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$ 723 Cheap Flights from San Francisco to London, Ontario in 2026/27

Find the cheapest flights from San Francisco to London

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:40 p.m. - 8:37 a.m.SFO San Francisco-YXU London

12h 57m1 stop Toronto Pearson Intl

3:20 p.m. - 9:20 p.m.YXU London-SFO San Francisco

9h 00m1 stop Toronto Pearson Intl

C$ 723Air Canada

Fri, 29 Jan - Sat, 30 Jan

4:40 p.m. - 8:37 a.m.SFO San Francisco-YXU London

12h 57m1 stop Toronto Pearson Intl

3:20 p.m. - 9:20 p.m.YXU London-SFO San Francisco

9h 00m1 stop Toronto Pearson Intl

C$ 725Air Canada

Fri, 29 Jan - Sat, 30 Jan

8:25 a.m. - 8:37 a.m.SFO San Francisco-YXU London

21h 12m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

3:20 p.m. - 9:20 p.m.YXU London-SFO San Francisco

9h 00m1 stop Toronto Pearson Intl

C$ 736Air Canada

Fri, 29 Jan - Sat, 30 Jan

6:30 a.m. - 9:52 p.m.SFO San Francisco-YXU London

12h 22m2 stops Vancouver Intl Toronto Pearson Intl

5:30 a.m. - 4:06 p.m.YXU London-SFO San Francisco

13h 36m2 stops Toronto Pearson Intl Vancouver Intl

C$ 922Air Canada

Fri, 29 Jan - Sat, 30 Jan

6:30 a.m. - 9:52 p.m.SFO San Francisco-YXU London

12h 22m2 stops Vancouver Intl Toronto Pearson Intl

5:30 a.m. - 4:06 p.m.YXU London-SFO San Francisco

13h 36m2 stops Toronto Pearson Intl Vancouver Intl

C$ 930Air Canada

Fri, 29 Jan - Sat, 30 Jan

2:30 p.m. - 8:32 a.m.SFO San Francisco-YXU London

15h 02m2 stops Vancouver Intl Toronto Pearson Intl

5:50 p.m. - 1:36 p.m.YXU London-SFO San Francisco

22h 46m2 stops Toronto Pearson Intl Vancouver Intl

C$ 1,026Air Canada

Fri, 29 Jan - Sat, 30 Jan

12:00 p.m. - 8:32 a.m.SFO San Francisco-YXU London

17h 32m1 stop Toronto Pearson Intl

5:50 p.m. - 9:20 p.m.YXU London-SFO San Francisco

30h 30m1 stop Toronto Pearson Intl

C$ 1,350Air Canada

Fri, 29 Jan - Sat, 30 Jan

4:40 p.m. - 8:32 a.m.SFO San Francisco-YXU London

12h 52m1 stop Toronto Pearson Intl

5:50 p.m. - 1:36 p.m.YXU London-SFO San Francisco

22h 46m2 stops Toronto Pearson Intl Vancouver Intl

C$ 1,507Air Canada

Fri, 29 Jan - Sat, 30 Jan

6:30 a.m. - 8:32 a.m.SFO San Francisco-YXU London

23h 02m2 stops Vancouver Intl Toronto Pearson Intl

5:50 p.m. - 1:36 p.m.YXU London-SFO San Francisco

22h 46m2 stops Toronto Pearson Intl Vancouver Intl

C$ 1,514Air Canada

Fri, 29 Jan - Sat, 30 Jan

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Air Canada flights from San Francisco to London, Ontario

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

Air Canada

29 Jan

SFO4:40 p.m.San Francisco

12h 57m

1 stop

YXU8:37 a.m.London

30 Jan

YXU3:20 p.m.London

9h 00m

1 stop

SFO9:20 p.m.San Francisco

C$ 723

Air Canada

29 Jan

SFO4:40 p.m.San Francisco

12h 57m

1 stop

YXU8:37 a.m.London

30 Jan

YXU3:20 p.m.London

9h 00m

1 stop

SFO9:20 p.m.San Francisco

C$ 725

Air Canada

29 Jan

SFO8:25 a.m.San Francisco

21h 12m

2 stops

YXU8:37 a.m.London

30 Jan

YXU3:20 p.m.London

9h 00m

1 stop

SFO9:20 p.m.San Francisco

C$ 736

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

Cheapest round-trip

Quickest round-trip

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Fri 29/1

4:40 p.m.-8:37 a.m.

1 stop12h 57m

London

Sat 30/1

3:20 p.m.-9:20 p.m.

1 stop9h 00m

C$ 723

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Fri 29/1

4:40 p.m.-8:37 a.m.

1 stop12h 57m

London

Sat 30/1

3:20 p.m.-9:20 p.m.

1 stop9h 00m

C$ 725

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Fri 29/1

8:25 a.m.-8:37 a.m.

2 stops21h 12m

London

Sat 30/1

3:20 p.m.-9:20 p.m.

1 stop9h 00m

C$ 736

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Fri 29/1

6:30 a.m.-9:52 p.m.

2 stops12h 22m

London

Sat 30/1

5:30 a.m.-4:06 p.m.

2 stops13h 36m

C$ 922

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Fri 29/1

6:30 a.m.-9:52 p.m.

2 stops12h 22m

London

Sat 30/1

5:30 a.m.-4:06 p.m.

2 stops13h 36m

C$ 930

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Fri 29/1

2:30 p.m.-8:32 a.m.

2 stops15h 02m

London

Sat 30/1

5:50 p.m.-1:36 p.m.

2 stops22h 46m

C$ 1,026

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Fri 29/1

12:00 p.m.-8:32 a.m.

1 stop17h 32m

London

Sat 30/1

5:50 p.m.-9:20 p.m.

1 stop30h 30m

C$ 1,350

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Fri 29/1

4:40 p.m.-8:32 a.m.

1 stop12h 52m

London

Sat 30/1

5:50 p.m.-1:36 p.m.

2 stops22h 46m

C$ 1,507

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Fri 29/1

6:30 a.m.-8:32 a.m.

2 stops23h 02m

London

Sat 30/1

5:50 p.m.-1:36 p.m.

2 stops22h 46m

C$ 1,514

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

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 3 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

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$ 723
Fastest flight time	9h 02m
Direct flights	None

The best flight deal from San Francisco to London, Ontario found on momondo in the last 72 hours is C$ 723

The fastest flight from San Francisco to London, Ontario takes 9h 02m

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

Search flight deals

Frequently asked questions about flying from San Francisco to London, Ontario

How far is San Francisco to London by plane?
There are 3496.6 km between San Francisco and London. 9h 02m 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.