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Cheap flights from London, Ontario to San Francisco Bay Area from C$ 257

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 Bay Area departing on 30/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London, Ontario to San Francisco Bay Area

Cheap round-trip flights

Air Canada Logo
5:45 a.m. - 2:56 p.m.YXU-SFO
12h 11m2 stops
Air Canada Logo
8:49 a.m. - 9:21 p.m.SFO-YXU
9h 32m1 stop
C$ 532Air Canada
Find Deal
Thu, 5 Feb - Mon, 9 Feb
United Airlines Logo
9:25 a.m. - 5:17 p.m.YXU-SFO
10h 52m2 stops
United Airlines Logo
12:43 a.m. - 5:05 p.m.SFO-YXU
13h 22m2 stops
C$ 540United Airlines
Find Deal
Thu, 5 Feb - Sun, 8 Feb
United Airlines Logo
5:45 a.m. - 10:54 a.m.YXU-SFO
8h 09m1 stop
United Airlines Logo
8:30 a.m. - 9:21 p.m.SFO-YXU
9h 51m1 stop
C$ 581United Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
United Airlines Logo
5:45 a.m. - 12:12 a.m.YXU-SFO
21h 27m2 stops
United Airlines Logo
8:30 a.m. - 9:21 p.m.SFO-YXU
9h 51m1 stop
C$ 590United Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
United Airlines Logo
3:40 p.m. - 9:32 p.m.YXU-SFO
8h 52m1 stop
United Airlines Logo
5:00 a.m. - 9:17 a.m.SFO-YXU
25h 17m2 stops
C$ 627United Airlines
Find Deal
Sat, 4 Oct - Wed, 8 Oct
Logo
6:15 a.m. - 2:40 p.m.YXU-SFO
11h 25m2 stops
Logo
11:35 a.m. - 9:17 a.m.SFO-YXU
18h 42m2 stops
C$ 634
Find Deal
Sat, 4 Oct - Wed, 8 Oct
United Airlines Logo
5:45 a.m. - 9:05 p.m.YXU-SFO
18h 20m2 stops
United Airlines Logo
5:00 a.m. - 9:21 p.m.SFO-YXU
13h 21m2 stops
C$ 670United Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
United Airlines Logo
5:45 a.m. - 10:54 a.m.YXU-SFO
8h 09m1 stop
United Airlines Logo
12:43 a.m. - 5:05 p.m.SFO-YXU
13h 22m2 stops
C$ 698United Airlines
Find Deal
Thu, 30 Oct - Wed, 5 Nov
United Airlines Logo
5:45 a.m. - 9:05 p.m.YXU-SFO
18h 20m2 stops
United Airlines Logo
12:43 a.m. - 5:05 p.m.SFO-YXU
13h 22m2 stops
C$ 706United Airlines
Find Deal
Thu, 30 Oct - Wed, 5 Nov
Air Canada Logo
9:25 a.m. - 8:56 p.m.YXU-SJC
14h 31m3 stops
Air Canada Logo
8:40 a.m. - 8:46 a.m.SJC-YXU
21h 06m3 stops
C$ 2,129Air Canada
Find Deal
Thu, 5 Feb - Mon, 9 Feb

United Airlines flights from London, Ontario to San Francisco Bay Area

Our best United Airlines deals on London, Ontario to San Francisco Bay Area flight tickets
United Airlines
5 Feb
YXU9:25 a.m.London
10h 52m
2 stops
SFO5:17 p.m.San Francisco
8 Feb
SFO12:43 a.m.San Francisco
13h 22m
2 stops
YXU5:05 p.m.London
C$ 540
Find similar
United Airlines
30 Oct
YXU5:45 a.m.London
8h 09m
1 stop
SFO10:54 a.m.San Francisco
6 Nov
SFO8:30 a.m.San Francisco
9h 51m
1 stop
YXU9:21 p.m.London
C$ 581
Find similar
United Airlines
30 Oct
YXU5:45 a.m.London
21h 27m
2 stops
SFO12:12 a.m.San Francisco
6 Nov
SFO8:30 a.m.San Francisco
9h 51m
1 stop
YXU9:21 p.m.London
C$ 590
Find similar

