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

Air Canada, Delta, and WestJet are the most popular carriers operating from London to San Francisco Bay Area

Which airlines fly to San Francisco Bay Area?

Porter Airlines, Air Canada and United Airlines are the top three most popular airlines that fly to San Francisco Bay Area from London, Ontario according to our data. Porter Airlines is the first choice among our users, with 45% of people opting to fly with this airline when travelling to San Francisco Bay Area. Keep in mind that there are 8 different airlines that fly to San Francisco Bay Area on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from London Airport to San Francisco Bay Area were last updated today.

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

As of July 2026, there are 2 operators available to choose from for flights from London Airport to San Francisco Bay Area.

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

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 London Airport to San Francisco Bay Area.

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

The necessary travel and health documents for your San Francisco Bay Area 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$ 288 Cheap Flights from London, Ontario to San Francisco Bay Area in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from London, Ontario to San Francisco Bay Area

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:40 p.m. - 9:55 p.m.

YXU

SFO

10h 15m

2 stops

1:00 p.m. - 1:50 p.m.

SFO

YXU

21h 50m

2 stops

C$ 407WestJet

Fri, 21 Aug - Sat, 29 Aug

6:10 a.m. - 12:00 p.m.

YXU

SFO

8h 50m

1 stop

1:00 p.m. - 1:50 p.m.

SFO

YXU

21h 50m

2 stops

C$ 410WestJet

Fri, 21 Aug - Sat, 29 Aug

6:10 a.m. - 12:00 p.m.

YXU

SFO

8h 50m

1 stop

6:05 p.m. - 5:20 a.m.

SFO

YXU

8h 15m

1 stop

C$ 431WestJet

Wed, 2 Sep - Wed, 9 Sep

6:10 a.m. - 12:00 p.m.

YXU

SFO

8h 50m

1 stop

1:00 p.m. - 5:20 a.m.

SFO

YXU

13h 20m

1 stop

C$ 433WestJet

Sat, 5 Sep - Sat, 12 Sep

6:10 a.m. - 12:00 p.m.

YXU

SFO

8h 50m

1 stop

6:00 a.m. - 5:20 a.m.

SFO

YXU

20h 20m

1 stop

C$ 440WestJet

Thu, 8 Oct - Tue, 13 Oct

6:10 a.m. - 12:00 p.m.

YXU

SFO

8h 50m

1 stop

6:00 a.m. - 4:45 p.m.

SFO

YXU

7h 45m

1 stop

C$ 452WestJet

Thu, 10 Sep - Mon, 14 Sep

6:10 a.m. - 12:00 p.m.

YXU

SFO

8h 50m

1 stop

6:00 a.m. - 4:45 p.m.

SFO

YXU

7h 45m

1 stop

C$ 454WestJet

Thu, 10 Sep - Mon, 14 Sep

5:40 a.m. - 3:21 p.m.

YXU

SFO

12h 41m

2 stops

6:40 a.m. - 9:40 p.m.

SFO

YXU

12h 00m

2 stops

C$ 475Air Canada

Thu, 10 Sep - Mon, 14 Sep

5:40 a.m. - 1:08 p.m.

YXU

SJC

10h 28m

2 stops

6:30 a.m. - 9:40 p.m.

SJC

YXU

12h 10m

2 stops

C$ 1,047United Airlines

Sat, 5 Sep - Sat, 12 Sep

3:30 p.m. - 10:50 p.m.

YXU

SJC

10h 20m

2 stops

2:10 p.m. - 9:20 a.m.

SJC

YXU

16h 10m

2 stops

C$ 1,092United Airlines

Tue, 1 Sep - Tue, 8 Sep

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WestJet flights from London, Ontario to San Francisco Bay Area

