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Cheap flights from San Francisco to Ontario from C$ 209

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 15/4. 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 San Francisco to Ontario

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:16 p.m. - 8:09 p.m.
SFO
-
YYZ
20h 53m
1 stop
Multiple Airlines Logo
12:40 p.m. - 9:55 p.m.
YYZ
-
SFO
12h 15m
2 stops
C$ 458Multiple Airlines
Mon, 4 May - Sat, 16 May
Multiple Airlines Logo
8:16 p.m. - 8:09 p.m.
SFO
-
YYZ
20h 53m
1 stop
Multiple Airlines Logo
6:15 a.m. - 12:00 p.m.
YYZ
-
SFO
8h 45m
1 stop
C$ 461Multiple Airlines
Mon, 4 May - Wed, 13 May
Multiple Airlines Logo
6:13 p.m. - 8:09 p.m.
SFO
-
YYZ
22h 56m
1 stop
Multiple Airlines Logo
6:15 a.m. - 12:00 p.m.
YYZ
-
SFO
8h 45m
1 stop
C$ 462Multiple Airlines
Mon, 4 May - Mon, 11 May
Multiple Airlines Logo
7:40 p.m. - 7:36 p.m.
SFO
-
YYZ
20h 56m
2 stops
Multiple Airlines Logo
8:00 p.m. - 1:52 p.m.
YYZ
-
SFO
20h 52m
1 stop
C$ 472Multiple Airlines
Tue, 14 Apr - Mon, 20 Apr
WestJet Logo
6:00 a.m. - 4:45 p.m.
SFO
-
YXU
7h 45m
1 stop
WestJet Logo
6:10 a.m. - 12:00 p.m.
YXU
-
SFO
8h 50m
1 stop
C$ 519WestJet
Mon, 4 May - Mon, 11 May
Air Canada Logo
8:05 a.m. - 9:32 p.m.
SFO
-
YTZ
10h 27m
1 stop
Air Canada Logo
12:30 p.m. - 9:02 p.m.
YTZ
-
SFO
11h 32m
1 stop
C$ 526Air Canada
Wed, 6 May - Wed, 13 May
Porter Airlines Logo
1:20 p.m. - 12:37 a.m.
SFO
-
YUL
8h 17m
1 stop
Porter Airlines Logo
6:45 a.m. - 12:20 p.m.
YUL
-
SFO
8h 35m
1 stop
C$ 527Porter Airlines
Tue, 5 May - Tue, 12 May
Porter Airlines Logo
1:45 p.m. - 12:35 a.m.
SFO
-
YUL
7h 50m
1 stop
Porter Airlines Logo
6:45 a.m. - 12:45 p.m.
YUL
-
SFO
9h 00m
1 stop
C$ 538Porter Airlines
Mon, 20 Apr - Tue, 28 Apr
WestJet Logo
6:00 a.m. - 5:15 p.m.
SFO
-
YOW
8h 15m
1 stop
WestJet Logo
12:25 p.m. - 9:55 p.m.
YOW
-
SFO
12h 30m
2 stops
C$ 545WestJet
Fri, 8 May - Sun, 10 May
Air Canada Logo
11:40 a.m. - 9:40 p.m.
SFO
-
YXU
7h 00m
1 stop
Air Canada Logo
9:30 a.m. - 3:27 p.m.
YXU
-
SFO
8h 57m
1 stop
C$ 561Air Canada
Sat, 11 Jul - Tue, 14 Jul

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
9 Apr
SFO1:45 p.m.San Francisco
4h 57m
YYZ9:42 p.m.Toronto Pearson Intl
15 Apr
YYZ9:50 a.m.Toronto Pearson Intl
5h 55m
SFO12:45 p.m.San Francisco
C$ 488
Porter Airlines
3 Apr
SFO1:45 p.m.San Francisco
4h 57m
YYZ9:42 p.m.Toronto Pearson Intl
9 Apr
YYZ9:50 a.m.Toronto Pearson Intl
5h 55m
SFO12:45 p.m.San Francisco
C$ 495
Porter Airlines
16 Apr
SFO1:45 p.m.San Francisco
4h 57m
YYZ9:42 p.m.Toronto Pearson Intl
23 Apr
YYZ9:50 a.m.Toronto Pearson Intl
5h 55m
SFO12:45 p.m.San Francisco
C$ 501

