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Cheap flights from Ontario to San Francisco Bay Area from C$ 169

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SFO
4 Feb — 11 Feb1
1 adult

Cheap flight deals from Ontario to San Francisco Bay Area

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (CAON) to San Francisco Bay Area (zzXIH). 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 30 January 2025.

Round-trip from

C$ 310

One-way from

C$ 169

Popular in

December

Cheapest in

February

Average price

C$ 521
WestJet
  • WestJet
  • 6/5-14/5
  • 2 total stops
  • 17h 56m total
  • Ontario to San Francisco Bay Area
11/3
  • 11/3
  • 1 total stop
  • 23h 57m total
  • Ontario to San Francisco Bay Area
High demand for flights, 0% potential price rise
Cheapest flight prices on average. 2% potential price decrease (C$ 17 potential savings vs. average RT price).
Average for round-trip flights in January 2025

Find flight deals from Ontario to San Francisco Bay Area

Cheapest flights from Ontario to San Francisco Bay Area
Explore the most affordable flight options available from Ontario to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 January 2025.

Tue 6/56:00 a.m.YHM - SFO
1 stop9h 05mWestJet
Wed 14/512:50 p.m.SFO - YHM
1 stop8h 51mWestJet
Deal found 30/1C$ 310
Thu 5/66:00 a.m.YXU - SFO
2 stops34h 59mWestJet
Tue 10/66:05 p.m.SFO - YXU
1 stop8h 09mWestJet
Deal found 30/1C$ 346
Fri 25/48:00 p.m.YYZ - OAK
1 stop13h 49mMultiple Airlines
Mon 28/45:52 p.m.OAK - YYZ
2 stops16h 47mMultiple Airlines
Deal found 30/1C$ 365
Thu 20/26:45 a.m.YUL - SFO
1 stop8h 54mPorter Airlines
Wed 26/21:40 p.m.SFO - YUL
1 stop7h 55mPorter Airlines
Deal found 29/1C$ 374
Sat 31/56:45 a.m.YUL - SFO
2 stops13h 30mMultiple Airlines
Sun 22/61:25 p.m.SFO - YUL
1 stop8h 12mMultiple Airlines
Deal found 29/1C$ 377
Wed 19/22:35 p.m.YUL - SJC
2 stops22h 46mMultiple Airlines
Mon 24/29:18 p.m.SJC - YUL
1 stop16h 17mMultiple Airlines
Deal found 29/1C$ 378
Fri 23/56:20 p.m.YUL - SFO
2 stops22h 39mWestJet
Wed 28/57:30 a.m.SFO - YUL
2 stops14h 07mWestJet
Deal found 30/1C$ 381
Wed 14/53:35 p.m.YXU - SFO
1 stop9h 14mUnited Airlines
Sat 24/510:45 p.m.SFO - YXU
2 stops13h 13mUnited Airlines
Deal found 30/1C$ 381
Mon 5/56:00 a.m.YKF - SFO
2 stops10h 59mWestJet
Tue 13/512:50 p.m.SFO - YKF
1 stop8h 56mWestJet
Deal found 30/1C$ 389
Mon 10/29:45 a.m.YYZ - SFO
Nonstop5h 54mMultiple Airlines
Mon 17/210:59 p.m.SFO - YYZ
1 stop27h 56mMultiple Airlines
Deal found 30/1C$ 389
Wed 14/56:30 a.m.YYZ - SFO
1 stop8h 35mWestJet
Tue 20/52:45 p.m.SFO - YYZ
2 stops12h 27mWestJet
Deal found 30/1C$ 391
Tue 4/36:15 a.m.YYZ - SFO
1 stop8h 14mAmerican Airlines
Tue 4/312:32 a.m.SFO - YYZ
1 stop7h 38mAmerican Airlines
Deal found 30/1C$ 397

Find flights from Ontario to San Francisco Bay Area within your budget

Customize your flight search to find flights from Ontario to San Francisco Bay Area 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 629,999 searches. Data last updated 30 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Tue 6/5

6:00 a.m.-12:05 p.m.

1 stop9h 05m

San Francisco

Wed 14/5

12:50 p.m.-12:41 a.m.

1 stop8h 51m

C$ 310

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 5/6

6:00 a.m.-1:59 p.m.

2 stops34h 59m

San Francisco

Tue 10/6

6:05 p.m.-5:14 a.m.

