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Cheap flights from San Francisco to Ontario from C$ 133

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Ontario departing on 7/2. 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 San Francisco to Ontario

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:32 p.m. - 6:43 a.m.
SFO
-
YYZ
30h 11m1 stop
Multiple Airlines Logo
8:00 p.m. - 6:20 p.m.
YYZ
-
SFO
25h 20m1 stop
C$ 303Multiple Airlines
dom., 1 feb. - lun., 9 feb.
WestJet Logo
7:30 a.m. - 9:00 p.m.
SFO
-
YYZ
10h 30m2 stops
WestJet Logo
1:30 p.m. - 9:24 p.m.
YYZ
-
SFO
10h 54m1 stop
C$ 321WestJet
jue., 30 abr. - lun., 4 may.
Multiple Airlines Logo
9:32 p.m. - 7:36 p.m.
SFO
-
YYZ
19h 04m2 stops
Multiple Airlines Logo
8:00 p.m. - 8:47 a.m.
YYZ
-
SFO
15h 47m1 stop
C$ 325Multiple Airlines
dom., 1 feb. - lun., 9 feb.
Multiple Airlines Logo
2:08 p.m. - 7:55 p.m.
SFO
-
YYZ
26h 47m1 stop
Multiple Airlines Logo
1:30 p.m. - 9:37 a.m.
YYZ
-
SFO
23h 07m2 stops
C$ 328Multiple Airlines
mar., 20 ene. - jue., 22 ene.
Multiple Airlines Logo
10:15 a.m. - 6:40 a.m.
SFO
-
YYZ
17h 25m1 stop
Multiple Airlines Logo
12:30 p.m. - 9:37 a.m.
YYZ
-
SFO
24h 07m2 stops
C$ 330Multiple Airlines
jue., 22 ene. - jue., 29 ene.
WestJet Logo
6:05 p.m. - 6:12 a.m.
SFO
-
YYZ
9h 07m1 stop
WestJet Logo
12:00 p.m. - 9:24 p.m.
YYZ
-
SFO
12h 24m2 stops
C$ 332WestJet
vie., 15 may. - lun., 18 may.
Air Canada Logo
8:25 a.m. - 4:49 p.m.
SFO
-
YUL
5h 24mdirect
Air Canada Logo
5:50 p.m. - 9:22 p.m.
YUL
-
SFO
6h 32mdirect
C$ 375Air Canada
lun., 23 feb. - mar., 3 mar.
Air Canada Logo
8:25 a.m. - 4:49 p.m.
SFO
-
YUL
5h 24mdirect
Air Canada Logo
5:50 p.m. - 9:22 p.m.
YUL
-
SFO
6h 32mdirect
C$ 377Air Canada
lun., 23 feb. - mar., 3 mar.
United Airlines Logo
11:59 p.m. - 5:05 p.m.
SFO
-
YXU
14h 06m2 stops
United Airlines Logo
5:10 a.m. - 10:54 a.m.
YXU
-
SFO
8h 44m1 stop
C$ 646United Airlines
vie., 20 feb. - vie., 27 feb.
United Airlines Logo
9:20 p.m. - 5:05 p.m.
SFO
-
YXU
16h 45m2 stops
United Airlines Logo
5:10 a.m. - 10:58 p.m.
YXU
-
SFO
20h 48m2 stops
C$ 666United Airlines
vie., 20 feb. - vie., 27 feb.

Porter Airlines flights from San Francisco to Region of Ontario

Our best Porter Airlines deals on San Francisco to Region of Ontario flight tickets
Porter Airlines
21 May
SFO1:25 p.m.San Francisco
5h 04m
YYZ9:29 p.m.Toronto Pearson Intl
25 May
YYZ9:45 a.m.Toronto Pearson Intl
5h 38m
SFO12:23 p.m.San Francisco
C$ 386
Porter Airlines
22 Jan
SFO1:45 p.m.San Francisco
7h 50m
1 stop
YUL12:35 a.m.Montreal Pierre Elliott Trudeau Intl
25 Jan
YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl
8h 58m
1 stop
SFO12:43 p.m.San Francisco
C$ 388
Porter Airlines
21 Jan
SFO1:45 p.m.San Francisco
4h 57m
YYZ9:42 p.m.Toronto Pearson Intl
25 Jan
YYZ9:50 a.m.Toronto Pearson Intl
5h 53m
SFO12:43 p.m.San Francisco
C$ 395

WestJet flights from San Francisco to Region of Ontario

Our best WestJet deals on San Francisco to Region of Ontario flight tickets
WestJet
30 Apr
SFO7:30 a.m.San Francisco
10h 30m
2 stops
YYZ9:00 p.m.Toronto Pearson Intl
4 May
YYZ1:30 p.m.Toronto Pearson Intl
10h 54m
1 stop
SFO9:24 p.m.San Francisco
C$ 321
WestJet
15 May
SFO6:05 p.m.San Francisco
9h 07m
1 stop
YYZ6:12 a.m.Toronto Pearson Intl
18 May
YYZ12:00 p.m.Toronto Pearson Intl
12h 24m
2 stops
SFO9:24 p.m.San Francisco
C$ 332
WestJet
2 May
SFO7:30 a.m.San Francisco
8h 22m
1 stop
YYZ6:52 p.m.Toronto Pearson Intl
8 May
YYZ12:00 p.m.Toronto Pearson Intl
12h 24m
2 stops
SFO9:24 p.m.San Francisco
C$ 339

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Region of Ontario 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 8 enero 2026.
Use the filters below to find and compare flights from San Francisco to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

dom. 1/2

9:32 p.m.-6:43 a.m.

