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

Airlines like WestJet, Delta, and United Airlines fly from Region of Ontario to San Francisco Bay Area in about 15h 06m. The time it takes to get you to your destination can typically vary by up to 15h 39m. Airlines will cover a distance of 3626 km. This flight may include one or multiple stops.

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

C$ 178 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Porter Airlines and Air Transat, with prices starting from C$ 214 and C$ 227, respectively.

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.

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).

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.

C$ 239+ Cheap Flights from Ontario to San Francisco Bay Area

Cheap flight deals from Ontario to San Francisco Bay Area

Enter your travel dates to find the best prices.

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Best

Direct

Last-minute

One-way

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 18 September 2026.

Thu 15/1012:25 p.m. -

2 stops12h 30m

Thu 22/106:00 a.m. -

1 stop10h 20m

Deal found 15/9C$ 348

Thu 15/1012:25 p.m. -

2 stops12h 30m

Wed 21/106:05 p.m. -

1 stop8h 30m

Deal found 14/9C$ 353

Wed 14/106:55 a.m. -

2 stops12h 45m

Wed 21/106:05 p.m. -

1 stop8h 30m

Deal found 14/9C$ 379

Wed 7/107:20 a.m. -

1 stop17h 35m

Tue 13/106:00 a.m. -

1 stop8h 15m

Deal found 15/9C$ 401

Tue 13/108:15 p.m. -

1 stop23h 25m

Tue 20/106:00 a.m. -

1 stop10h 20m

Deal found 13/9C$ 403

Wed 7/107:20 a.m. -

1 stop17h 35m

Wed 21/106:05 p.m. -

1 stop8h 30m

Deal found 15/9C$ 404

Sun 8/119:50 a.m. -

Nonstop5h 55m

Tue 17/111:45 p.m. -

Nonstop4h 54m

Deal found 13/9C$ 404

Thu 15/103:50 p.m. -

1 stop9h 05m

Mon 19/101:00 p.m. -

1 stop8h 10m

Deal found 13/9C$ 408

Thu 15/103:50 p.m. -

1 stop9h 05m

Wed 21/101:00 p.m. -

2 stops13h 10m

Deal found 14/9C$ 410

Wed 14/1012:40 p.m. -

2 stops12h 15m

Sat 17/101:00 p.m. -

1 stop8h 10m

Deal found 17/9C$ 413

Wed 14/1012:40 p.m. -

2 stops12h 15m

Tue 20/106:00 a.m. -

1 stop8h 10m

Deal found 16/9C$ 415

Sat 17/1012:40 p.m. -

2 stops12h 15m

Sat 24/101:00 p.m. -

1 stop8h 10m

Deal found 17/9C$ 417

Best flights from Ontario to San Francisco Bay Area
Discover carefully curated flight deals from Ontario to San Francisco Bay Area that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Mon 28/96:10 p.m. -

