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Cheap flights from London, Ontario to San Francisco from $195

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 4/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from London, Ontario to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
8:10 pm - 12:10 pm
YXU
-
SFO
19h 00m
1 stop
WestJet Logo
6:00 am - 4:45 pm
SFO
-
YXU
7h 45m
1 stop
$342WestJet
Wed, Apr 15 - Mon, May 4
Air Canada Logo
5:10 am - 10:55 am
YXU
-
SFO
8h 45m
1 stop
Air Canada Logo
7:30 pm - 11:43 am
SFO
-
YXU
13h 13m
2 stops
$344Air Canada
Tue, Apr 14 - Mon, May 4
WestJet Logo
6:10 am - 12:00 pm
YXU
-
SFO
8h 50m
1 stop
WestJet Logo
6:00 am - 4:45 pm
SFO
-
YXU
7h 45m
1 stop
$345WestJet
Fri, May 29 - Sat, May 30
Air Canada Logo
5:10 am - 10:55 am
YXU
-
SFO
8h 45m
1 stop
Air Canada Logo
8:05 am - 9:38 pm
SFO
-
YXU
10h 33m
2 stops
$347Air Canada
Tue, Apr 14 - Tue, May 5
Air Canada Logo
5:10 am - 12:30 pm
YXU
-
SFO
10h 20m
2 stops
Air Canada Logo
7:30 pm - 11:43 am
SFO
-
YXU
13h 13m
2 stops
$349Air Canada
Tue, Apr 14 - Mon, May 4
Air Canada Logo
5:10 am - 12:30 pm
YXU
-
SFO
10h 20m
2 stops
Air Canada Logo
8:05 am - 9:38 pm
SFO
-
YXU
10h 33m
2 stops
$353Air Canada
Tue, Apr 14 - Tue, May 5
Air Canada Logo
5:10 am - 10:55 am
YXU
-
SFO
8h 45m
1 stop
Air Canada Logo
1:35 pm - 8:53 am
SFO
-
YXU
16h 18m
1 stop
$363Air Canada
Tue, Apr 14 - Tue, May 5
WestJet Logo
8:10 pm - 12:10 pm
YXU
-
SFO
19h 00m
1 stop
WestJet Logo
1:00 pm - 5:20 am
SFO
-
YXU
13h 20m
1 stop
$365WestJet
Wed, Apr 15 - Wed, May 6
WestJet Logo
6:10 am - 12:00 pm
YXU
-
SFO
8h 50m
1 stop
WestJet Logo
6:00 am - 4:45 pm
SFO
-
YXU
7h 45m
1 stop
$368WestJet
Fri, May 29 - Sat, May 30
Air Canada Logo
5:10 am - 12:30 pm
YXU
-
SFO
10h 20m
2 stops
Air Canada Logo
2:30 pm - 8:44 am
SFO
-
YXU
15h 14m
1 stop
$369Air Canada
Tue, Apr 14 - Wed, Apr 29

WestJet flights from London, Ontario to San Francisco

Our best WestJet deals on London, Ontario to San Francisco flight tickets
WestJet
Apr 15
YXU8:10 pmLondon
19h 00m
1 stop
SFO12:10 pmSan Francisco
May 4
SFO6:00 amSan Francisco
7h 45m
1 stop
YXU4:45 pmLondon
$342
WestJet
May 29
YXU6:10 amLondon
8h 50m
1 stop
SFO12:00 pmSan Francisco
May 30
SFO6:00 amSan Francisco
7h 45m
1 stop
YXU4:45 pmLondon
$345
WestJet
Apr 15
YXU8:10 pmLondon
19h 00m
1 stop
SFO12:10 pmSan Francisco
May 6
SFO1:00 pmSan Francisco
13h 20m
1 stop
YXU5:20 amLondon
$365

Air Canada flights from London, Ontario to San Francisco

Our best Air Canada deals on London, Ontario to San Francisco flight tickets
Air Canada
Apr 14
YXU5:10 amLondon
8h 45m
1 stop
SFO10:55 amSan Francisco
May 4
SFO7:30 pmSan Francisco
13h 13m
2 stops
YXU11:43 amLondon
$344
Air Canada
Apr 14
YXU5:10 amLondon
8h 45m
1 stop
SFO10:55 amSan Francisco
May 5
SFO8:05 amSan Francisco
10h 33m
2 stops
YXU9:38 pmLondon
$347
Air Canada
Apr 14
YXU5:10 amLondon
10h 20m
2 stops
SFO12:30 pmSan Francisco
May 4
SFO7:30 pmSan Francisco
13h 13m
2 stops
YXU11:43 amLondon
$349

momondo Fare Finder

 
Customize your flight search to find flights from London, Ontario to San Francisco 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 832,500 searches. Data last updated March 19, 2026.
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

Cheapest round-trip

LondonSan Francisco

YXU - SFO

YXUSFO

London

Wed 4/15

8:10 pm-12:10 pm

1 stop19h 00m

San Francisco

Mon 5/4

6:00 am-4:45 pm

1 stop7h 45m

$342

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 4/14

5:10 am-10:55 am

1 stop8h 45m

San Francisco

Mon 5/4

7:30 pm-11:43 am

2 stops13h 13m

$344
Quickest round-trip

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 5/29

6:10 am-12:00 pm

1 stop8h 50m

San Francisco

Sat 5/30

6:00 am-4:45 pm

1 stop7h 45m

$345

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 4/14

5:10 am-10:55 am

1 stop8h 45m

San Francisco

Tue 5/5

8:05 am-9:38 pm

2 stops10h 33m

$347

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 4/14

5:10 am-12:30 pm

2 stops10h 20m

San Francisco

Mon 5/4

7:30 pm-11:43 am

2 stops13h 13m

$349

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 4/14

5:10 am-12:30 pm

2 stops10h 20m

San Francisco

Tue 5/5

8:05 am-9:38 pm

2 stops10h 33m

$353

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 4/14

5:10 am-10:55 am

1 stop8h 45m

San Francisco

Tue 5/5

1:35 pm-8:53 am

1 stop16h 18m

$363

LondonSan Francisco

YXU - SFO

YXUSFO

London

Wed 4/15

8:10 pm-12:10 pm

1 stop19h 00m

San Francisco

Wed 5/6

1:00 pm-5:20 am

1 stop13h 20m

$365

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 5/29

6:10 am-12:00 pm

1 stop8h 50m

San Francisco

Sat 5/30

6:00 am-4:45 pm

1 stop7h 45m

$368

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 4/14

5:10 am-12:30 pm

2 stops10h 20m

San Francisco

Wed 4/29

2:30 pm-8:44 am

1 stop15h 14m

$369

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

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

You could potentially save up to 39% 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

Fastest flight time

8h 44m

Direct flights

None
The fastest flight from London, Ontario to San Francisco takes 8h 44m
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 44m 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 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.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Bodega Bay
Walnut Creek
Roseville
Hayward
Berkeley
Santa Clara
Big Sur
Fremont
Calistoga
Vallejo
Salinas
Half Moon Bay
Daly City
Milpitas
Pacific Grove
South San Francisco

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.

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