Find flights
Deals
Airlines
FAQs

Cheap flights from Ontario to San Francisco from C$ 194

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SFO
9 Nov — 16 Nov1
1 adult

Find flights from Ontario to San Francisco within your budget

Customize your flight search to find flights from Ontario to San Francisco 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, Cheapflights users made 503,521 searches. Data last updated 4 November 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 10/1

6:25 a.m.-12:24 p.m.

1 stop8h 59m

C$ 211

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 10/1

6:15 a.m.-1:05 p.m.

1 stop9h 50m

C$ 220

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 8/1

4:00 p.m.-9:42 p.m.

1 stop8h 42m

C$ 227

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 7/1

5:00 p.m.-9:24 a.m.

1 stop19h 24m

C$ 236

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 9/1

1:30 p.m.-7:16 a.m.

2 stops20h 46m

C$ 255

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Wed 13/11

9:35 a.m.-12:24 p.m.

Nonstop5h 49m

C$ 289

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 28/1

5:15 p.m.-9:52 a.m.

2 stops19h 37m

C$ 291

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 28/1

4:20 p.m.-6:07 p.m.

1 stop28h 47m

C$ 315

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Fri 11/4

6:50 p.m.-11:08 p.m.

1 stop7h 18m

C$ 377

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 7/1

6:00 a.m.-7:06 p.m.

1 stop16h 06m

C$ 381

Flights are sorted by cheapest first

Deals found on 3/11

Showing 1-10 of 60 results
1
2
3
...
6

Find flight deals from Ontario to San Francisco

Cheapest flights from Ontario to San Francisco
Explore the most affordable flight options available from Ontario to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2024.

Thu 21/116:55 p.m.YUL - SFO
2 stops20h 29mPorter Airlines
Wed 27/111:30 p.m.SFO - YUL
1 stop8h 00mPorter Airlines
Deal found 3/11C$ 354
Tue 31/126:45 a.m.YUL - SFO
1 stop8h 39mMultiple Airlines
Mon 13/110:59 p.m.SFO - YUL
1 stop14h 36mMultiple Airlines
Deal found 3/11C$ 393
Mon 18/114:00 p.m.YOW - SFO
1 stop8h 42mAir Canada
Wed 11/128:30 a.m.SFO - YOW
1 stop7h 28mAir Canada
Deal found 3/11C$ 402
Mon 18/112:10 p.m.YOW - SFO
1 stop10h 32mUnited Airlines
Mon 9/1210:50 p.m.SFO - YOW
1 stop15h 16mUnited Airlines
Deal found 3/11C$ 409
Thu 21/115:30 a.m.YOW - SFO
1 stop8h 22mMultiple Airlines
Fri 29/1110:45 p.m.SFO - YOW
1 stop8h 52mMultiple Airlines
Deal found 3/11C$ 410
Tue 10/127:00 p.m.YOW - SFO
2 stops20h 24mPorter Airlines
Thu 12/121:30 p.m.SFO - YOW
1 stop8h 12mPorter Airlines
Deal found 2/11C$ 418
Fri 15/115:30 p.m.YYZ - SFO
1 stop19h 59mMultiple Airlines
Sat 30/111:30 p.m.SFO - YYZ
Nonstop5h 02mMultiple Airlines
Deal found 2/11C$ 439
Sat 23/112:15 p.m.YTZ - SFO
2 stops22h 13mMultiple Airlines
Mon 25/116:33 p.m.SFO - YTZ
2 stops22h 32mMultiple Airlines
Deal found 3/11C$ 445
Thu 21/116:15 a.m.YOW - SFO
1 stop9h 50mWestJet
Fri 29/111:55 p.m.SFO - YOW
2 stops12h 38mWestJet
Deal found 4/11C$ 446
Fri 22/119:35 a.m.YYZ - SFO
Nonstop5h 49mPorter Airlines
Sat 30/111:30 p.m.SFO - YYZ
Nonstop5h 02mPorter Airlines
Deal found 4/11C$ 448
Tue 19/116:30 a.m.YYZ - SFO
1 stop9h 35mWestJet
Thu 5/121:55 p.m.SFO - YYZ
2 stops13h 05mWestJet
Deal found 3/11C$ 470
Thu 5/126:30 a.m.YKF - SFO
1 stop9h 35mWestJet
Fri 13/121:55 p.m.SFO - YKF
1 stop8h 21mWestJet
Deal found 2/11C$ 473

Best time to book a flight from Ontario to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Ontario to San Francisco

Get recent, data-driven insights about flights from Ontario to San Francisco including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Region of Ontario to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Region of Ontario to San Francisco (average of C$ 276). Flying from Region of Ontario to San Francisco in June is currently the most expensive (average of C$ 380). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ON to SFO?

Find hourly flight availability from Ontario to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 November 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to San Francisco as you normally would.

Weekly flight availability from Region of Ontario to San Francisco

Explore weekly flight availability from Ontario to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 4 November 2024.