1 stop30h 45m

Fri 2/106:00 a.m. -

1 stop8h 15m

Deal found 15/9C$ 445

Thu 15/106:30 a.m. -

Nonstop5h 38m

Mon 19/107:30 p.m. -

1 stop10h 30m

Deal found 17/9C$ 480

Tue 13/106:00 a.m. -

2 stops16h 52m

Fri 16/106:34 p.m. -

2 stops12h 49m

Deal found 16/9C$ 484

Fri 2/1010:45 a.m. -

1 stop15h 06m

Mon 12/1011:10 p.m. -

1 stop7h 54m

Deal found 17/9C$ 490

Fri 20/116:45 a.m. -

1 stop9h 00m

Sun 29/111:45 p.m. -

1 stop7h 50m

Deal found 14/9C$ 525

Mon 2/114:35 p.m. -

1 stop9h 26m

Mon 9/118:25 a.m. -

Nonstop5h 21m

Deal found 17/9C$ 715

Tue 3/115:15 p.m. -

1 stop8h 25m

Mon 9/117:52 p.m. -

1 stop17h 13m

Deal found 16/9C$ 733

Fri 16/108:40 p.m. -

1 stop28h 15m

Sun 18/106:00 a.m. -

1 stop10h 50m

Deal found 16/9C$ 457

Sat 17/106:00 a.m. -

2 stops13h 20m

Tue 20/104:31 p.m. -

2 stops13h 18m

Deal found 15/9C$ 485

Sat 3/101:00 p.m. -

1 stop9h 32m

Wed 14/104:30 p.m. -

1 stop9h 20m

Deal found 16/9C$ 490

Tue 20/105:15 p.m. -

1 stop8h 27m

Sat 24/101:00 p.m. -

2 stops17h 14m

Deal found 14/9C$ 506

Sun 18/106:10 p.m. -

1 stop30h 45m

Tue 20/106:00 a.m. -

1 stop8h 15m

Deal found 15/9C$ 467

Wed 11/115:55 p.m. -

2 stops21h 50m

Tue 17/111:45 p.m. -

1 stop7h 50m

Deal found 14/9C$ 537

Tue 10/116:30 a.m. -

1 stop7h 57m

Mon 16/115:54 p.m. -

2 stops14h 25m

Deal found 15/9C$ 505

Fri 23/101:00 p.m. -

1 stop12h 42m

Sun 25/106:30 a.m. -

1 stop7h 17m

Deal found 12/9C$ 506

Tue 29/98:40 p.m. -

1 stop28h 15m

Sat 3/106:00 a.m. -

1 stop10h 50m

Deal found 15/9C$ 469

Sat 21/116:45 a.m. -

1 stop9h 00m

Tue 1/121:45 p.m. -

1 stop7h 50m

Deal found 14/9C$ 537

Fri 9/101:34 p.m. -

1 stop12h 25m

Fri 16/1010:25 p.m. -

1 stop10h 54m

Deal found 13/9C$ 511

Fri 23/105:15 p.m. -

1 stop8h 27m

Tue 3/118:45 a.m. -

2 stops11h 41m

Deal found 14/9C$ 512

Tue 29/98:40 p.m. -

1 stop28h 15m

Thu 1/106:00 a.m. -

1 stop10h 50m

Deal found 15/9C$ 469

Thu 15/106:05 a.m. -

1 stop18h 50m

Mon 19/106:00 a.m. -

1 stop10h 50m

Deal found 14/9C$ 576

Tue 29/98:40 p.m. -

1 stop28h 15m

Sun 4/106:00 a.m. -

1 stop10h 50m

Deal found 13/9C$ 470

Sat 24/1011:00 a.m. -

2 stops25h 39m

Thu 29/102:14 p.m. -

1 stop16h 33m

Deal found 16/9C$ 525

Mon 23/116:45 a.m. -

1 stop9h 00m

Sun 29/111:45 p.m. -

1 stop7h 50m

Deal found 14/9C$ 579

Thu 5/115:15 p.m. -

2 stops19h 05m

Sun 8/117:00 a.m. -

1 stop30h 05m

Deal found 13/9C$ 751

Sat 10/1011:38 a.m. -

1 stop13h 17m

Tue 13/108:00 a.m. -

1 stop10h 59m

Deal found 16/9C$ 567

Fri 9/107:00 a.m. -

1 stop8h 20m

Mon 12/106:00 a.m. -

1 stop10h 20m

Deal found 14/9C$ 639

Mon 2/115:55 p.m. -

2 stops21h 50m

Mon 9/111:45 p.m. -

1 stop7h 50m

Deal found 17/9C$ 583

Wed 30/98:40 p.m. -

1 stop28h 15m

Fri 2/106:00 a.m. -

1 stop10h 50m

Deal found 14/9C$ 491

Wed 28/106:45 a.m. -

1 stop8h 17m

Sun 1/116:30 a.m. -

1 stop7h 17m

Deal found 14/9C$ 546

Find flight deals from Ontario to San Francisco Bay Area

Round-trip from	C$ 348
One-way from	C$ 239
Popular in	July
Cheapest in	January
Average price	C$ 551

WestJet
15/10-22/10
3 total stops
22h 50m total
Ontario to San Francisco Bay Area

Search Deals

29/10-31/12
1 total stop
8h 30m total
Ontario to San Francisco Bay Area

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (C$ 101 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 14 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights 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

Cheapest round-trip

Quickest round-trip

TorontoSan Francisco

YYZ Toronto Pearson Intl - SFO San Francisco

YYZSFO

Toronto Pearson Intl

Sat 17/10

6:30 a.m.-9:08 a.m.

Nonstop5h 38m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 278

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Wed 14/10

8:40 p.m.-9:55 p.m.

1 stop28h 15m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 280

HamiltonSan Francisco

YHM Hamilton - SFO San Francisco

YHMSFO

Hamilton

Fri 23/10

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

1 stop20h 50m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 281

HamiltonSan Francisco

YHM Hamilton - SFO San Francisco

YHMSFO

Hamilton

Sun 6/12

3:25 p.m.-3:50 p.m.

1 stop27h 25m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 281

TorontoSan Jose

YYZ Toronto Pearson Intl - SJC San Jose

YYZSJC

Toronto Pearson Intl

Fri 2/10

11:38 a.m.-10:06 p.m.

2 stops13h 28m

San Jose

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 283

TorontoSan Jose

YYZ Toronto Pearson Intl - SJC San Jose

YYZSJC

Toronto Pearson Intl

Fri 23/10

11:38 a.m.-9:25 p.m.

1 stop12h 47m

San Jose

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 283

TorontoSan Jose

YYZ Toronto Pearson Intl - SJC San Jose

YYZSJC

Toronto Pearson Intl

Mon 5/10

11:38 a.m.-9:22 p.m.

1 stop12h 44m

San Jose

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 284

TorontoSan Jose

YYZ Toronto Pearson Intl - SJC San Jose

YYZSJC

Toronto Pearson Intl

Fri 9/10

12:10 p.m.-11:50 p.m.

2 stops14h 40m

San Jose

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 284

TorontoSan Jose

YYZ Toronto Pearson Intl - SJC San Jose

YYZSJC

Toronto Pearson Intl

Tue 13/10

12:10 p.m.-10:08 p.m.

