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

The number of flights available between Region of Ontario and San Francisco is 29 per day as of July 2026. The most frequent departure time is 6:00p.m., with 50% of daily flights leaving at noon.

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

The number of flights available between Region of Ontario and San Francisco is 206 per week as of July 2026. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.

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

WestJet, Air Canada, and Porter Airlines are the most popular carriers operating from Ontario to San Francisco

Which airlines fly to San Francisco?

Porter Airlines, Air Canada and United Airlines are the top three most popular airlines that fly to San Francisco from Region of Ontario according to our data. Porter Airlines is the first choice among our users, with 44% of people opting to fly with this airline when travelling to San Francisco. Keep in mind that there are 8 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to San Francisco?

The average flight duration from Region of Ontario to San Francisco depends on which airport you fly into and out of. Flying from Toronto to San Francisco is 7h 37m on average, while flying from Ottawa to San Francisco is 8h 20m on average. San Francisco is the most popular airport in San Francisco.

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

Prices for flights from Ontario to San Francisco Airport are updated daily.

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

The number of operators available for flights from Ontario to San Francisco Airport is 7 as of July 2026.

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

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 Ontario to San Francisco Airport.

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

The travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 212 Cheap Flights from Ontario to San Francisco in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to San Francisco

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

YXU

SFO

8h 50m

1 stop

6:05 p.m. - 5:20 a.m.

SFO

YXU

8h 15m

1 stop

C$ 360WestJet

Wed, 19 Aug - Wed, 26 Aug

2:40 p.m. - 9:55 p.m.

YXU

SFO

10h 15m

2 stops

1:00 p.m. - 1:50 p.m.

SFO

YXU

21h 50m

2 stops

C$ 405WestJet

Fri, 21 Aug - Sat, 29 Aug

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

YXU

SFO

8h 50m

1 stop

1:00 p.m. - 1:50 p.m.

SFO

YXU

21h 50m

2 stops

C$ 408WestJet

Fri, 21 Aug - Sat, 29 Aug

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

YOW

SFO

9h 00m

1 stop

1:00 p.m. - 12:40 a.m.

SFO

YOW

8h 40m

1 stop

C$ 429WestJet

Sat, 22 Aug - Sat, 29 Aug

9:45 a.m. - 12:20 p.m.

YYZ

SFO

5h 35mdirect

1:20 p.m. - 9:25 p.m.

SFO

YYZ

5h 05mdirect

C$ 468Air Transat

Tue, 29 Sep - Sat, 3 Oct

9:45 a.m. - 12:20 p.m.

YYZ

SFO

5h 35mdirect

1:00 p.m. - 12:10 a.m.

SFO

YYZ

8h 10m

1 stop

C$ 472Multiple Airlines

Fri, 4 Sep - Fri, 25 Sep

9:45 a.m. - 12:20 p.m.

YYZ

SFO

5h 35mdirect

1:45 p.m. - 9:39 p.m.

SFO

YYZ

4h 54mdirect

C$ 475Porter Airlines

Fri, 23 Oct - Tue, 27 Oct

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

YUL

SFO

8h 35m

1 stop

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

SFO

YUL

8h 17m

1 stop

C$ 517Porter Airlines

Sat, 26 Sep - Sun, 4 Oct

5:40 a.m. - 3:21 p.m.

YXU

SFO

12h 41m

2 stops

4:30 p.m. - 5:43 p.m.

SFO

YXU

22h 13m

2 stops

C$ 519Air Canada

Thu, 10 Sep - Mon, 14 Sep

5:30 a.m. - 11:10 a.m.

YXU

SFO

8h 40m

1 stop

5:35 p.m. - 8:37 a.m.