The most flights from CAON to SFO are scheduled on a Monday (20 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 mm per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated 4 November 2024.
Read reviews from past customers who have flown Air Canada, United Airlines and Porter Airlines from Ontario to San Francisco. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,423 reviews
Check prices

Comfort

7.9

Food

7.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Alaska Airlines
8.0
Very good
9,423 reviews
Alaska Airlines
8.0
Very good
9,423 reviews
Check prices

Comfort

7.9

Food

7.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Delta
8.0
Very good
8,829 reviews
Alaska Airlines
8.0
Very good
9,423 reviews
Check prices

Comfort

7.9

Food

7.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Air Transat
7.8
Good
387 reviews
Alaska Airlines
8.0
Very good
9,423 reviews
Check prices

Comfort

7.9

Food

7.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Porter Airlines
7.7
Good
293 reviews
Alaska Airlines
8.0
Very good
9,423 reviews
Check prices

Comfort

7.9

Food

7.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

SWISS
7.6
Good
1,646 reviews
Alaska Airlines
8.0
Very good
9,423 reviews
Check prices

Comfort

7.9

Food

7.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Related info for your journey

Find useful and relevant information for your journey from Ontario to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Francisco from Ontario?

    Located just 19.0 km from the city centre, San Francisco (SFO) is the airport most travelers will use when flying to San Francisco from Ontario.

  • What are the cheapest airlines to fly from Region of Ontario to San Francisco one-way?

    One-way options have recently been found by users for as low as C$ 194 on Porter Airlines. Other airlines that offer cheap prices include WestJet from C$ 220 and Air Canada from C$ 227 one-way.

  • What are the most popular routes from Region of Ontario to San Francisco?

    While some choose either Montreal Pierre Elliott Trudeau Intl - San Francisco or Toronto Island - San Francisco, Toronto Pearson Intl - San Francisco is the most popular route from Region of Ontario to San Francisco.

  • What are the most reliable airlines from Region of Ontario to San Francisco?

    Before booking your flight to San Francisco from Region of Ontario, check out the most reliable airlines to get you to your destination on time: Porter Airlines (89%), Air Transat (89%), Air Canada( 82%).

  • What are the cheapest flights from Region of Ontario to San Francisco?

    Looking for the cheapest flight from Region of Ontario to San Francisco? While on average our users pay C$ 1,939, our data indicates the cheapest price to be C$ 254. The most popular route (Toronto Pearson Intl - San Francisco), is priced around C$ 318.

  • Can I find deals for flights from Ontario to San Francisco that include hotel bookings?

    Yes. In addition to deals on Ontario to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to San Francisco.

  • Can I find deals for business class flights from Ontario to San Francisco?

    Yes. Cheapflights offers flight deals from Ontario to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Region of Ontario to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Region of Ontario to San Francisco (average of C$ 276). Flying from Region of Ontario to San Francisco in June is currently the most expensive (average of C$ 380). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Las Vegas flights
Vancouver Intl to Las Vegas flights
Vancouver Intl to Los Angeles flights
Pearson Intl to Los Angeles flights
Vancouver Intl to Palm Springs flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pearson Intl to San Francisco flights
Vancouver Intl to San Francisco flights
Toronto Island to Las Vegas flights
Vancouver Intl to San Diego flights
Pierre Elliott Trudeau Intl to San Francisco flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Calgary to Las Vegas flights
Abbotsford to Los Angeles flights
Vancouver Intl to Santa Ana flights
Abbotsford to Las Vegas flights
Vancouver Intl to Ontario flights
Pearson Intl to Ontario flights
Calgary to Los Angeles flights
Edmonton to Los Angeles flights
Pearson Intl to San Diego flights
Toronto Island to Los Angeles flights
Abbotsford to San Francisco flights
Edmonton to Las Vegas flights
Abbotsford to Palm Springs flights
Ottawa to Las Vegas flights
Calgary to San Francisco flights
Calgary to Palm Springs flights
Winnipeg to Las Vegas flights
Edmonton to Palm Springs flights
Pearson Intl to Palm Springs flights
Abbotsford to San Diego flights
Kelowna to Las Vegas flights
Vancouver Intl to Sacramento flights
Pierre Elliott Trudeau Intl to Ontario flights
Pierre Elliott Trudeau Intl to San Diego flights
Winnipeg to Los Angeles flights
Regina to Las Vegas flights
Toronto Island to San Francisco flights
Pearson Intl to San Jose flights
Edmonton to San Francisco flights
Saskatoon to Las Vegas flights
Calgary to Ontario flights
Calgary to San Diego flights
Pearson Intl to Sacramento flights
Québec City to Las Vegas flights
Region of Waterloo Intl to Las Vegas flights
Calgary to Santa Ana flights
Abbotsford to Santa Ana flights
Pearson Intl to Santa Ana flights

Top 10 airlines flying from Ontario to San Francisco

Discover the top 10 airlines that operate flights from Ontario to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 503,521 searches. Data last updated 4 November 2024.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 237AverageC$ 673FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Lynx AirCheapestC$ 262AverageC$ 335FlexibilityNo cancel feeOn-timeN/A
Search Lynx Air flights
DeltaCheapestC$ 297AverageC$ 605FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 301AverageC$ 609FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 356AverageC$ 608FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 360AverageC$ 661FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 368AverageC$ 719FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air TransatCheapestC$ 370AverageC$ 521FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Alaska AirlinesCheapestC$ 437AverageC$ 719FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
WestJet EncoreCheapestC$ 650AverageC$ 778FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to San Francisco?

Cheapflights helps you search for flights from Ontario to San Francisco via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ontario to San Francisco?

Cheapflights helps you find that perfect flight to San Francisco from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ontario to San Francisco with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to San Francisco, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ontario to San Francisco become cheaper?

Yes! Start tracking prices for Ontario to San Francisco flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines