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

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

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

The number of flights available between Region of Ontario and San Francisco Bay Area is 197 per week as of September 2025. The most frequent departure day is Wed, with 15% of weekly flights leaving on this day.

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

The number of flights available between Region of Ontario and San Francisco Bay Area is 28 per day as of September 2025. The most frequent departure time is 10:00a.m., with 56% of daily flights leaving at noon.

How long is the flight from Region of Ontario to San Francisco Bay Area?

Flight times vary depending on what airport in Region of Ontario you fly out of and what airport in San Francisco Bay Area you fly into. For example, flying from Toronto to Copenhagen takes 10h 45m on average. On the other hand, flying from Ottawa to Copenhagen takes 12h 50m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

Which airlines fly to San Francisco Bay Area?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to San Francisco Bay Area from Region of Ontario 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 San Francisco Bay Area. Keep in mind that there are 8 different airlines that fly to San Francisco Bay Area on a routine basis, so you have a few additional options to choose from.

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

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

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

There are 8 operators available for flights from Ontario to San Francisco Bay Area as of September 2025.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to San Francisco Bay Area.

What documentation or ID do you need to fly to San Francisco Bay Area?

The travel and health documents required for your trip to San Francisco Bay Area 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 San Francisco Bay Area. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 179 Cheap Flights from Ontario to San Francisco Bay Area in 2025

1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Ontario to San Francisco Bay Area