SFO

YXU

12h 02m

2 stops

C$ 534Air Canada

Wed, 25 Nov - Mon, 7 Dec

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

WestJet flights from Region of Ontario to San Francisco

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

WestJet

19 Aug

YXU6:10 a.m.London

8h 50m

1 stop

SFO12:00 p.m.San Francisco

26 Aug

SFO6:05 p.m.San Francisco

8h 15m

1 stop

YXU5:20 a.m.London

C$ 360

WestJet

21 Aug

YXU2:40 p.m.London

10h 15m

2 stops

SFO9:55 p.m.San Francisco

29 Aug

SFO1:00 p.m.San Francisco

21h 50m

2 stops

YXU1:50 p.m.London

C$ 405

WestJet

21 Aug

YXU6:10 a.m.London

8h 50m

1 stop

SFO12:00 p.m.San Francisco

29 Aug

SFO1:00 p.m.San Francisco

21h 50m

2 stops

YXU1:50 p.m.London

C$ 408

Air Canada flights from Region of Ontario to San Francisco

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

Air Canada

10 Sep

YXU5:40 a.m.London

12h 41m

2 stops

SFO3:21 p.m.San Francisco

14 Sep

SFO4:30 p.m.San Francisco

22h 13m

2 stops

YXU5:43 p.m.London

C$ 519

Air Canada

1 Dec

YYZ2:30 p.m.Toronto Pearson Intl

9h 02m

1 stop

SFO8:32 p.m.San Francisco

10 Dec

SFO9:00 a.m.San Francisco

7h 57m

1 stop

YYZ7:57 p.m.Toronto Pearson Intl

C$ 523

Air Canada

25 Nov

YXU5:30 a.m.London

8h 40m

1 stop

SFO11:10 a.m.San Francisco

7 Dec

SFO5:35 p.m.San Francisco

12h 02m

2 stops

YXU8:37 a.m.London

C$ 534

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonSan Francisco

YXU - SFO

YXUSFO

London

Wed 19/8

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

1 stop8h 50m

San Francisco

Wed 26/8

6:05 p.m.-5:20 a.m.

1 stop8h 15m

C$ 360

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 21/8

2:40 p.m.-9:55 p.m.

2 stops10h 15m

San Francisco

Sat 29/8

1:00 p.m.-1:50 p.m.

2 stops21h 50m

C$ 405

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 21/8

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

1 stop8h 50m

San Francisco

Sat 29/8

1:00 p.m.-1:50 p.m.

2 stops21h 50m

C$ 408

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sat 22/8

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

1 stop9h 00m

San Francisco

Sat 29/8

1:00 p.m.-12:40 a.m.

1 stop8h 40m

C$ 429

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 29/9

9:45 a.m.-12:20 p.m.

Nonstop5h 35m

San Francisco

Sat 3/10

1:20 p.m.-9:25 p.m.

Nonstop5h 05m

C$ 468

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Fri 4/9

9:45 a.m.-12:20 p.m.

Nonstop5h 35m

San Francisco

Fri 25/9

1:00 p.m.-12:10 a.m.

1 stop8h 10m

C$ 472

Quickest round-trip

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Fri 23/10

9:45 a.m.-12:20 p.m.

Nonstop5h 35m

San Francisco

Tue 27/10

1:45 p.m.-9:39 p.m.

Nonstop4h 54m

C$ 475

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 26/9

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

1 stop8h 35m

San Francisco

Sun 4/10

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

1 stop8h 17m

C$ 517

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 10/9

5:40 a.m.-3:21 p.m.

2 stops12h 41m

San Francisco

Mon 14/9

4:30 p.m.-5:43 p.m.

2 stops22h 13m

C$ 519

LondonSan Francisco

YXU - SFO

YXUSFO

London

Wed 25/11

5:30 a.m.-11:10 a.m.

1 stop8h 40m

San Francisco

Mon 7/12

5:35 p.m.-8:37 a.m.

2 stops12h 02m

C$ 534

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

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?

The cheapest month to fly to San Francisco from Region of Ontario is in January. Flight prices, which tend to average around C$ 502, are often lower during this time because this is during the off-season. The month of November is another great option to travel to San Francisco, with average flight prices from Region of Ontario averaging around C$ 507.

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

The cheapest day to depart from Region of Ontario to San Francisco is on a Friday. Travellers who choose to depart for San Francisco on a Friday will often find tickets for as low as C$ 771. On the other hand, Sunday is the most expensive day to depart from Region of Ontario because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 1,198.

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

Flying to San Francisco from Region of Ontario in the morning is the least expensive time of day to depart. momondo users have found prices as low as C$ 750 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to San Francisco is in the evening when prices are around C$ 1,337.

What is the cheapest Ontario to San Francisco flight route?

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

How far in advance should I book a flight from Ontario to San Francisco?

You are more likely to see cheaper flights to San Francisco from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around C$ 559 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Region of Ontario for as low as C$ 486 on momondo.