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
5 Feb
YXU5:45 a.m.London
12h 11m
2 stops
SFO2:56 p.m.San Francisco
9 Feb
SFO8:49 a.m.San Francisco
9h 32m
1 stop
YXU9:21 p.m.London
C$ 532
Find similar
Air Canada
5 Feb
YXU9:25 a.m.London
14h 31m
3 stops
SJC8:56 p.m.San Jose
9 Feb
SJC8:40 a.m.San Jose
21h 06m
3 stops
YXU8:46 a.m.London
C$ 2,129
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London, Ontario to San Francisco Bay Area that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 15 September 2025.
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

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 5/2

5:45 a.m.-2:56 p.m.

2 stops12h 11m

San Francisco

Mon 9/2

8:49 a.m.-9:21 p.m.

1 stop9h 32m

C$ 532

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 5/2

9:25 a.m.-5:17 p.m.

2 stops10h 52m

San Francisco

Sun 8/2

12:43 a.m.-5:05 p.m.

2 stops13h 22m

C$ 540

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 30/10

5:45 a.m.-10:54 a.m.

1 stop8h 09m

San Francisco

Thu 6/11

8:30 a.m.-9:21 p.m.

1 stop9h 51m

C$ 581

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 30/10

5:45 a.m.-12:12 a.m.

2 stops21h 27m

San Francisco

Thu 6/11

8:30 a.m.-9:21 p.m.

1 stop9h 51m

C$ 590

LondonSan Francisco

YXU - SFO

YXUSFO

London

Sat 4/10

3:40 p.m.-9:32 p.m.

1 stop8h 52m

San Francisco

Wed 8/10

5:00 a.m.-9:17 a.m.

2 stops25h 17m

C$ 627

LondonSan Francisco

YXU - SFO

YXUSFO

London

Sat 4/10

6:15 a.m.-2:40 p.m.

2 stops11h 25m

San Francisco

Wed 8/10

11:35 a.m.-9:17 a.m.

2 stops18h 42m

C$ 634

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 30/10

5:45 a.m.-9:05 p.m.

2 stops18h 20m

San Francisco

Thu 6/11

5:00 a.m.-9:21 p.m.

2 stops13h 21m

C$ 670

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 30/10

5:45 a.m.-10:54 a.m.

1 stop8h 09m

San Francisco

Wed 5/11

12:43 a.m.-5:05 p.m.

2 stops13h 22m

C$ 698

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 30/10

5:45 a.m.-9:05 p.m.

2 stops18h 20m

San Francisco

Wed 5/11

12:43 a.m.-5:05 p.m.

2 stops13h 22m

C$ 706

LondonSan Jose

YXU - SJC

YXUSJC

London

Thu 5/2

9:25 a.m.-8:56 p.m.

3 stops14h 31m

San Jose

Mon 9/2

8:40 a.m.-8:46 a.m.

3 stops21h 06m

C$ 2,129

Flights are sorted by cheapest round-trip flights first.

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See travel insights to San Francisco Bay Area from

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

What is the cheapest month to fly to San Francisco Bay Area?

In general, August 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$ 256. If you aren’t able to travel during the month of August, then book flights to San Francisco Bay Area from London, Ontario during May instead. Flights to San Francisco Bay Area in May, while not as cheap as those in August, still average around C$ 370.

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

The cheapest day to depart on your flight to San Francisco Bay Area is on a Saturday when prices can be found for as low as C$ 501. This is often the case because there is less demand to fly during this day of the week. Flights from London, Ontario to San Francisco Bay Area on a Tuesday will generally be more expensive and average around C$ 666. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to San Francisco Bay Area is at noon. Flights from London, Ontario to San Francisco Bay Area during this time can be as low as C$ 509. In the afternoon is when there is more demand to fly to San Francisco Bay Area, so prices are often more expensive at around C$ 630 per ticket.

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

Direct flights

None
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

  • 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?

  • 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?

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
WestJetPriceFrom C$ 242Free CancellationRating
7.2
3,091 reviews
Search WestJet flights
Air CanadaPriceFrom C$ 305Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 349Free CancellationRating
7.4
8,929 reviews
Search United Airlines 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.

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