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

WestJet, Alaska Airlines, and United Airlines are the most popular carriers operating from San Francisco Bay Area to Ontario

Which airlines fly to Region of Ontario?

Porter Airlines, Air Canada and Air Transat are the top three most popular airlines that fly to Region of Ontario from San Francisco Bay Area according to our data. Porter Airlines is the first choice among our users, with 42% 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 Bay Area to Ontario?

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

How many operators does momondo search for flights from San Francisco Bay Area to Ontario?

As of September 2025, there are 5 operators available to choose from for flights from San Francisco Bay Area to Ontario.

How old do you have to be to fly from San Francisco Bay Area to Ontario?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Bay Area to Ontario.

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

The required travel and health documents for your Ontario trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

C$ 107 Cheap Flights from San Francisco Bay Area to Ontario in 2025

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

As of September 2025, there are 226 flights per week flying from San Francisco Bay Area to Region of Ontario. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.

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

The number of flights available between San Francisco Bay Area and Region of Ontario is 32 per day as of September 2025. The most frequent departure time is 8:00a.m., with 47% of daily flights leaving at noon.

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Find the cheapest flights from San Francisco Bay Area to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

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$ 349WestJet

Find Deal

Sat, 11 Oct - Sat, 18 Oct

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$ 356WestJet

Find Deal

Fri, 3 Oct - Thu, 23 Oct

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

14h 01m2 stops

9:45 a.m. - 12:23 p.m.YYZ-SFO

5h 38mdirect

C$ 364

Find Deal

Sun, 28 Sep - Wed, 1 Oct

1:00 p.m. - 12:26 a.m.SFO-YYZ

8h 26m1 stop

9:45 a.m. - 12:40 p.m.YYZ-SFO

5h 55mdirect

C$ 365

Find Deal

Fri, 31 Oct - Mon, 3 Nov

7:30 a.m. - 9:35 p.m.SFO-YTZ

11h 05m2 stops

10:25 a.m. - 9:22 p.m.YTZ-SFO

13h 57m2 stops

C$ 415Air Canada

Find Deal

Mon, 27 Oct - Mon, 3 Nov

8:25 a.m. - 7:55 p.m.SFO-YTZ

8h 30m1 stop

10:25 a.m. - 9:22 p.m.YTZ-SFO

13h 57m2 stops

C$ 426Air Canada

Find Deal

Mon, 27 Oct - Mon, 3 Nov

1:40 p.m. - 9:37 p.m.SFO-YYZ

4h 57mdirect

9:45 a.m. - 12:40 p.m.YYZ-SFO

5h 55mdirect

C$ 430Porter Airlines

Find Deal

Thu, 13 Nov - Sat, 15 Nov

7:00 a.m. - 5:12 p.m.SFO-YOW

7h 12m1 stop

2:05 p.m. - 9:34 p.m.YOW-SFO

10h 29m1 stop

C$ 464United Airlines

Find Deal

Wed, 29 Oct - Wed, 5 Nov

12:43 a.m. - 2:30 p.m.SFO-YOW

10h 47m2 stops

6:00 a.m. - 1:30 p.m.YOW-SFO

10h 30m1 stop

C$ 472United Airlines

Find Deal

Mon, 2 Mar - Fri, 6 Mar

1:40 p.m. - 12:35 a.m.SFO-YUL

7h 55m1 stop

6:45 a.m. - 12:40 p.m.YUL-SFO

8h 55m1 stop

C$ 520Porter Airlines

Find Deal

Fri, 7 Nov - Wed, 12 Nov

Porter Airlines flights from San Francisco Bay Area to Region of Ontario

Our best Porter Airlines deals on San Francisco Bay Area to Region of Ontario flight tickets

Porter Airlines

13 Nov

SFO1:40 p.m.San Francisco

4h 57m

YYZ9:37 p.m.Toronto Pearson Intl

15 Nov

YYZ9:45 a.m.Toronto Pearson Intl

5h 55m

SFO12:40 p.m.San Francisco

C$ 430

Find similar

Porter Airlines

7 Nov

SFO1:40 p.m.San Francisco

7h 55m

1 stop

YUL12:35 a.m.Montreal Pierre Elliott Trudeau Intl

12 Nov

YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl

8h 55m

1 stop

SFO12:40 p.m.San Francisco

C$ 520

Find similar

Porter Airlines

6 Oct

SFO1:25 p.m.San Francisco

8h 12m

1 stop

YUL12:37 a.m.Montreal Pierre Elliott Trudeau Intl

27 Oct

YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl

8h 55m

1 stop

SFO12:40 p.m.San Francisco

C$ 526

Find similar

Alaska Airlines flights from San Francisco Bay Area to Region of Ontario

Our best Alaska Airlines deals on San Francisco Bay Area to Region of Ontario flight tickets

