Which airlines fly to London, Ontario?

Porter Airlines, Air Canada and United Airlines are the top three most popular airlines that fly to London, Ontario from San Francisco according to our data. Porter Airlines is the first choice among our users, with 44% 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$ 455 Cheap Flights from San Francisco to London in 2025/26

Q: What is the typical price of a round-trip flight between San Francisco and London, Ontario?

Prices are currently low for flights on this route. Typical prices usually range from C$ 676 to C$ 1,101. The lowest price recently found on this route was C$ 455.

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Find the cheapest flights from San Francisco to London

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One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:45 a.m. - 9:18 p.m.

SFO

YXU

9h 33m1 stop

5:10 a.m. - 10:45 a.m.

YXU

SFO

8h 35m1 stop

C$ 455Air Canada

Tue, 21 Apr - Sat, 25 Apr

8:45 a.m. - 9:18 p.m.

SFO

YXU

9h 33m1 stop

5:10 a.m. - 12:32 p.m.

YXU

SFO

10h 22m2 stops

C$ 462Air Canada

Tue, 21 Apr - Sat, 25 Apr

6:35 a.m. - 9:18 p.m.

SFO

YXU

11h 43m2 stops

5:10 a.m. - 12:32 p.m.

YXU

SFO

10h 22m2 stops

C$ 579Air Canada

Tue, 21 Apr - Sat, 25 Apr

1:00 p.m. - 6:34 a.m.

SFO

YXU

14h 34m1 stop

8:10 p.m. - 12:12 p.m.

YXU

SFO

19h 02m1 stop

C$ 605WestJet

Thu, 15 Jan - Mon, 19 Jan

1:00 p.m. - 6:34 a.m.

SFO

YXU

14h 34m1 stop

8:10 p.m. - 12:12 p.m.

YXU

SFO

19h 02m1 stop

C$ 719WestJet

Thu, 15 Jan - Mon, 19 Jan

1:20 p.m. - 8:46 a.m.

SFO

YXU

16h 26m2 stops

5:40 p.m. - 3:35 p.m.

YXU

SFO

24h 55m2 stops

C$ 723Air Canada

Thu, 15 Jan - Mon, 19 Jan

11:20 a.m. - 8:46 a.m.

SFO

YXU

18h 26m2 stops

9:50 a.m. - 9:22 p.m.

YXU

SFO

14h 32m2 stops

C$ 750Air Canada

Thu, 15 Jan - Mon, 19 Jan

1:20 p.m. - 8:46 a.m.

SFO

YXU

16h 26m2 stops

9:50 a.m. - 9:39 p.m.

YXU

SFO

14h 49m1 stop

C$ 785Air Canada

Thu, 15 Jan - Mon, 19 Jan

WestJet flights from San Francisco to London, Ontario

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

WestJet

15 Jan

SFO1:00 p.m.San Francisco

14h 34m

1 stop

YXU6:34 a.m.London

19 Jan

YXU8:10 p.m.London

19h 02m

1 stop

SFO12:12 p.m.San Francisco

C$ 481

Find similar

WestJet

15 Jan

SFO1:00 p.m.San Francisco

14h 34m

1 stop

YXU6:34 a.m.London

19 Jan

YXU8:10 p.m.London

19h 02m

1 stop

SFO12:12 p.m.San Francisco

C$ 605

Find similar

WestJet

15 Jan

SFO1:00 p.m.San Francisco

14h 34m

1 stop

YXU6:34 a.m.London

19 Jan

YXU8:10 p.m.London

19h 02m

1 stop

SFO12:12 p.m.San Francisco

C$ 719

Find similar

Air Canada flights from San Francisco to London, Ontario

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

Air Canada

21 Apr

SFO8:45 a.m.San Francisco

9h 33m

1 stop

YXU9:18 p.m.London

25 Apr

YXU5:10 a.m.London

8h 35m

1 stop

SFO10:45 a.m.San Francisco

C$ 455

Find similar

Air Canada

21 Apr

SFO8:45 a.m.San Francisco

9h 33m

1 stop

YXU9:18 p.m.London

25 Apr

YXU5:10 a.m.London

10h 22m

2 stops

SFO12:32 p.m.San Francisco

C$ 462

Find similar

Air Canada

15 Jan

SFO11:20 a.m.San Francisco

18h 26m

2 stops

YXU8:46 a.m.London

19 Jan

YXU5:40 p.m.London

21h 40m

2 stops

SFO12:20 p.m.San Francisco

C$ 528

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

Tue 21/4

8:45 a.m.-9:18 p.m.

1 stop9h 33m

London

Sat 25/4

5:10 a.m.-10:45 a.m.

1 stop8h 35m

C$ 455

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 21/4

8:45 a.m.-9:18 p.m.

1 stop9h 33m

London

Sat 25/4

5:10 a.m.-12:32 p.m.

2 stops10h 22m

C$ 462

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 21/4

6:35 a.m.-9:18 p.m.

2 stops11h 43m

London

Sat 25/4

5:10 a.m.-12:32 p.m.

2 stops10h 22m

C$ 579

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 15/1

1:00 p.m.-6:34 a.m.

1 stop14h 34m

London

Mon 19/1

8:10 p.m.-12:12 p.m.

1 stop19h 02m

C$ 605

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 15/1

1:00 p.m.-6:34 a.m.

1 stop14h 34m

London

Mon 19/1

8:10 p.m.-12:12 p.m.

1 stop19h 02m

C$ 719

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 15/1

1:20 p.m.-8:46 a.m.

2 stops16h 26m

London

Mon 19/1

5:40 p.m.-3:35 p.m.

2 stops24h 55m

C$ 723

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 15/1

11:20 a.m.-8:46 a.m.

2 stops18h 26m

London

Mon 19/1

9:50 a.m.-9:22 p.m.

2 stops14h 32m

C$ 750

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 15/1

1:20 p.m.-8:46 a.m.

2 stops16h 26m

London

Mon 19/1

9:50 a.m.-9:39 p.m.

1 stop14h 49m

C$ 785

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 typical price of a round-trip flight between San Francisco and London, Ontario?

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

Fastest flight time	9h 05m
Direct flights	None

The fastest flight from San Francisco to London, Ontario takes 9h 05m

There are no direct flights from San Francisco to London, Ontario. There are no popular flight routes from San Francisco to London, Ontario.

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How far is San Francisco to London by plane?
There are 3497.0 km between San Francisco and London. 9h 05m 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.

Grand Bend

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.