What airlines fly to San Francisco?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to San Francisco from London, Ontario according to our data. Air Canada is the first choice among our users, with 50% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 7 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from London to San Francisco?

Air Canada and United Airlines are the most popular carriers operating from London to San Francisco

When did momondo last update prices for flights from London Airport to San Francisco Airport?

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

How many operators does momondo search for flights from London Airport to San Francisco Airport?

As of November 2025, there is 1 operator available to choose from for flights from London Airport to San Francisco Airport.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Airport to San Francisco Airport.

What documentation or ID do you need to fly to San Francisco Airport?

The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$230 Cheap Flights from London to San Francisco in 2025/26

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Find the cheapest flights from London, Ontario to San Francisco

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Cheap round-trip flights

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5:10 am - 10:54 amYXU-SFO

8h 44m1 stop

5:00 am - 9:21 pmSFO-YXU

13h 21m2 stops

$613United Airlines

Find Deal

Tue, Dec 16 - Tue, Dec 23

9:25 am - 8:10 pmYXU-SFO

13h 45m2 stops

5:00 am - 9:21 pmSFO-YXU

13h 21m2 stops

$618United Airlines

Find Deal

Tue, Dec 16 - Tue, Dec 23

9:25 am - 9:29 pmYXU-SFO

15h 04m2 stops

5:15 am - 8:46 amSFO-YXU

24h 31m2 stops

$633United Airlines

Find Deal

Mon, Dec 15 - Mon, Dec 22

5:10 am - 10:54 amYXU-SFO

8h 44m1 stop

6:30 am - 8:46 amSFO-YXU

23h 16m2 stops

$664Air Canada

Find Deal

Tue, Dec 16 - Tue, Dec 23

5:10 am - 10:54 amYXU-SFO

8h 44m1 stop

2:30 pm - 8:46 amSFO-YXU

15h 16m1 stop

$673Air Canada

Find Deal

Tue, Dec 16 - Tue, Dec 23

5:10 am - 10:54 amYXU-SFO

8h 44m1 stop

5:15 am - 8:46 amSFO-YXU

24h 31m2 stops

$722United Airlines

Find Deal

Mon, Dec 15 - Mon, Dec 22

5:15 am - 10:54 amYXU-SFO

8h 39m1 stop

8:50 am - 9:21 pmSFO-YXU

9h 31m1 stop

$733United Airlines

Find Deal

Fri, Nov 14 - Sun, Nov 16

5:15 am - 3:29 pmYXU-SFO

13h 14m2 stops

7:10 pm - 5:05 pmSFO-YXU

18h 55m2 stops

$738United Airlines

Find Deal

Fri, Nov 14 - Sun, Nov 16

5:15 am - 10:54 amYXU-SFO

8h 39m1 stop

12:43 am - 9:21 pmSFO-YXU

17h 38m2 stops

$768United Airlines

Find Deal

Fri, Nov 14 - Sat, Nov 15

8:10 pm - 3:35 pmYXU-SFO

22h 25m2 stops

11:59 pm - 6:34 amSFO-YXU

27h 35m3 stops

$780Multiple Airlines

Find Deal

Tue, Dec 16 - Tue, Dec 23

United Airlines flights from London, Ontario to San Francisco

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

United Airlines

Dec 16

YXU5:10 amLondon

8h 44m

1 stop

SFO10:54 amSan Francisco

Dec 23

SFO5:00 amSan Francisco

13h 21m

2 stops

YXU9:21 pmLondon

$613

Find similar

United Airlines

Dec 16

YXU9:25 amLondon

13h 45m

2 stops

SFO8:10 pmSan Francisco

Dec 23

SFO5:00 amSan Francisco

13h 21m

2 stops

YXU9:21 pmLondon

$618

Find similar

United Airlines

Dec 15

YXU9:25 amLondon

15h 04m

2 stops

SFO9:29 pmSan Francisco

Dec 22

SFO5:15 amSan Francisco

24h 31m

2 stops

YXU8:46 amLondon

$633

Find similar

Air Canada flights from London, Ontario to San Francisco

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

Air Canada

Dec 16

YXU5:10 amLondon

8h 44m

1 stop

SFO10:54 amSan Francisco

Dec 23

SFO6:30 amSan Francisco

23h 16m

2 stops

YXU8:46 amLondon

$664

Find similar

Air Canada

Dec 16

YXU5:10 amLondon

8h 44m

1 stop

SFO10:54 amSan Francisco

Dec 23

SFO2:30 pmSan Francisco

15h 16m

1 stop

YXU8:46 amLondon

$673

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 12/16

5:10 am-10:54 am

1 stop8h 44m

San Francisco

Tue 12/23

5:00 am-9:21 pm

2 stops13h 21m

$613

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 12/16

9:25 am-8:10 pm

2 stops13h 45m

San Francisco

Tue 12/23

5:00 am-9:21 pm

2 stops13h 21m

$618

LondonSan Francisco

YXU - SFO

YXUSFO

London

Mon 12/15

9:25 am-9:29 pm

2 stops15h 04m

San Francisco

Mon 12/22

5:15 am-8:46 am

2 stops24h 31m

$633

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 12/16

5:10 am-10:54 am

1 stop8h 44m

San Francisco

Tue 12/23

6:30 am-8:46 am

2 stops23h 16m

$664

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 12/16

5:10 am-10:54 am

1 stop8h 44m

San Francisco

Tue 12/23

2:30 pm-8:46 am

1 stop15h 16m

$673

LondonSan Francisco

YXU - SFO

YXUSFO

London

Mon 12/15

5:10 am-10:54 am

1 stop8h 44m

San Francisco

Mon 12/22

5:15 am-8:46 am

2 stops24h 31m

$722

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 11/14

5:15 am-10:54 am

1 stop8h 39m

San Francisco

Sun 11/16

8:50 am-9:21 pm

1 stop9h 31m

$733

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 11/14

5:15 am-3:29 pm

2 stops13h 14m

San Francisco

Sun 11/16

7:10 pm-5:05 pm

2 stops18h 55m

$738

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 11/14

5:15 am-10:54 am

1 stop8h 39m

San Francisco

Sat 11/15

12:43 am-9:21 pm

2 stops17h 38m

$768

