What is the cheapest airline that flies from San Francisco to Ontario?

Flair Airlines and WestJet are the most popular carriers operating from San Francisco to Ontario

How many flights depart from San Francisco to Region of Ontario on average per day?

As of August 2025, 29 flights take off from San Francisco and land in Region of Ontario each day. The most common flight departure time for this route is 8:00a.m., with 51% of daily flights taking off in the afternoon.

How many flights depart from San Francisco to Region of Ontario on average per week?

The number of flights available between San Francisco and Region of Ontario is 205 per week as of August 2025. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.

Which airlines fly to Region of Ontario?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Region of Ontario from San Francisco according to our data. Air Canada is the first choice among our users, with 45% of people opting to fly with this airline when travelling to Region of Ontario. Keep in mind that there are 5 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

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?

As of August 2025, there are 5 operators available to choose from 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.

C$ 123 Cheap Flights from San Francisco to Ontario in 2025

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Find the cheapest flights from San Francisco to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

10:15 a.m. - 6:47 a.m.SFO-YYZ

17h 32m2 stops

10:40 a.m. - 11:58 p.m.YYZ-SFO

16h 18m1 stop

C$ 314

Find Deal

qua, 8 out - ter, 14 out

10:15 a.m. - 12:40 a.m.SFO-YHM

11h 25m2 stops

6:00 a.m. - 11:54 a.m.YHM-SFO

8h 54m1 stop

C$ 324

Find Deal

sáb, 11 out - ter, 14 out

10:15 a.m. - 6:47 a.m.SFO-YYZ

17h 32m2 stops

10:40 a.m. - 6:06 p.m.YYZ-SFO

10h 26m1 stop

C$ 332

Find Deal

dom, 12 out - ter, 14 out

12:50 p.m. - 12:40 a.m.SFO-YHM

8h 50m1 stop

6:00 a.m. - 11:54 a.m.YHM-SFO

8h 54m1 stop

C$ 369WestJet

Find Deal

sáb, 11 out - ter, 14 out

7:30 a.m. - 12:31 a.m.SFO-YYZ

14h 01m2 stops

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

12h 24m2 stops

C$ 371WestJet

Find Deal

sáb, 6 set - sex, 19 set

8:20 a.m. - 7:46 p.m.SFO-YTZ

8h 26m1 stop

12:25 p.m. - 7:57 p.m.YTZ-SFO

10h 32m1 stop

C$ 554Air Canada

Find Deal

ter, 26 ago - qui, 28 ago

8:20 a.m. - 9:31 p.m.SFO-YTZ

10h 11m1 stop

12:25 p.m. - 7:57 p.m.YTZ-SFO

10h 32m1 stop

C$ 559Air Canada

Find Deal

ter, 26 ago - qui, 28 ago

10:44 p.m. - 9:58 a.m.SFO-YOW

8h 14m1 stop

9:50 a.m. - 5:49 p.m.YOW-SFO

10h 59m1 stop

C$ 559United Airlines

Find Deal

qua, 27 ago - dom, 31 ago

10:45 p.m. - 9:58 a.m.SFO-YOW

8h 13m1 stop

10:37 a.m. - 3:30 p.m.YOW-SFO

7h 53m1 stop

C$ 562United Airlines

Find Deal

seg, 13 out - sáb, 18 out

1:25 p.m. - 8:50 p.m.SFO-YQG

28h 25m1 stop

8:50 a.m. - 12:23 p.m.YQG-SFO

30h 33m1 stop

C$ 1,006Porter Airlines

Find Deal

sex, 19 set - dom, 21 set

WestJet flights from San Francisco to Region of Ontario

Our best WestJet deals on San Francisco to Region of Ontario flight tickets

WestJet

11 Oct

SFO12:50 p.m.San Francisco

8h 50m

1 stop

YHM12:40 a.m.Hamilton

14 Oct

YHM6:00 a.m.Hamilton

8h 54m

1 stop

SFO11:54 a.m.San Francisco

C$ 369