1 stop8h 09m

C$ 346

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Fri 25/4

8:00 p.m.-6:49 a.m.

1 stop13h 49m

Oakland

Mon 28/4

5:52 p.m.-1:39 p.m.

2 stops16h 47m

C$ 365

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 20/2

6:45 a.m.-12:39 p.m.

1 stop8h 54m

San Francisco

Tue 25/2

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

1 stop7h 55m

C$ 374

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 31/5

6:45 a.m.-5:15 p.m.

2 stops13h 30m

San Francisco

Sun 22/6

1:25 p.m.-12:37 a.m.

1 stop8h 12m

C$ 377

LondonSan Francisco

YXU - SFO

YXUSFO

London

Wed 14/5

3:35 p.m.-9:49 p.m.

1 stop9h 14m

San Francisco

Sat 24/5

10:45 p.m.-2:58 p.m.

2 stops13h 13m

C$ 381

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 23/5

6:20 p.m.-1:59 p.m.

2 stops22h 39m

San Francisco

Wed 28/5

7:30 a.m.-12:37 a.m.

2 stops14h 07m

C$ 381

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Mon 5/5

6:00 a.m.-1:59 p.m.

2 stops10h 59m

San Francisco

Tue 13/5

12:50 p.m.-12:46 a.m.

1 stop8h 56m

C$ 389

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 20/2

5:15 a.m.-10:52 a.m.

1 stop8h 37m

San Francisco

Wed 26/2

4:35 p.m.-9:17 a.m.

2 stops13h 42m

C$ 398

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sat 22/3

5:15 a.m.-8:54 p.m.

2 stops18h 39m

San Francisco

Wed 2/4

4:55 p.m.-9:58 a.m.

1 stop14h 03m

C$ 400

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/1

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to San Francisco Bay Area

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area 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 Bay Area

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

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

Currently, January is the cheapest month in which you can book a flight from Region of Ontario to San Francisco Bay Area (average of C$ 276). Flying from Region of Ontario to San Francisco Bay Area 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 XIH?

Find hourly flight availability from Ontario to San Francisco Bay Area. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 January 2025.

When flying from Region of Ontario to San Francisco Bay Area, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Region of Ontario to San Francisco Bay Area

Explore weekly flight availability from Ontario to San Francisco Bay Area. 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 30 January 2025.

The most flights from CAON to zzXIH are scheduled on a Friday (17 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in San Francisco Bay Area by month

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

In terms of precipitation, rainfall in San Francisco Bay Area 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 Bay Area when rainfall is around 0.0 mm.

Temperature in San Francisco Bay Area by month

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

If weather is an important factor for your trip to San Francisco Bay Area, 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 Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. 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 Bay Area. Reviews last updated 30 January 2025.
See what other customers who have flown with Alaska Airlines, Delta and Porter Airlines from Ontario to San Francisco Bay Area have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

8.0
Very good

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

Find useful and relevant information for your journey from Ontario to San Francisco Bay Area. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines to fly from Region of Ontario to San Francisco Bay Area one-way?

    C$ 173 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from C$ 203 and C$ 226, respectively.

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

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

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

    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 Bay Area.

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

    Yes. Cheapflights offers flight deals from Ontario to San Francisco Bay Area 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 Bay Area?

    Currently, January is the cheapest month in which you can book a flight from Region of Ontario to San Francisco Bay Area (average of C$ 276). Flying from Region of Ontario to San Francisco Bay Area 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

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

Alternative routes for Ontario to San Francisco Bay Area

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

Top 10 airlines flying from Ontario to San Francisco Bay Area

Discover the top 10 airlines that operate flights from Ontario to San Francisco Bay Area. 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 629,999 searches. Data last updated 30 January 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 245AverageC$ 689FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Lynx AirCheapestC$ 288AverageC$ 349FlexibilityNo cancel feeOn-timeN/A
Search Lynx Air flights
American AirlinesCheapestC$ 312AverageC$ 597FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 352AverageC$ 548FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 357AverageC$ 623FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 371AverageC$ 669FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 403AverageC$ 804FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapestC$ 418AverageC$ 756FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Air TransatCheapestC$ 502AverageC$ 536FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJet EncoreCheapestC$ 675AverageC$ 742FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights

Fly with Cheapflights

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

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

Cheapflights simply makes it quick and affordable to book flights from Ontario to San Francisco Bay Area by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to San Francisco Bay Area from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for Ontario to San Francisco Bay Area 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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