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Cheap flights from Ontario to San Francisco from C$ 225

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 16/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SFO
26 Nov — 3 Dec1
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 640,016 searches. Data last updated 21 November 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 23/1

6:45 a.m.-12:24 p.m.

1 stop8h 39m

San Francisco

Thu 6/2

1:30 p.m.-12:30 a.m.

1 stop8h 00m

C$ 363

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 30/1

6:20 a.m.-12:24 p.m.

1 stop9h 04m

San Francisco

Sun 2/2

1:30 p.m.-12:40 a.m.

1 stop8h 10m

C$ 408

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Tue 14/1

5:35 p.m.-7:14 a.m.

1 stop16h 39m

San Francisco

Tue 21/1

8:06 a.m.-12:30 a.m.

2 stops13h 24m

C$ 416

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Mon 13/1

5:00 p.m.-11:13 p.m.

1 stop9h 13m

San Francisco

Sat 18/1

5:14 a.m.-9:24 p.m.

2 stops13h 10m

C$ 430

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 30/1

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

1 stop9h 50m

San Francisco

Sun 2/2

1:55 p.m.-5:29 a.m.

2 stops12h 34m

C$ 433

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Sun 15/12

10:20 a.m.-10:01 p.m.

1 stop14h 41m

San Francisco

Thu 9/1

3:05 p.m.-5:55 a.m.

1 stop11h 50m

C$ 441

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Thu 24/4

6:30 a.m.-1:06 p.m.

1 stop9h 36m

San Francisco

Tue 29/4

7:30 a.m.-9:03 p.m.

2 stops10h 33m

C$ 451

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 30/1

6:30 a.m.-1:05 p.m.

1 stop9h 35m

San Francisco

Sun 9/3

1:55 p.m.-1:16 a.m.

1 stop8h 21m

C$ 455

LondonSan Francisco

YXU - SFO

YXUSFO

London

Wed 19/3

3:25 p.m.-9:42 p.m.

1 stop9h 17m

San Francisco

Mon 24/3

10:45 p.m.-9:15 a.m.

1 stop7h 30m

C$ 461

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Sun 2/2

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

Nonstop5h 49m

San Francisco

Mon 3/2

1:30 p.m.-9:32 p.m.

Nonstop5h 02m

C$ 468

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/11

Showing 1-10 of 60 results
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Cheap flight deals from Ontario to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (CAON) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 November 2024.

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 21 November 2024.

Sat 7/126:45 a.m.YUL - SFO
1 stop8h 39mPorter Airlines
Wed 11/121:30 p.m.SFO - YUL
1 stop7h 58mPorter Airlines
Deal found 21/11C$ 378
Sun 15/1210:20 a.m.YYZ - SFO
1 stop14h 41mMultiple Airlines
Thu 9/13:05 p.m.SFO - YYZ
1 stop11h 50mMultiple Airlines
Deal found 21/11C$ 441
Tue 10/129:35 a.m.YYZ - SFO
Nonstop5h 49mPorter Airlines
Wed 15/11:30 p.m.SFO - YYZ
Nonstop5h 02mPorter Airlines
Deal found 21/11C$ 468
Thu 5/125:35 p.m.YUL - SFO
1 stop16h 39mMultiple Airlines
Tue 10/123:18 p.m.SFO - YUL
2 stops14h 40mMultiple Airlines
Deal found 21/11C$ 476
Wed 27/119:35 a.m.YYZ - SFO
Nonstop5h 49mAir Transat
Tue 3/121:30 p.m.SFO - YYZ
Nonstop5h 02mAir Transat
Deal found 21/11C$ 482
Wed 18/128:05 a.m.YYZ - SFO
Nonstop5h 47mAir Canada
Fri 10/18:30 a.m.SFO - YYZ
1 stop9h 20mAir Canada
Deal found 21/11C$ 489
Sun 15/126:30 a.m.YYZ - SFO
1 stop9h 35mWestJet
Fri 10/11:55 p.m.SFO - YYZ
2 stops13h 05mWestJet
Deal found 21/11C$ 492
Tue 10/124:20 p.m.YYZ - SFO
1 stop8h 46mAlaska Airlines
Wed 15/12:07 p.m.SFO - YYZ
2 stops21h 58mAlaska Airlines
Deal found 21/11C$ 507
Sun 15/125:04 p.m.YYZ - SFO
1 stop10h 14mDelta
Tue 7/110:45 p.m.SFO - YYZ
1 stop7h 35mDelta
Deal found 21/11C$ 518
Thu 12/128:35 p.m.YKF - SFO
2 stops19h 30mMultiple Airlines
Sun 12/11:55 p.m.SFO - YKF
1 stop13h 20mMultiple Airlines
Deal found 20/11C$ 535
Fri 6/126:00 p.m.YYZ - SFO
Nonstop5h 59mUnited Airlines
Sun 8/126:45 a.m.SFO - YYZ
1 stop13h 07mUnited Airlines
Deal found 21/11C$ 536
Thu 19/126:25 a.m.YOW - SFO
1 stop8h 59mPorter Airlines
Fri 24/11:30 p.m.SFO - YOW
1 stop8h 10mPorter Airlines
Deal found 21/11C$ 612

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, February is the cheapest month in which you can book a flight from Region of Ontario to San Francisco (average of C$ 272). Flying from Region of Ontario to San Francisco in June is currently the most expensive (average of C$ 379). 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 21 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 21 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 21 November 2024.
Read reviews from past customers who have flown Porter Airlines, United Airlines and Air Canada from Ontario to San Francisco. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
9,464 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.2

Reviews

1 / 10

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

8.0
Very good
9,464 reviews
8.0
Very good
9,464 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.2

Reviews

1 / 10

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

8.0
Very good
8,755 reviews
8.0
Very good
9,464 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.2

Reviews

1 / 10

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

7.8
Good
288 reviews
8.0
Very good
9,464 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.2

Reviews

1 / 10

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

7.8
Good
389 reviews
8.0
Very good
9,464 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.2

Reviews

1 / 10

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

7.4
Good
9,172 reviews
8.0
Very good
9,464 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.2

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$ 225 on WestJet. Other airlines that offer cheap prices include Porter Airlines from C$ 244 and Air Canada from C$ 246 one-way.

  • What are the most popular routes 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 (85%), Air Transat (85%), Air Canada( 79%).

  • 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$ 1,875, 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, February is the cheapest month in which you can book a flight from Region of Ontario to San Francisco (average of C$ 272). Flying from Region of Ontario to San Francisco in June is currently the most expensive (average of C$ 379). 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

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Alternative routes for Ontario to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

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 640,016 searches. Data last updated 21 November 2024.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 237AverageC$ 676FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Lynx AirCheapestC$ 262AverageC$ 336FlexibilityNo cancel feeOn-timeN/A
Search Lynx Air flights
DeltaCheapestC$ 297AverageC$ 606FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 301AverageC$ 617FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 352AverageC$ 607FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 359AverageC$ 672FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 365AverageC$ 697FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapestC$ 438AverageC$ 678FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Air TransatCheapestC$ 486AverageC$ 519FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJet EncoreCheapestC$ 653AverageC$ 792FlexibilityNo 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.

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