Find similar

WestJet

6 Sep

SFO7:30 a.m.San Francisco

14h 01m

2 stops

YYZ12:31 a.m.Toronto Pearson Intl

19 Sep

YYZ12:00 p.m.Toronto Pearson Intl

12h 24m

2 stops

SFO9:24 p.m.San Francisco

C$ 371

Find similar

WestJet

10 Oct

SFO12:50 p.m.San Francisco

8h 50m

1 stop

YHM12:40 a.m.Hamilton

14 Oct

YHM6:00 a.m.Hamilton

8h 54m

1 stop

SFO11:54 a.m.San Francisco

C$ 375

Find similar

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

26 Aug

SFO8:20 a.m.San Francisco

8h 26m

1 stop

YTZ7:46 p.m.Toronto Island

28 Aug

YTZ12:25 p.m.Toronto Island

10h 32m

1 stop

SFO7:57 p.m.San Francisco

C$ 554

Find similar

Air Canada

26 Aug

SFO8:20 a.m.San Francisco

10h 11m

1 stop

YTZ9:31 p.m.Toronto Island

28 Aug

YTZ12:25 p.m.Toronto Island

10h 32m

1 stop

SFO7:57 p.m.San Francisco

C$ 559

Find similar

Air Canada

5 Sep

SFO8:30 a.m.San Francisco

10h 04m

1 stop

YTZ9:34 p.m.Toronto Island

8 Sep

YTZ12:25 p.m.Toronto Island

10h 26m

1 stop

SFO7:51 p.m.San Francisco

C$ 562

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

qua 8/10

10:15 a.m.-6:47 a.m.

2 stops17h 32m

Toronto Pearson Intl

ter 14/10

10:40 a.m.-11:58 p.m.

1 stop16h 18m

C$ 314

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

sáb 11/10

10:15 a.m.-12:40 a.m.

2 stops11h 25m

Hamilton

ter 14/10

6:00 a.m.-11:54 a.m.

1 stop8h 54m

C$ 324

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

dom 12/10

10:15 a.m.-6:47 a.m.

2 stops17h 32m

Toronto Pearson Intl

ter 14/10

10:40 a.m.-6:06 p.m.

1 stop10h 26m

C$ 332

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

sáb 11/10

12:50 p.m.-12:40 a.m.

1 stop8h 50m

Hamilton

ter 14/10

6:00 a.m.-11:54 a.m.

1 stop8h 54m

C$ 369

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

sáb 6/9

7:30 a.m.-12:31 a.m.

2 stops14h 01m

Toronto Pearson Intl

sex 19/9

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

2 stops12h 24m

C$ 371

San FranciscoToronto

SFO - YTZ

SFOYTZ

San Francisco

ter 26/8

8:20 a.m.-7:46 p.m.

1 stop8h 26m

Toronto Island

qui 28/8

12:25 p.m.-7:57 p.m.

1 stop10h 32m

C$ 554

San FranciscoToronto

SFO - YTZ

SFOYTZ

San Francisco

ter 26/8

8:20 a.m.-9:31 p.m.

1 stop10h 11m

Toronto Island

qui 28/8

12:25 p.m.-7:57 p.m.

1 stop10h 32m

C$ 559

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

qua 27/8

10:44 p.m.-9:58 a.m.

1 stop8h 14m

Ottawa

dom 31/8

9:50 a.m.-5:49 p.m.

1 stop10h 59m

C$ 559

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

seg 13/10

10:45 p.m.-9:58 a.m.

1 stop8h 13m

Ottawa

sáb 18/10

10:37 a.m.-3:30 p.m.

1 stop7h 53m

C$ 562

San FranciscoWindsor

SFO - YQG

SFOYQG

San Francisco

sex 19/9

1:25 p.m.-8:50 p.m.

1 stop28h 25m

Windsor

dom 21/9

8:50 a.m.-12:23 p.m.

1 stop30h 33m

C$ 1,006

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 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

Prices

Airlines

Other information

What is the cheapest month to fly to Region of Ontario?

In general, April 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$ 486. If you are unable to visit Region of Ontario during the month of April, then departing from San Francisco during the month February is also very affordable. Most momondo users find prices during this month for around C$ 489.