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

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

You could potentially save up to 4% on your flight if you consider stops on a Region of Ontario to San Francisco flight.

Cheap Region of Ontario to San Francisco flight deals and tips

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

Best price found	C$ 382
Fastest flight time	5h 35m
Direct flights	Every day
Airports in San Francisco	1 airport

The best one-way flight to San Francisco from Region of Ontario in the past 72 hours is C$ 382. The best round-trip flight deal from Region of Ontario to San Francisco found on momondo in the last 72 hours is C$ 650.

The fastest flight from Region of Ontario to San Francisco takes 5h 35m

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

There is 1 airport in San Francisco. From Region of Ontario there are direct flights to San Francisco (SFO).

Search flight deals

Frequently asked questions about flying from Ontario to San Francisco

When did momondo last update prices for flights from Ontario to San Francisco Airport?
Prices for flights from Ontario to San Francisco Airport are updated daily.
How many operators does momondo search for flights from Ontario to San Francisco Airport?
The number of operators available for flights from Ontario to San Francisco Airport is 7 as of July 2026.
How old do you have to be to fly from Ontario to San Francisco Airport?
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 Ontario to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Region of Ontario to San Francisco?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Region of Ontario to San Francisco is Embraer 195 E2 (29.93% of total bookings). The next most popular plane models are Boeing 737-800 (20.29%), Airbus A220-300 (11.37%), and Boeing 737 MAX 8 (11.14%).

Best airlines flying from Region of Ontario to San Francisco

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

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom C$ 223	Free Cancellation	Rating 7.2 3,411 reviews	Search WestJet flights
Air Canada	PriceFrom C$ 259	Free Cancellation	Rating 7.1 11,360 reviews	Search Air Canada flights
Delta	PriceFrom C$ 289	Free Cancellation	Rating 7.8 8,476 reviews	Search Delta flights
Porter Airlines	PriceFrom C$ 317	Free Cancellation	Rating 8.0 447 reviews	Search Porter Airlines flights
American Airlines	PriceFrom C$ 353	Free Cancellation	Rating 7.1 11,825 reviews	Search American Airlines flights
Air Transat	PriceFrom C$ 385	Free Cancellation	Rating 7.8 566 reviews	Search Air Transat flights
United Airlines	PriceFrom C$ 467	Free Cancellation	Rating 7.4 10,014 reviews	Search United Airlines flights

San Mateo

South San Francisco

Palo Alto

Santa Cruz

Pacific Grove

Milpitas

Belmont

Carmel-by-the-Sea

Turlock

Mountain View

Burlingame

Fremont

Santa Clara

Cupertino

Pacifica

Woodland

Los Banos

Roseville

Berkeley

Antioch

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to San Francisco . Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Ontario to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Francisco from Ontario.

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

If you are not ready to book a flight from Ontario to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.

An easier way to manage your San Francisco 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

Tue 18/8

Tue 25/8

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 the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from Ontario

Complete your trip

Feeling lucky

Cheap flights from Ontario to San Francisco from C$ 212

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 departing on 18/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Ontario to San Francisco

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

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

WestJet flights from Region of Ontario to San Francisco

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

Air Canada flights from Region of Ontario to San Francisco

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

momondo Fare Finder

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

See travel insights to San Francisco from

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

What is the cheapest month to fly to San Francisco?

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

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

What is the cheapest Ontario to San Francisco flight route?

How far in advance should I book a flight from Ontario to San Francisco?

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

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

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

Which airlines fly to San Francisco?

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

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

How long does it take to fly to San Francisco?

Cheap Region of Ontario to San Francisco flight deals and tips

Best price found

Fastest flight time

Direct flights

Airports in San Francisco

Frequently asked questions about flying from Ontario to San Francisco

Best airlines flying from Region of Ontario to San Francisco

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

Travelling to a place near San Francisco?

Why use momondo?

An easier way to manage your San Francisco 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 the United States

Airports servicing California

Fly your favourite airline to San Francisco

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to San Francisco

List of cabin classes available on flights landing in San Francisco. Availability may vary depending on flight origin and airline.

Popular Cities in the United States

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

Fly to other destinations from Ontario

According to popular flight searches on momondo this year

Complete your trip to San Francisco

Explore popular destinations other users love

According to popular flight searches on momondo this year