1 stop30h 11m

Toronto Pearson Intl

lun. 9/2

8:00 p.m.-6:20 p.m.

1 stop25h 20m

C$ 303

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

jue. 30/4

7:30 a.m.-9:00 p.m.

2 stops10h 30m

Toronto Pearson Intl

lun. 4/5

1:30 p.m.-9:24 p.m.

1 stop10h 54m

C$ 321

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

dom. 1/2

9:32 p.m.-7:36 p.m.

2 stops19h 04m

Toronto Pearson Intl

lun. 9/2

8:00 p.m.-8:47 a.m.

1 stop15h 47m

C$ 325

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

mar. 20/1

2:08 p.m.-7:55 p.m.

1 stop26h 47m

Toronto Pearson Intl

jue. 22/1

1:30 p.m.-9:37 a.m.

2 stops23h 07m

C$ 328

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

jue. 22/1

10:15 a.m.-6:40 a.m.

1 stop17h 25m

Toronto Pearson Intl

jue. 29/1

12:30 p.m.-9:37 a.m.

2 stops24h 07m

C$ 330

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

vie. 15/5

6:05 p.m.-6:12 a.m.

1 stop9h 07m

Toronto Pearson Intl

lun. 18/5

12:00 p.m.-9:24 p.m.

2 stops12h 24m

C$ 332

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

lun. 23/2

8:25 a.m.-4:49 p.m.

Nonstop5h 24m

Montreal Pierre Elliott Trudeau Intl

mar. 3/3

5:50 p.m.-9:22 p.m.

Nonstop6h 32m

C$ 375

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

lun. 23/2

8:25 a.m.-4:49 p.m.

Nonstop5h 24m

Montreal Pierre Elliott Trudeau Intl

mar. 3/3

5:50 p.m.-9:22 p.m.

Nonstop6h 32m

C$ 377

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

vie. 20/2

11:59 p.m.-5:05 p.m.

2 stops14h 06m

London

vie. 27/2

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

1 stop8h 44m

C$ 646

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

vie. 20/2

9:20 p.m.-5:05 p.m.

2 stops16h 45m

London

vie. 27/2

5:10 a.m.-10:58 p.m.

2 stops20h 48m

C$ 666

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 Ontario from

How to get the cheapest flight ticket from San Francisco to Region of Ontario

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 Region of Ontario?

In general, February is the cheapest month to fly from San Francisco to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 481. If you are unable to visit Region of Ontario during the month of February, then departing from San Francisco during the month March is also very affordable. Most momondo users find prices during this month for around C$ 496.

What is the cheapest day to depart on your flight to Region of Ontario?

The cheapest day to depart from San Francisco to Region of Ontario is on a Tuesday. Travellers who choose to depart for Region of Ontario on a Tuesday will often find tickets for as low as C$ 458. The most expensive day to fly to Region of Ontario is Sunday, with ticket prices averaging around C$ 613.

What is the cheapest time of day to depart on your flight to Region of Ontario?

Our most recent data shows that the best time of day to fly to Region of Ontario is in the evening. Flights from San Francisco to Region of Ontario during this time can be as low as C$ 435. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 547 on average. Flights to Region of Ontario from San Francisco at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest San Francisco to Ontario flight route?

Fly from San Francisco to Toronto Pearson Intl for the best San Francisco - Ontario flight prices

How far in advance should I book a flight to Region of Ontario?

You are more likely to see cheaper flights to Region of Ontario from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 602 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from San Francisco for as low as C$ 502 on momondo.

What cabin class options are available on San Francisco to Ontario flights?

There are 3 cabin classes available to choose from on San Francisco to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Francisco to Region of Ontario flights?

You could potentially save up to 30% on your flight if you consider stops on a San Francisco to Region of Ontario flight.

Cheap San Francisco to Region of Ontario flight deals and tips

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

Best price found

C$ 213

Fastest flight time

4h 55m

Direct flights

Every day

Airports in Region of Ontario

123 airports
The best one-way flight to Region of Ontario from San Francisco in the past 72 hours is C$ 213. The best round-trip flight deal from San Francisco to Region of Ontario found on momondo in the last 72 hours is C$ 199.
The fastest flight from San Francisco to Region of Ontario takes 4h 55m
Direct flights go from San Francisco to Region of Ontario every day.
There are 123 airports in Region of Ontario. From San Francisco there are direct flights to Toronto Pearson Intl (YYZ).
Search flight deals

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

    Prices for flights from San Francisco Airport to Ontario are refreshed on a daily basis.

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

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

    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 San Francisco Airport to Ontario.

  • What documentation or ID do you need to fly to Ontario?

    The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from San Francisco to Region of Ontario?

Best airlines flying from San Francisco to Region of Ontario

Compare and see reviews for airlines that fly from San Francisco to Region of Ontario with momondo
Airline
Rating
Free Cancellation
Price
Porter AirlinesPriceFrom C$ 196Free CancellationRating
8.0
406 reviews
Search Porter Airlines flights
Air CanadaPriceFrom C$ 254Free CancellationRating
7.1
10,603 reviews
Search Air Canada flights
WestJetPriceFrom C$ 289Free CancellationRating
7.2
3,235 reviews
Search WestJet flights
United AirlinesPriceFrom C$ 493Free CancellationRating
7.4
9,141 reviews
Search United Airlines flights
Air TransatPriceFrom C$ 505Free CancellationRating
7.7
491 reviews
Search Air Transat flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to Ontario. momondo saves you time and could save you money on your trip.

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

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

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

momondo provides multiple filters to help you find the best flight to Ontario from San Francisco. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Ontario from San Francisco 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.

An easier way to manage your Region of Ontario trip

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Find better results for your trip to Ontario

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