Air Canada flights from San Francisco to Region of Ontario

Our best Air Canada deals on San Francisco to Region of Ontario flight tickets
Air Canada
2 Apr
SFO11:55 a.m.San Francisco
5h 02m
YYZ7:57 p.m.Toronto Pearson Intl
8 Apr
YYZ10:45 a.m.Toronto Pearson Intl
5h 40m
SFO1:25 p.m.San Francisco
C$ 515
Air Canada
5 Apr
SFO8:30 a.m.San Francisco
5h 00m
YYZ4:30 p.m.Toronto Pearson Intl
14 Apr
YYZ6:55 a.m.Toronto Pearson Intl
8h 35m
1 stop
SFO12:30 p.m.San Francisco
C$ 519
Air Canada
5 Apr
SFO8:30 a.m.San Francisco
5h 00m
YYZ4:30 p.m.Toronto Pearson Intl
14 Apr
YYZ6:55 a.m.Toronto Pearson Intl
8h 35m
1 stop
SFO12:30 p.m.San Francisco
C$ 521

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 24 March 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

Cheapest round-trip

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Mon 4/5

8:16 p.m.-8:09 p.m.

1 stop20h 53m

Toronto Pearson Intl

Sat 16/5

12:40 p.m.-9:55 p.m.

2 stops12h 15m

C$ 458

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Mon 4/5

8:16 p.m.-8:09 p.m.

1 stop20h 53m

Toronto Pearson Intl

Wed 13/5

6:15 a.m.-12:00 p.m.

1 stop8h 45m

C$ 461

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Mon 4/5

6:13 p.m.-8:09 p.m.

1 stop22h 56m

Toronto Pearson Intl

Mon 11/5

6:15 a.m.-12:00 p.m.

1 stop8h 45m

C$ 462

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Tue 14/4

7:40 p.m.-7:36 p.m.

2 stops20h 56m

Toronto Pearson Intl

Mon 20/4

8:00 p.m.-1:52 p.m.

1 stop20h 52m

C$ 472

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 4/5

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

1 stop7h 45m

London

Mon 11/5

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

1 stop8h 50m

C$ 519

San FranciscoToronto

SFO - YTZ

SFOYTZ

San Francisco

Wed 6/5

8:05 a.m.-9:32 p.m.

1 stop10h 27m

Toronto Island

Wed 13/5

12:30 p.m.-9:02 p.m.

1 stop11h 32m

C$ 526

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Tue 5/5

1:20 p.m.-12:37 a.m.

1 stop8h 17m

Montreal Pierre Elliott Trudeau Intl

Tue 12/5

6:45 a.m.-12:20 p.m.

1 stop8h 35m

C$ 527

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Mon 20/4

1:45 p.m.-12:35 a.m.

1 stop7h 50m

Montreal Pierre Elliott Trudeau Intl

Tue 28/4

6:45 a.m.-12:45 p.m.

1 stop9h 00m

C$ 538

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Fri 8/5

6:00 a.m.-5:15 p.m.

1 stop8h 15m

Ottawa

Sun 10/5

12:25 p.m.-9:55 p.m.

2 stops12h 30m

C$ 545
Quickest round-trip

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 11/7

11:40 a.m.-9:40 p.m.

1 stop7h 00m

London

Tue 14/7

9:30 a.m.-3:27 p.m.

1 stop8h 57m

C$ 561

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, January 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$ 538. If you are unable to visit Region of Ontario during the month of January, then departing from San Francisco during the month June is also very affordable. Most momondo users find prices during this month for around C$ 550.

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 Thursday. Travellers who choose to depart for Region of Ontario on a Thursday will often find tickets for as low as C$ 514. The most expensive day to fly to Region of Ontario is Monday, with ticket prices averaging around C$ 641.

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 morning. Flights from San Francisco to Region of Ontario during this time can be as low as C$ 556. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 611 on average. Flights to Region of Ontario from San Francisco in the afternoon 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$ 617 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$ 524 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 2% 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$ 236

Fastest flight time

4h 57m

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$ 236. The best round-trip flight deal from San Francisco to Region of Ontario found on momondo in the last 72 hours is C$ 470.
The fastest flight from San Francisco to Region of Ontario takes 4h 57m
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$ 195Free CancellationRating
8.0
427 reviews
Search Porter Airlines flights
WestJetPriceFrom C$ 221Free CancellationRating
7.2
3,300 reviews
Search WestJet flights
Air CanadaPriceFrom C$ 266Free CancellationRating
7.1
10,836 reviews
Search Air Canada flights
Air TransatPriceFrom C$ 489Free CancellationRating
7.7
523 reviews
Search Air Transat flights
United AirlinesPriceFrom C$ 529Free CancellationRating
7.4
9,470 reviews
Search United Airlines 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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Popular flights according to clicks in the last 7 days on momondo
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