXULAS

London

dg. 7/12

2:40 pm-9:40 pm

2 stops10h 00m

Las Vegas Harry Reid Intl

dv. 7/17

8:30 am-7:50 pm

1 stop8h 20m

$473

LondonLos Angeles

YXU - LAX

YXULAX

London

dt. 5/5

5:10 am-1:43 pm

2 stops11h 33m

Los Angeles

dl. 5/11

12:15 am-5:33 pm

2 stops14h 18m

$474

LondonTampa

YXU - TPA

YXUTPA

London

dl. 6/8

9:30 am-6:20 pm

2 stops8h 50m

Tampa

dc. 6/10

7:05 am-5:33 pm

2 stops10h 28m

$483

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 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 to United States flights?

There is only 1 cabin class available to choose from on London 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?

You could potentially save up to 19% 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 45m
Direct flights	None

The fastest flight from London, Ontario to United States takes 3h 45m

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

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 old do you have to be to fly from London Airport to United States?
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 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 Boeing 737 MAX 8, representing 70.83% of all bookings. The subsequent popular models are Boeing 737-800 at 8.33%, Airbus A321-100/200 at 4.17%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 4.17%.

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 $590	Free Cancellation	Rating 7.1 10,836 reviews		Search Air Canada flights

Why use momondo?

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

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

All flight searches from London to United States on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to United States from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to United States from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.