Which airlines fly to London, Ontario?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to London, Ontario from San Francisco 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 5 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 San Francisco Airport to London Airport?

Prices for flights from San Francisco Airport to London Airport are updated daily.

How old do you have to be to fly from San Francisco Airport to London Airport?

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 San Francisco Airport 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$ 501 Cheap Flights from San Francisco to London in 2025

1 adult

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Find the cheapest flights from San Francisco to London

Round-trip

One-way

Cheap round-trip flights

10:15 a.m. - 5:12 a.m.SFO-YXU

15h 57m2 stops

6:00 a.m. - 11:54 a.m.YXU-SFO

8h 54m1 stop

C$ 501

Find Deal

Thu, 18 Sep - Sun, 21 Sep

10:15 a.m. - 5:12 a.m.SFO-YXU

15h 57m2 stops

6:00 a.m. - 11:54 a.m.YXU-SFO

8h 54m1 stop

C$ 505

Find Deal

Mon, 8 Sep - Tue, 16 Sep

10:15 a.m. - 5:12 a.m.SFO-YXU

15h 57m2 stops

8:00 p.m. - 11:54 a.m.YXU-SFO

18h 54m1 stop

C$ 511

Find Deal

Mon, 8 Sep - Tue, 16 Sep

6:05 p.m. - 5:12 a.m.SFO-YXU

8h 07m1 stop

6:00 a.m. - 11:54 a.m.YXU-SFO

8h 54m1 stop

C$ 515WestJet

Find Deal

Mon, 8 Sep - Tue, 16 Sep

6:05 p.m. - 5:12 a.m.SFO-YXU

8h 07m1 stop

6:00 a.m. - 11:54 a.m.YXU-SFO

8h 54m1 stop

C$ 519WestJet

Find Deal

Mon, 8 Sep - Tue, 16 Sep

10:15 a.m. - 5:12 a.m.SFO-YXU

15h 57m2 stops

8:00 p.m. - 9:30 a.m.YXU-SFO

16h 30m2 stops

C$ 527

Find Deal

Thu, 18 Sep - Sun, 21 Sep

7:30 a.m. - 5:12 a.m.SFO-YXU

18h 42m1 stop

6:00 a.m. - 11:54 a.m.YXU-SFO

8h 54m1 stop

C$ 538WestJet

Find Deal

Thu, 18 Sep - Sun, 21 Sep

11:10 p.m. - 3:17 p.m.SFO-YXU

13h 07m2 stops

6:10 a.m. - 7:05 p.m.YXU-SFO

15h 55m2 stops

C$ 935United Airlines

Find Deal

Sun, 14 Sep - Sun, 21 Sep

12:43 a.m. - 9:27 p.m.SFO-YXU

17h 44m2 stops

3:50 p.m. - 8:53 p.m.YXU-SFO

8h 03m1 stop

C$ 1,160United Airlines

Find Deal

Sat, 13 Sep - Sun, 21 Sep

12:43 a.m. - 9:27 p.m.SFO-YXU

17h 44m2 stops

6:10 a.m. - 1:35 p.m.YXU-SFO

10h 25m2 stops

C$ 1,182United Airlines

Find Deal

Sat, 13 Sep - Sun, 21 Sep

WestJet flights from San Francisco to London, Ontario

Our best WestJet deals on San Francisco to London, Ontario flight tickets

WestJet

8 Sep

SFO6:05 p.m.San Francisco

8h 07m

1 stop

YXU5:12 a.m.London

16 Sep

YXU6:00 a.m.London

8h 54m

1 stop

SFO11:54 a.m.San Francisco

C$ 515

Find similar

WestJet

8 Sep

SFO6:05 p.m.San Francisco

8h 07m

1 stop

YXU5:12 a.m.London

16 Sep

YXU6:00 a.m.London

8h 54m

1 stop

SFO11:54 a.m.San Francisco

C$ 519

Find similar

WestJet

18 Sep

SFO7:30 a.m.San Francisco

18h 42m

1 stop

YXU5:12 a.m.London

21 Sep

YXU6:00 a.m.London

8h 54m

1 stop

SFO11:54 a.m.San Francisco

C$ 538

Find similar

United Airlines flights from San Francisco to London, Ontario

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

United Airlines

14 Sep

SFO11:10 p.m.San Francisco

13h 07m

2 stops

YXU3:17 p.m.London

21 Sep

YXU6:10 a.m.London

15h 55m

2 stops

SFO7:05 p.m.San Francisco

C$ 935

Find similar

United Airlines

13 Sep

SFO12:43 a.m.San Francisco

17h 44m

2 stops

YXU9:27 p.m.London

21 Sep

YXU3:50 p.m.London

8h 03m

1 stop

SFO8:53 p.m.San Francisco

C$ 1,160

Find similar

United Airlines

13 Sep

SFO12:43 a.m.San Francisco

17h 44m

2 stops

YXU9:27 p.m.London

21 Sep

YXU6:10 a.m.London

10h 25m

2 stops

SFO1:35 p.m.San Francisco

C$ 1,182

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 18/9

10:15 a.m.-5:12 a.m.

2 stops15h 57m

London

Sun 21/9

6:00 a.m.-11:54 a.m.

1 stop8h 54m

C$ 501