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

WestJet

21 Aug

YXU2:40 p.m.London

10h 15m

2 stops

SFO9:55 p.m.San Francisco

29 Aug

SFO1:00 p.m.San Francisco

21h 50m

2 stops

YXU1:50 p.m.London

C$ 407

WestJet

21 Aug

YXU6:10 a.m.London

8h 50m

1 stop

SFO12:00 p.m.San Francisco

29 Aug

SFO1:00 p.m.San Francisco

21h 50m

2 stops

YXU1:50 p.m.London

C$ 410

WestJet

2 Sep

YXU6:10 a.m.London

8h 50m

1 stop

SFO12:00 p.m.San Francisco

9 Sep

SFO6:05 p.m.San Francisco

8h 15m

1 stop

YXU5:20 a.m.London

C$ 431

Air Canada flights from London, Ontario to San Francisco Bay Area

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

Air Canada

10 Sep

YXU5:40 a.m.London

12h 41m

2 stops

SFO3:21 p.m.San Francisco

14 Sep

SFO6:40 a.m.San Francisco

12h 00m

2 stops

YXU9:40 p.m.London

C$ 475

Air Canada

10 Sep

YXU5:40 a.m.London

12h 41m

2 stops

SFO3:21 p.m.San Francisco

14 Sep

SFO4:30 p.m.San Francisco

22h 13m

2 stops

YXU5:43 p.m.London

C$ 521

Air Canada

5 Sep

YXU5:40 a.m.London

9h 52m

1 stop

SFO12:32 p.m.San Francisco

12 Sep

SFO5:00 a.m.San Francisco

9h 43m

2 stops

YXU5:43 p.m.London

C$ 600

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 21/8

2:40 p.m.-9:55 p.m.

2 stops10h 15m

San Francisco

Sat 29/8

1:00 p.m.-1:50 p.m.

2 stops21h 50m

C$ 407

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 21/8

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Sat 29/8

1:00 p.m.-1:50 p.m.

2 stops21h 50m

C$ 410

LondonSan Francisco

YXU - SFO

YXUSFO

London

Wed 2/9

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Wed 9/9

6:05 p.m.-5:20 a.m.

1 stop8h 15m

C$ 431

LondonSan Francisco

YXU - SFO

YXUSFO

London

Sat 5/9

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Sat 12/9

1:00 p.m.-5:20 a.m.

1 stop13h 20m

C$ 433

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 8/10

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Tue 13/10

6:00 a.m.-5:20 a.m.

1 stop20h 20m

C$ 440

Quickest round-trip

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 10/9

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Mon 14/9

6:00 a.m.-4:45 p.m.

1 stop7h 45m

C$ 452

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 10/9

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Mon 14/9

6:00 a.m.-4:45 p.m.

1 stop7h 45m

C$ 454

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 10/9

5:40 a.m.-3:21 p.m.

2 stops12h 41m

San Francisco

Mon 14/9

6:40 a.m.-9:40 p.m.

2 stops12h 00m

C$ 475

LondonSan Jose

YXU - SJC

YXUSJC

London

Sat 5/9

5:40 a.m.-1:08 p.m.

2 stops10h 28m

San Jose

Sat 12/9

6:30 a.m.-9:40 p.m.

2 stops12h 10m

C$ 1,047

LondonSan Jose

YXU - SJC

YXUSJC

London

Tue 1/9

3:30 p.m.-10:50 p.m.

2 stops10h 20m

San Jose

Tue 8/9

2:10 p.m.-9:20 a.m.

2 stops16h 10m

C$ 1,092

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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 Bay Area?

In general, February is the cheapest month to fly from London, Ontario to San Francisco Bay Area. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 0. If you aren’t able to travel during the month of February, then book flights to San Francisco Bay Area from London, Ontario during August instead. Flights to San Francisco Bay Area in August, while not as cheap as those in February, still average around C$ 261.

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

No. A direct flight is the cheapest option for a flight between London, Ontario to San Francisco Bay Area.

Cheap London, Ontario to San Francisco Bay Area flight deals and tips

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

Fastest flight time	10h 28m
Direct flights	None

The fastest flight from London, Ontario to San Francisco Bay Area takes 10h 28m

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

Search flight deals

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

When did momondo last update prices for flights from London Airport to San Francisco Bay Area?
Prices for flights from London Airport to San Francisco Bay Area were last updated today.
How many operators does momondo search for flights from London Airport to San Francisco Bay Area?
As of July 2026, there are 2 operators available to choose from for flights from London Airport to San Francisco Bay Area.
How old do you have to be to fly from London Airport to San Francisco Bay Area?
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 London Airport to San Francisco Bay Area.
What documentation or ID do you need to fly to San Francisco Bay Area?
The necessary travel and health documents for your San Francisco Bay Area 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 plane model from London, Ontario to San Francisco Bay Area?
momondo data reveals that the most frequently booked plane model on the route from London, Ontario to San Francisco Bay Area is Boeing 737-700 Passenger/BBJ1 (winglets), representing 27.28% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 26.55%, Boeing 737 MAX 8 at 24.65%, and Embraer 195 E2 at 14.96%.

Best airlines flying from London, Ontario to San Francisco Bay Area

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

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom C$ 224	Free Cancellation	Rating 7.2 3,411 reviews		Search WestJet flights
Air Canada	PriceFrom C$ 260	Free Cancellation	Rating 7.1 11,373 reviews		Search Air Canada flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to San Francisco Bay Area . Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from London to San Francisco Bay Area 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 Bay Area?

momondo helps you find the best flight between London and San Francisco Bay Area by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to San Francisco Bay Area from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.