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

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

8h 54m1 stop

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

8h 50m1 stop

C$ 305WestJet

Find Deal

Thu, 2 Oct - Mon, 6 Oct

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

8h 54m1 stop

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

8h 50m1 stop

C$ 319WestJet

Find Deal

Tue, 30 Sep - Fri, 3 Oct

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

8h 54m1 stop

10:37 p.m. - 12:40 a.m.SFO-YHM

23h 03m2 stops

C$ 353

Find Deal

Thu, 2 Oct - Mon, 6 Oct

7:05 a.m. - 9:24 p.m.YHM-SFO

17h 19m2 stops

7:30 a.m. - 11:59 p.m.SFO-YHM

13h 29m2 stops

C$ 377

Find Deal

Thu, 16 Oct - Sat, 25 Oct

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

5h 38mdirect

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

4h 57mdirect

C$ 388Porter Airlines

Find Deal

Mon, 6 Oct - Wed, 12 Nov

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

5h 55mdirect

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

4h 57mdirect

C$ 395Porter Airlines

Find Deal

Mon, 27 Oct - Mon, 3 Nov

8:05 a.m. - 10:54 a.m.YYZ-SFO

5h 49mdirect

8:25 a.m. - 7:44 p.m.SFO-YYZ

8h 19m1 stop

C$ 424Air Canada

Find Deal

Sun, 23 Nov - Sat, 29 Nov

8:05 a.m. - 10:33 a.m.YYZ-SFO

5h 28mdirect

11:40 a.m. - 11:14 p.m.SFO-YYZ

8h 34m1 stop

C$ 435Air Canada

Find Deal

Tue, 23 Sep - Sat, 27 Sep

6:30 p.m. - 9:40 p.m.YUL-SFO

6h 10mdirect

11:45 p.m. - 8:16 a.m.SFO-YUL

5h 31mdirect

C$ 457United Airlines

Find Deal

Wed, 1 Oct - Fri, 10 Oct

6:30 p.m. - 9:40 p.m.YUL-SFO

6h 10mdirect

11:45 p.m. - 8:16 a.m.SFO-YUL

5h 31mdirect

C$ 463United Airlines

Find Deal

Thu, 2 Oct - Sat, 11 Oct

Air Canada flights from Region of Ontario to San Francisco Bay Area

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

Air Canada

23 Nov

YYZ8:05 a.m.Toronto Pearson Intl

5h 49m

SFO10:54 a.m.San Francisco

29 Nov

SFO8:25 a.m.San Francisco

8h 19m

1 stop

YYZ7:44 p.m.Toronto Pearson Intl

C$ 424

Find similar

Air Canada

23 Sep

YYZ8:05 a.m.Toronto Pearson Intl

5h 28m

SFO10:33 a.m.San Francisco

27 Sep

SFO11:40 a.m.San Francisco

8h 34m

1 stop

YYZ11:14 p.m.Toronto Pearson Intl

C$ 435

Find similar

Air Canada

25 Nov

YTZ3:30 p.m.Toronto Island

8h 52m

1 stop

SFO9:22 p.m.San Francisco

2 Dec

SFO8:25 a.m.San Francisco

10h 10m

1 stop

YTZ9:35 p.m.Toronto Island

C$ 436

Find similar

WestJet flights from Region of Ontario to San Francisco Bay Area

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

WestJet

2 Oct

YHM6:00 a.m.Hamilton

8h 54m

1 stop

SFO11:54 a.m.San Francisco

6 Oct

SFO12:50 p.m.San Francisco

8h 50m

1 stop

YHM12:40 a.m.Hamilton

C$ 305

Find similar

WestJet

30 Sep

YHM6:00 a.m.Hamilton

8h 54m

1 stop

SFO11:54 a.m.San Francisco

3 Oct

SFO12:50 p.m.San Francisco

8h 50m

1 stop

YHM12:40 a.m.Hamilton

C$ 319

Find similar

WestJet

7 Oct

YHM6:00 a.m.Hamilton

8h 54m

1 stop

SFO11:54 a.m.San Francisco

14 Oct

SFO12:50 p.m.San Francisco

8h 50m

1 stop

YHM12:40 a.m.Hamilton

C$ 328

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Thu 2/10

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

1 stop8h 54m

San Francisco

Mon 6/10

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

1 stop8h 50m

C$ 305

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Tue 30/9

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

1 stop8h 54m

San Francisco

Fri 3/10

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

1 stop8h 50m

C$ 319

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Thu 2/10

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

1 stop8h 54m

San Francisco

Mon 6/10

10:37 p.m.-12:40 a.m.

2 stops23h 03m

C$ 353

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Thu 16/10

7:05 a.m.-9:24 p.m.

2 stops17h 19m

San Francisco

Sat 25/10

7:30 a.m.-11:59 p.m.

2 stops13h 29m

C$ 377

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Mon 6/10

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

Nonstop5h 38m

San Francisco

Wed 12/11

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

Nonstop4h 57m

C$ 388

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Mon 27/10

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

Nonstop5h 55m

San Francisco

Mon 3/11

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

Nonstop4h 57m

C$ 395

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Sun 23/11

8:05 a.m.-10:54 a.m.

Nonstop5h 49m

San Francisco

Sat 29/11

8:25 a.m.-7:44 p.m.

1 stop8h 19m

C$ 424

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 23/9

8:05 a.m.-10:33 a.m.

Nonstop5h 28m

San Francisco

Sat 27/9

11:40 a.m.-11:14 p.m.

1 stop8h 34m

C$ 435

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

6:30 p.m.-9:40 p.m.

Nonstop6h 10m

San Francisco

Fri 10/10

11:45 p.m.-8:16 a.m.

Nonstop5h 31m

C$ 457

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 2/10

6:30 p.m.-9:40 p.m.

Nonstop6h 10m

San Francisco

Sat 11/10

11:45 p.m.-8:16 a.m.

Nonstop5h 31m

C$ 463

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 Region of Ontario to San Francisco Bay Area

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 San Francisco Bay Area?

In general, April is the cheapest month to fly from Region of Ontario to San Francisco Bay Area. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 449. If you aren’t able to travel during the month of April, then book flights to San Francisco Bay Area from Region of Ontario during March instead. Flights to San Francisco Bay Area in March, while not as cheap as those in April, still average around C$ 459.

What is the cheapest day to depart on your flight to San Francisco Bay Area?

The cheapest day to depart on your flight to San Francisco Bay Area is on a Friday when prices can be found for as low as C$ 780. This is often the case because there is less demand to fly during this day of the week. Flights from Region of Ontario to San Francisco Bay Area on a Monday will generally be more expensive and average around C$ 1,251. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San Francisco Bay Area?

Our most recent data shows that the best time of day to fly to San Francisco Bay Area is at noon. Flights from Region of Ontario to San Francisco Bay Area during this time can be as low as C$ 646. In the evening is when there is more demand to fly to San Francisco Bay Area, so prices are often more expensive at around C$ 1,391 per ticket.

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

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

How far in advance should I book a flight to San Francisco Bay Area?

You are more likely to see cheaper flights to San Francisco Bay Area from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco Bay Area for around C$ 528 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco Bay Area from Region of Ontario for as low as C$ 465 on momondo.

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

There are 4 cabin classes available to choose from on Ontario to San Francisco Bay Area 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 Region of Ontario to San Francisco Bay Area flights?