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 8/9

10:15 a.m.-5:12 a.m.

2 stops15h 57m

London

Tue 16/9

6:00 a.m.-11:54 a.m.

1 stop8h 54m

C$ 505

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 8/9

10:15 a.m.-5:12 a.m.

2 stops15h 57m

London

Tue 16/9

8:00 p.m.-11:54 a.m.

1 stop18h 54m

C$ 511

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 8/9

6:05 p.m.-5:12 a.m.

1 stop8h 07m

London

Tue 16/9

6:00 a.m.-11:54 a.m.

1 stop8h 54m

C$ 515

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 8/9

6:05 p.m.-5:12 a.m.

1 stop8h 07m

London

Tue 16/9

6:00 a.m.-11:54 a.m.

1 stop8h 54m

C$ 519

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 18/9

10:15 a.m.-5:12 a.m.

2 stops15h 57m

London

Sun 21/9

8:00 p.m.-9:30 a.m.

2 stops16h 30m

C$ 527

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 18/9

7:30 a.m.-5:12 a.m.

1 stop18h 42m

London

Sun 21/9

6:00 a.m.-11:54 a.m.

1 stop8h 54m

C$ 538

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sun 14/9

11:10 p.m.-3:17 p.m.

2 stops13h 07m

London

Sun 21/9

6:10 a.m.-7:05 p.m.

2 stops15h 55m

C$ 935

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 13/9

12:43 a.m.-9:27 p.m.

2 stops17h 44m

London

Sun 21/9

3:50 p.m.-8:53 p.m.

1 stop8h 03m

C$ 1,160

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 13/9

12:43 a.m.-9:27 p.m.

2 stops17h 44m

London

Sun 21/9

6:10 a.m.-1:35 p.m.

2 stops10h 25m

C$ 1,182

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from San Francisco 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

What is the cheapest month to fly to London, Ontario?

The month of January is another great option to travel to London, Ontario, with average flight prices from San Francisco averaging around C$ 266.

When to book flights from San Francisco to London, Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to London, Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap San Francisco to London, Ontario (SFO to YXU) flight deals and tips

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

Best price found	C$ 501
Fastest flight time	8h 07m
Direct flights	None
Airports in London, Ontario	1 airport

The best flight deal from San Francisco to London, Ontario found on momondo in the last 72 hours is C$ 501

The fastest flight from San Francisco to London, Ontario takes 8h 07m

There are no direct flights from San Francisco to London, Ontario. Popular non-direct route for this connection is San Francisco Airport - London Airport.

There is 1 airport near London, Ontario: London (YXU)

Search flight deals

How far is San Francisco to London by plane?
There are 3497.0 km between San Francisco and London. 8h 07m is a normal flight duration for this route.
When did momondo last update prices for flights from San Francisco Airport to London Airport?
Prices for flights from San Francisco Airport to London Airport are updated daily.
How old do you have to be to fly from San Francisco Airport to London Airport?
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 San Francisco Airport 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.

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Port Stanley

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to London?

Finding the right flight to London from San Francisco 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 San Francisco to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for San Francisco to London flights to just show those with flexible booking policies.

How can momondo help me find flights from San Francisco to London?

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

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from San Francisco and alert you when they change.