Which 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 46% of people opting to fly with this airline when travelling to San Francisco. Keep in mind that there are 8 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?

WestJet 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 were last updated today.

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

The number of operators available for flights from London Airport to San Francisco Airport is 3 as of July 2025.

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 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 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.

C$ 242 Cheap Flights from London to San Francisco in 2025

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Find the cheapest flights from London, Ontario to San Francisco

Round-trip

One-way

Cheap round-trip flights

6:00 a.m. - 11:56 a.m.YXU-SFO

8h 56m1 stop

7:30 a.m. - 7:07 p.m.SFO-YXU

8h 37m1 stop

C$ 436WestJet

Find Deal

Sat, 30 Aug - Sat, 13 Sep

6:00 a.m. - 1:59 p.m.YXU-SFO

10h 59m2 stops

7:30 a.m. - 7:07 p.m.SFO-YXU

8h 37m1 stop

C$ 437WestJet

Find Deal

Sat, 30 Aug - Sat, 13 Sep

6:00 a.m. - 11:56 a.m.YXU-SFO

8h 56m1 stop

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

8h 07m1 stop

C$ 445WestJet

Find Deal

Sun, 31 Aug - Fri, 12 Sep

3:40 p.m. - 11:13 p.m.YXU-SFO

10h 33m2 stops

2:45 p.m. - 5:12 a.m.SFO-YXU

11h 27m2 stops

C$ 463

Find Deal

Fri, 29 Aug - Fri, 5 Sep

6:15 a.m. - 3:33 p.m.YXU-SFO

12h 18m2 stops

4:35 p.m. - 9:17 a.m.SFO-YXU

13h 42m2 stops

C$ 486Air Canada

Find Deal

Wed, 27 Aug - Wed, 10 Sep

6:00 a.m. - 11:56 a.m.YXU-SFO

8h 56m1 stop

7:10 a.m. - 9:00 p.m.SFO-YXU

10h 50m1 stop

C$ 521

Find Deal

Fri, 29 Aug - Fri, 5 Sep

6:15 a.m. - 3:33 p.m.YXU-SFO

12h 18m2 stops

4:35 p.m. - 9:17 a.m.SFO-YXU

13h 42m2 stops

C$ 529Air Canada

Find Deal

Wed, 27 Aug - Thu, 11 Sep

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

8h 54m1 stop

7:30 a.m. - 7:07 p.m.SFO-YXU

8h 37m1 stop

C$ 583Delta

Find Deal

Sun, 7 Sep - Wed, 10 Sep

6:15 a.m. - 12:53 p.m.YXU-SFO

9h 38m1 stop

11:00 p.m. - 9:17 a.m.SFO-YXU

7h 17m1 stop

C$ 602United Airlines

Find Deal

Sun, 31 Aug - Sun, 7 Sep

3:40 p.m. - 11:10 p.m.YXU-SFO

10h 30m2 stops

10:45 p.m. - 3:02 p.m.SFO-YXU

13h 17m2 stops

C$ 610United Airlines

Find Deal

Sun, 31 Aug - Sun, 7 Sep

WestJet flights from London, Ontario to San Francisco

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

WestJet

30 Aug

YXU6:00 a.m.London

8h 56m

1 stop

SFO11:56 a.m.San Francisco

13 Sep

SFO7:30 a.m.San Francisco

8h 37m

1 stop

YXU7:07 p.m.London

C$ 436

Find similar

WestJet

30 Aug

YXU6:00 a.m.London

10h 59m

2 stops

SFO1:59 p.m.San Francisco

13 Sep

SFO7:30 a.m.San Francisco

8h 37m

1 stop

YXU7:07 p.m.London

C$ 437

Find similar

WestJet

31 Aug

YXU6:00 a.m.London

8h 56m

1 stop

SFO11:56 a.m.San Francisco

12 Sep

SFO6:05 p.m.San Francisco

8h 07m

1 stop

YXU5:12 a.m.London

C$ 445

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

27 Aug

YXU6:15 a.m.London

12h 18m

2 stops

SFO3:33 p.m.San Francisco

10 Sep

SFO4:35 p.m.San Francisco

13h 42m

2 stops

YXU9:17 a.m.London

C$ 486

Find similar

Air Canada

27 Aug

YXU6:15 a.m.London

12h 18m

2 stops

SFO3:33 p.m.San Francisco

11 Sep

SFO4:35 p.m.San Francisco

13h 42m

2 stops

YXU9:17 a.m.London

C$ 529

Find similar

Air Canada

2 Sep

YXU9:55 a.m.London

12h 56m

2 stops

SFO7:51 p.m.San Francisco

12 Sep

SFO1:05 p.m.San Francisco

17h 12m

2 stops

YXU9:17 a.m.London

C$ 536

Find similar

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?

The cheapest month to fly to San Francisco from London, Ontario is in May. Flight prices, which tend to average around C$ 367, are often lower during this time because this is during the off-season. The month of June is another great option to travel to San Francisco, with average flight prices from London, Ontario averaging around C$ 404.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from London, Ontario to San Francisco is on a Saturday. Travellers who choose to depart for San Francisco on a Saturday will often find tickets for as low as C$ 498. On the other hand, Tuesday is the most expensive day to depart from London, Ontario because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 661.

What is the cheapest time of day to depart on your flight to San Francisco?

Flying to San Francisco from London, Ontario at noon is the least expensive time of day to depart. momondo users have found prices as low as C$ 505 when looking at flights departing at noon. In contrast, the most expensive time of day to depart to San Francisco is in the afternoon when prices are around C$ 625.

Can stopping save me money on London, Ontario to San Francisco flights?

You could potentially save up to 53% on your flight if you consider stops on a London, Ontario to San Francisco flight.

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

Best price found	C$ 242
Fastest flight time	8h 13m
Direct flights	None
Airports in San Francisco	1 airport

The best one-way flight to San Francisco from London, Ontario in the past 72 hours is C$ 242. The best round-trip flight deal from London, Ontario to San Francisco found on momondo in the last 72 hours is C$ 436.

The fastest flight from London, Ontario to San Francisco takes 8h 13m

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

There is 1 airport near San Francisco: San Francisco (SFO)

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How far is London to San Francisco by plane?
San Francisco is 3497.0 km away from London. In terms of flight time, this usually takes a little over 8h 13m.
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 were last updated today.
How many operators does momondo search for flights from London Airport to San Francisco Airport?
The number of operators available for flights from London Airport to San Francisco Airport is 3 as of July 2025.
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 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 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?
momondo data reveals that the most frequently booked airline on the route from London, Ontario to San Francisco is Air Canada, representing 43% of all bookings. The subsequent popular airlines are WestJet at 37% and United Airlines at 20%.

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
WestJet	PriceFrom C$ 307	Free Cancellation	Rating 7.2 2,948 reviews	Search WestJet flights
United Airlines	PriceFrom C$ 346	Free Cancellation	Rating 7.4 8,864 reviews	Search United Airlines flights
Air Canada	PriceFrom C$ 364	Free Cancellation	Rating 7.1 9,738 reviews	Search Air Canada flights

Belmont

Los Altos

Palo Alto

San Mateo

South San Francisco

Newark

San Bruno

Santa Cruz

Sunnyvale

Fremont

Turlock

Mountain View

Half Moon Bay

Mill Valley

Los Banos

Pacifica

Berkeley

Roseville

Carmel Valley

Woodland

Why use momondo?

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

It is quick and easy to find London to San Francisco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Francisco that suits you.

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

Yes. All flights to San Francisco from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Francisco from London.

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

Price alerts on flights to San Francisco 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.