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 Friday. Travellers who choose to depart for Region of Ontario on a Friday will often find tickets for as low as C$ 514. The most expensive day to fly to Region of Ontario is Sunday, with ticket prices averaging around C$ 603.

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 afternoon. Flights from San Francisco to Region of Ontario during this time can be as low as C$ 484. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 617 on average. Flights to Region of Ontario from San Francisco in the morning 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$ 605 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$ 493 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?

No. A direct flight is the cheapest option for a flight between San Francisco to Region of Ontario.

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$ 123
Fastest flight time	5h 24m
Direct flights	Every day
Airports in Region of Ontario	7 airports

The best one-way flight to Region of Ontario from San Francisco in the past 72 hours is C$ 123. The best round-trip flight deal from San Francisco to Region of Ontario found on momondo in the last 72 hours is C$ 314.

The fastest flight from San Francisco to Region of Ontario takes 5h 24m

Direct flights go from San Francisco to Region of Ontario every day.

There are 7 airports near Region of Ontario: Ottawa (YOW), Montreal Pierre Elliott Trudeau Intl (YUL), Toronto Region of Waterloo Intl (YKF), Toronto Pearson Intl (YYZ), Toronto Island (YTZ), Windsor (YQG), Hamilton (YHM)

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?
As of August 2025, there are 5 operators available to choose from 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?
Based on momondo bookings for flights between San Francisco and Region of Ontario, the leading plane model is Embraer 195 E2, making up 29.42% of the total bookings. Other popular models include Boeing 737-800 with 20.68%, Boeing 737 MAX 8 with 19.29%, and Airbus A220-300 with 14.14%.

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
Air Canada	PriceFrom C$ 260	Free Cancellation	Rating 7.1 9,890 reviews	Search Air Canada flights
Air Transat	PriceFrom C$ 299	Free Cancellation	Rating 7.7 425 reviews	Search Air Transat flights
United Airlines	PriceFrom C$ 314	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 319	Free Cancellation	Rating 7.2 2,997 reviews	Search WestJet flights
Porter Airlines	PriceFrom C$ 398	Free Cancellation	Rating 8.0 322 reviews	Search Porter 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

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Get notified when prices go down

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dom 10/8

dom 17/8

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Find better results for your trip to Ontario

Popular Cities in Ontario

Flights to Torontofrom C$ 103

Flights to Vancouverfrom C$ 70

Flights to Montrealfrom C$ 201

Flights to Calgaryfrom C$ 73

Flights to Ottawafrom C$ 197

Flights to Winnipegfrom C$ 103

Flights to Halifaxfrom C$ 117

Flights to Kelownafrom C$ 92

Flights to Saskatoonfrom C$ 101

Flights to Reginafrom C$ 117

Flights to St. John'sfrom C$ 244

Flights to Québec Cityfrom C$ 284

Cheap flights from San Francisco to Ontario from C$ 123

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 19/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from San Francisco to Ontario

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

WestJet flights from San Francisco to Region of Ontario

Our best WestJet deals on San Francisco to Region of Ontario flight tickets

Air Canada flights from San Francisco to Region of Ontario

Our best Air Canada deals on San Francisco to Region of Ontario flight tickets

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

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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?

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

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

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?

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?

No. A direct flight is the cheapest option for a flight between San Francisco to Region of Ontario.

What is the cheapest airline that flies from San Francisco to Ontario?

Flair Airlines and WestJet are the most popular carriers operating from San Francisco to Ontario

Which airlines fly to Region of Ontario?

How many flights depart from San Francisco to Region of Ontario on average per day?

As of August 2025, 29 flights take off from San Francisco and land in Region of Ontario each day. The most common flight departure time for this route is 8:00a.m., with 51% of daily flights taking off in the afternoon.

How many flights depart from San Francisco to Region of Ontario on average per week?

The number of flights available between San Francisco and Region of Ontario is 205 per week as of August 2025. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.

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

Fastest flight time

Direct flights

Airports in Region of Ontario

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

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?

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

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

Why use momondo?

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

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

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

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

An easier way to manage your Region of Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ontario

Popular Cities in Ontario

Popular flights according to clicks in the last 7 days on momondo