Alaska Airlines

21 Oct

OAK6:40 a.m.Oakland

29h 20m

1 stop

YYZ3:00 p.m.Toronto Pearson Intl

4 Nov

YYZ4:45 p.m.Toronto Pearson Intl

24h 10m

1 stop

OAK1:55 p.m.Oakland

C$ 454

Find similar

Alaska Airlines

20 Oct

OAK6:40 a.m.Oakland

29h 20m

1 stop

YYZ3:00 p.m.Toronto Pearson Intl

4 Nov

YYZ4:45 p.m.Toronto Pearson Intl

20h 40m

1 stop

OAK10:25 a.m.Oakland

C$ 462

Find similar

Alaska Airlines

22 Oct

OAK6:40 a.m.Oakland

29h 20m

1 stop

YYZ3:00 p.m.Toronto Pearson Intl

4 Nov

YYZ4:45 p.m.Toronto Pearson Intl

10h 14m

1 stop

OAK11:59 p.m.Oakland

C$ 469

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Sat 11/10

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

1 stop8h 50m

Hamilton

Sat 18/10

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

1 stop8h 54m

C$ 349

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Fri 3/10

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

1 stop8h 50m

Hamilton

Thu 23/10

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

1 stop8h 54m

C$ 356

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Sun 28/9

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

2 stops14h 01m

Toronto Pearson Intl

Wed 1/10

9:45 a.m.-12:23 p.m.

Nonstop5h 38m

C$ 364

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Fri 31/10

1:00 p.m.-12:26 a.m.

1 stop8h 26m

Toronto Pearson Intl

Mon 3/11

9:45 a.m.-12:40 p.m.

Nonstop5h 55m

C$ 365

San FranciscoToronto

SFO - YTZ

SFOYTZ

San Francisco

Mon 27/10

7:30 a.m.-9:35 p.m.

2 stops11h 05m

Toronto Island

Mon 3/11

10:25 a.m.-9:22 p.m.

2 stops13h 57m

C$ 415

San FranciscoToronto

SFO - YTZ

SFOYTZ

San Francisco

Mon 27/10

8:25 a.m.-7:55 p.m.

1 stop8h 30m

Toronto Island

Mon 3/11

10:25 a.m.-9:22 p.m.

2 stops13h 57m

C$ 426

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Thu 13/11

1:40 p.m.-9:37 p.m.

Nonstop4h 57m

Toronto Pearson Intl

Sat 15/11

9:45 a.m.-12:40 p.m.

Nonstop5h 55m

C$ 430

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 29/10

7:00 a.m.-5:12 p.m.

1 stop7h 12m

Ottawa

Wed 5/11

2:05 p.m.-9:34 p.m.

1 stop10h 29m

C$ 464

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Mon 2/3

12:43 a.m.-2:30 p.m.

2 stops10h 47m

Ottawa

Fri 6/3

6:00 a.m.-1:30 p.m.

1 stop10h 30m

C$ 472

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Fri 7/11

1:40 p.m.-12:35 a.m.

1 stop7h 55m

Montreal Pierre Elliott Trudeau Intl

Wed 12/11

6:45 a.m.-12:40 p.m.

1 stop8h 55m

C$ 520

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 Bay Area 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 Bay Area to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 482. If you are unable to visit Region of Ontario during the month of April, then departing from San Francisco Bay Area during the month March is also very affordable. Most momondo users find prices during this month for around C$ 497.

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

The cheapest day to depart from San Francisco Bay Area 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$ 526. The most expensive day to fly to Region of Ontario is Sunday, with ticket prices averaging around C$ 633.

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 Bay Area to Region of Ontario during this time can be as low as C$ 471. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 611 on average. Flights to Region of Ontario from San Francisco Bay Area in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest San Francisco Bay Area to Ontario flight route?

Fly from San Francisco to Toronto Pearson Intl for the best San Francisco Bay Area - 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 Bay Area when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 603 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 Bay Area for as low as C$ 476 on momondo.

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

There are 3 cabin classes available to choose from on San Francisco Bay Area 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 Bay Area to Region of Ontario flights?