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 12/16

8:10 pm-3:35 pm

2 stops22h 25m

San Francisco

Tue 12/23

11:59 pm-6:34 am

3 stops27h 35m

$780

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

How to get the cheapest flight ticket from London, Ontario to San Francisco

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 San Francisco?

If you aren’t able to travel to San Francisco during the month of August, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $267.

When to book flights from London, Ontario to San Francisco

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

Estimated round-trip price

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

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

Direct flights	None

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

Search flight deals

How far is London to San Francisco by plane?
The distance between London and San Francisco is about 2173.0 mi. Typically, this will take 8h 39m by plane in normal conditions.
When did momondo last update prices for flights from London Airport to San Francisco Airport?
Prices for flights from London Airport to San Francisco Airport are updated daily.
How many operators does momondo search for flights from London Airport to San Francisco Airport?
As of November 2025, there is 1 operator available to choose from for flights from London Airport to San Francisco Airport.
How old do you have to be to fly from London Airport to San Francisco Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Airport to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from London, Ontario to San Francisco?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London, Ontario to San Francisco is Air Canada (100% of total bookings).

Best airlines flying from London, Ontario to San Francisco

Compare and see reviews for airlines that fly from London, Ontario to San Francisco with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $222	Free Cancellation	Rating 7.1 10,392 reviews		Search Air Canada flights

Santa Cruz

Carmel-by-the-Sea

Modesto

Sonoma

Bodega Bay

Roseville

Calistoga

Hayward

Big Sur

Santa Clara

Daly City

Fremont

Berkeley

Vallejo

Walnut Creek

Half Moon Bay

Salinas

Turlock

Livermore

Pacific Grove

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from London.

Can I find flights from London to San Francisco with flexible booking policies on momondo?

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

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

Once all potential London to San Francisco flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for London to San Francisco 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.

An easier way to manage your San Francisco trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from London, Ontario to San Francisco from $230

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London, Ontario to San Francisco departing on 12/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

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Price Alerts

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Find the cheapest flights from London, Ontario to San Francisco

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United Airlines flights from London, Ontario to San Francisco

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

Air Canada flights from London, Ontario to San Francisco

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

momondo Fare Finder

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

See travel insights to San Francisco from

How to get the cheapest flight ticket from London, Ontario to San Francisco

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

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of August, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $267.

What is the cheapest airline that flies from London to San Francisco?

Air Canada and United Airlines are the most popular carriers operating from London to San Francisco

What airlines fly to San Francisco?

When to book flights from London, Ontario to San Francisco

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

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

Direct flights

How far is London to San Francisco by plane?

When did momondo last update prices for flights from London Airport to San Francisco Airport?

How many operators does momondo search for flights from London Airport to San Francisco Airport?

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

What documentation or ID do you need to fly to San Francisco Airport?

What is the most popular airline from London, Ontario to San Francisco?

Best airlines flying from London, Ontario to San Francisco

Compare and see reviews for airlines that fly from London, Ontario to San Francisco with momondo

Traveling to a place near San Francisco?

Why use momondo?

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

Can I find flights from London to San Francisco with flexible booking policies on momondo?

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

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

An easier way to manage your San Francisco trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California