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

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

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

Fastest flight time	5h 28m
Direct flights	Every day
Airports in San Francisco Bay Area	1 airport

The fastest flight from Region of Ontario to San Francisco Bay Area takes 5h 28m

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

There is 1 airport near San Francisco Bay Area: San Francisco (SFO)

Search flight deals

When did momondo last update prices for flights from Ontario to San Francisco Bay Area?
Prices for flights from Ontario to San Francisco Bay Area are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario to San Francisco Bay Area?
There are 8 operators available for flights from Ontario to San Francisco Bay Area as of September 2025.
How old do you have to be to fly from Ontario to San Francisco Bay Area?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to San Francisco Bay Area.
What documentation or ID do you need to fly to San Francisco Bay Area?
The travel and health documents required for your trip to San Francisco Bay Area 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 San Francisco Bay Area. 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 Region of Ontario to San Francisco Bay Area?
Based on momondo bookings for flights between Region of Ontario and San Francisco Bay Area, the leading plane model is Embraer 195 E2, making up 36.55% of the total bookings. Other popular models include Boeing 737 MAX 8 with 15.48%, Airbus A321-100/200 with 9.09%, and Airbus A330-200 with 6.73%.

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

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

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom C$ 243	Free Cancellation	Rating 7.2 3,091 reviews	Search WestJet flights
American Airlines	PriceFrom C$ 258	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom C$ 299	Free Cancellation	Rating 7.9 7,960 reviews	Search Delta flights
Air Canada	PriceFrom C$ 306	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 335	Free Cancellation	Rating 7.4 8,937 reviews	Search United Airlines flights
Porter Airlines	PriceFrom C$ 340	Free Cancellation	Rating 7.9 363 reviews	Search Porter Airlines flights
Alaska Airlines	PriceFrom C$ 390	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Air Transat	PriceFrom C$ 424	Free Cancellation	Rating 7.7 438 reviews	Search Air Transat flights

Why use momondo?

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

It is quick and easy to find Ontario to San Francisco Bay Area flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Francisco Bay Area that suits you.

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

momondo does allow users to show only those flights to San Francisco Bay Area from Ontario which offer a flexible booking policy as well as other useful filters and features.

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

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

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

Yes. momondo can track prices for Ontario to San Francisco Bay Area 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.

An easier way to manage your San Francisco Bay Area 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

Find my bookings

Get notified when prices go down

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

1 adult

Sat 11/10

Sat 18/10

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to San Francisco Bay Area

Popular Cities in San Francisco Bay Area

Flights to Fort Lauderdalefrom C$ 155

Flights to Orlandofrom C$ 157

Flights to New Yorkfrom C$ 226

Flights to Las Vegasfrom C$ 145

Flights to Los Angelesfrom C$ 150

Flights to Miamifrom C$ 312

Flights to San Franciscofrom C$ 132

Flights to Honolulufrom C$ 262

Flights to Phoenixfrom C$ 173

Flights to Tampafrom C$ 179

Flights to Chicagofrom C$ 204

Flights to Houstonfrom C$ 248

Cheap flights from Ontario to San Francisco Bay Area from C$ 179

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to San Francisco Bay Area departing on 7/10. 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 Ontario to San Francisco Bay Area

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Air Canada flights from Region of Ontario to San Francisco Bay Area

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

WestJet flights from Region of Ontario to San Francisco Bay Area

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

momondo Fare Finder

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

See travel insights to San Francisco Bay Area from

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

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 San Francisco Bay Area?

What is the cheapest day to depart on your flight to San Francisco Bay Area?

What is the cheapest time of day to depart on your flight to San Francisco Bay Area?

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

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

How far in advance should I book a flight to San Francisco Bay Area?

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

There are 4 cabin classes available to choose from on Ontario to San Francisco Bay Area 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 Region of Ontario to San Francisco Bay Area flights?

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

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

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

Which airlines fly to San Francisco Bay Area?

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

The number of flights available between Region of Ontario and San Francisco Bay Area is 28 per day as of September 2025. The most frequent departure time is 10:00a.m., with 56% of daily flights leaving at noon.

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

The number of flights available between Region of Ontario and San Francisco Bay Area is 197 per week as of September 2025. The most frequent departure day is Wed, with 15% of weekly flights leaving on this day.

How long is the flight from Region of Ontario to San Francisco Bay Area?

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

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

Fastest flight time

Direct flights

Airports in San Francisco Bay Area

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

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

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

What documentation or ID do you need to fly to San Francisco Bay Area?

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

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

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

Why use momondo?

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

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

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

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

An easier way to manage your San Francisco Bay Area 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 San Francisco Bay Area

Popular Cities in San Francisco Bay Area

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