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

Cheap San Francisco Bay Area to Region of Ontario flight deals and tips

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

Fastest flight time	4h 55m
Direct flights	Every day
Airports in Region of Ontario	1 airport

The fastest flight from San Francisco Bay Area to Region of Ontario takes 4h 55m

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

There is 1 airport near Region of Ontario: Toronto Pearson Intl (YYZ)

Search flight deals

When did momondo last update prices for flights from San Francisco Bay Area to Ontario?
Prices for flights from San Francisco Bay Area to Ontario are refreshed on a daily basis.
How many operators does momondo search for flights from San Francisco Bay Area to Ontario?
As of September 2025, there are 5 operators available to choose from for flights from San Francisco Bay Area to Ontario.
How old do you have to be to fly from San Francisco Bay Area to Ontario?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Bay Area to Ontario.
What documentation or ID do you need to fly to Ontario?
The required travel and health documents for your Ontario trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from San Francisco Bay Area to Region of Ontario?
Based on momondo bookings for flights between San Francisco Bay Area and Region of Ontario, the leading plane model is Embraer 195 E2, making up 35.63% of the total bookings. Other popular models include Boeing 737 MAX 8 with 14.55%, De Havilland (Bombardier) DHC-8-400 Dash 8Q with 7.34%, and Airbus A321-100/200 with 6.16%.

Best airlines flying from San Francisco Bay Area to Region of Ontario

Compare and see reviews for airlines that fly from San Francisco Bay Area to Region of Ontario with momondo

Airline	Rating	Free Cancellation	Price
Porter Airlines	PriceFrom C$ 197	Free Cancellation	Rating 7.9 363 reviews	Search Porter Airlines flights
Air Canada	PriceFrom C$ 257	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 260	Free Cancellation	Rating 7.4 8,931 reviews	Search United Airlines flights
Air Transat	PriceFrom C$ 300	Free Cancellation	Rating 7.7 438 reviews	Search Air Transat flights
WestJet	PriceFrom C$ 321	Free Cancellation	Rating 7.2 3,091 reviews	Search WestJet flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Francisco Bay Area to Ontario for you.

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

Yes. All flights to Ontario from San Francisco Bay Area on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Ontario from San Francisco Bay Area. 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 Bay Area to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from San Francisco Bay Area 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.

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Popular Cities in Ontario

Flights to Torontofrom C$ 101

Flights to Vancouverfrom C$ 57

Flights to Montrealfrom C$ 147

Flights to Calgaryfrom C$ 58

Flights to Ottawafrom C$ 162

Flights to Winnipegfrom C$ 91

Flights to Halifaxfrom C$ 112

Flights to Kelownafrom C$ 78

Flights to Saskatoonfrom C$ 122

Flights to Reginafrom C$ 122

Flights to St. John'sfrom C$ 158

Flights to Québec Cityfrom C$ 295

Cheap flights from San Francisco Bay Area to Ontario from C$ 107

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Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

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Find the cheapest flights from San Francisco Bay Area to Ontario

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Porter Airlines flights from San Francisco Bay Area to Region of Ontario

Our best Porter Airlines deals on San Francisco Bay Area to Region of Ontario flight tickets

Alaska Airlines flights from San Francisco Bay Area to Region of Ontario

Our best Alaska Airlines deals on San Francisco Bay Area to Region of Ontario flight tickets

momondo Fare Finder

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

See travel insights to Ontario from

How to get the cheapest flight ticket from San Francisco Bay Area 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 Bay Area to Ontario flight route?

Fly from San Francisco to Toronto Pearson Intl for the best San Francisco Bay Area - 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 Bay Area to Ontario flights?

There are 3 cabin classes available to choose from on San Francisco Bay Area 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 Bay Area to Region of Ontario flights?

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

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

WestJet, Alaska Airlines, and United Airlines are the most popular carriers operating from San Francisco Bay Area to Ontario

Which airlines fly to Region of Ontario?

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

The number of flights available between San Francisco Bay Area and Region of Ontario is 32 per day as of September 2025. The most frequent departure time is 8:00a.m., with 47% of daily flights leaving at noon.

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

As of September 2025, there are 226 flights per week flying from San Francisco Bay Area to Region of Ontario. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.

Cheap San Francisco Bay Area to Region of Ontario flight deals and tips

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

Fastest flight time

Direct flights

Airports in Region of Ontario

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

How many operators does momondo search for flights from San Francisco Bay Area to Ontario?

How old do you have to be to fly from San Francisco Bay Area to Ontario?

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

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

Best airlines flying from San Francisco Bay Area to Region of Ontario

Compare and see reviews for airlines that fly from San Francisco Bay Area to Region of Ontario with momondo

Why use momondo?

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

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

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

I’m not ready to book a flight from San Francisco Bay Area 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