2 stops12h 58m

San Jose

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 284

TorontoSan Jose

YYZ Toronto Pearson Intl - SJC San Jose

YYZSJC

Toronto Pearson Intl

Fri 16/10

2:26 p.m.-11:50 p.m.

2 stops12h 24m

San Jose

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 284

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

YHM-SFO

YYZ-SFO

YYZ-SJC

YUL-SFO

YYZ-OAK

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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to San Francisco Bay Area

CAON-zzXIH

YHM-SFO

YYZ-SFO

YYZ-SJC

YUL-SFO

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$ 506). Flying from Region of Ontario to San Francisco Bay Area in August is currently the most expensive (average of C$ 670). 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?

It’s optimal to fly from Region of Ontario to San Francisco Bay Area in the morning. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight in the afternoon.

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

The most flights from CAON to zzXIH are scheduled on a Thursday (27 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (19 on average).

How far ahead should I book a flight from Region of Ontario to San Francisco Bay Area?

Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from Region of Ontario to San Francisco Bay Area. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest day to fly from Region of Ontario to San Francisco Bay Area?

Travelers seeking maximum savings on their Region of Ontario to San Francisco Bay Area flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

How long is the flight from Region of Ontario to San Francisco Bay Area?
Airlines like WestJet, Delta, and United Airlines fly from Region of Ontario to San Francisco Bay Area in about 15h 06m. The time it takes to get you to your destination can typically vary by up to 15h 39m. Airlines will cover a distance of 3626 km. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Region of Ontario to San Francisco Bay Area one-way?
C$ 178 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Porter Airlines and Air Transat, with prices starting from C$ 214 and C$ 227, 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$ 506). Flying from Region of Ontario to San Francisco Bay Area in August is currently the most expensive (average of C$ 670). 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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Top 8 airlines flying from Ontario to San Francisco Bay Area

Airline	Cheapest	Average	Flexibility	On-time
Delta	CheapestC$ 288	AverageC$ 653	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Alaska Airlines	CheapestC$ 294	AverageC$ 403	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
WestJet	CheapestC$ 299	AverageC$ 515	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Porter Airlines	CheapestC$ 319	AverageC$ 572	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
American Airlines	CheapestC$ 353	AverageC$ 633	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Air Transat	CheapestC$ 358	AverageC$ 595	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Air Canada	CheapestC$ 395	AverageC$ 766	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 408	AverageC$ 662	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Francisco Bay Area from Ontario today with Cheapflights!

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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Cheap flights from Ontario to San Francisco Bay Area from C$ 239

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to San Francisco Bay Area

Cheapest flights from Ontario to San Francisco Bay AreaExplore 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 18 September 2026.

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 18 September 2026.

Best flights from Ontario to San Francisco Bay AreaDiscover carefully curated flight deals from Ontario to San Francisco Bay Area that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Discover carefully curated flight deals from Ontario to San Francisco Bay Area that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Direct flights from Ontario to San Francisco Bay AreaExplore direct flight options from Ontario to San Francisco Bay Area based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 September 2026.

Explore direct flight options from Ontario to San Francisco Bay Area based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 September 2026.

Last-minute flights from Ontario to San Francisco Bay AreaDiscover last-minute flight deals from Ontario to San Francisco Bay Area. Data last updated 18 September 2026 and is based on user searches.

Discover last-minute flight deals from Ontario to San Francisco Bay Area. Data last updated 18 September 2026 and is based on user searches.

One-way flights from Ontario to San Francisco Bay AreaSearch for one-way flight options from Ontario to San Francisco Bay Area. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

Search for one-way flight options from Ontario to San Francisco Bay Area. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

Find flight deals from Ontario to San Francisco Bay Area

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

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 18 September 2026.

It’s optimal to fly from Region of Ontario to San Francisco Bay Area in the morning. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight in the afternoon.

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

The most flights from CAON to zzXIH are scheduled on a Thursday (27 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (19 on average).

How far ahead should I book a flight from Region of Ontario to San Francisco Bay Area?

Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from Region of Ontario to San Francisco Bay Area. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest day to fly from Region of Ontario to San Francisco Bay Area?

Use this chart to determine the cheapest time to fly round-trip from Ontario to San Francisco Bay Area. Price data was last updated on 12 September 2026.

Travelers seeking maximum savings on their Region of Ontario to San Francisco Bay Area flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

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

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

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

How can I 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?

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

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.

Complete your trip

Complete your trip to San Francisco Bay Area by adding a car rental and/or hotel reservation to your travel itinerary.

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Search flights from Ontario to San Francisco Bay Area by cabin class

Find flights from Ontario to San Francisco Bay Area, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ontario and San Francisco Bay Area flights

Browse other Ontario and San Francisco Bay Area flight options. Last updated on 18 September 2026.

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Top 8 airlines flying from Ontario to San Francisco Bay Area

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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 18 September 2026.

Best flights from Ontario to San Francisco Bay Area
Discover carefully curated flight deals from Ontario to San Francisco Bay Area that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Direct flights from Ontario to San Francisco Bay Area
Explore direct flight options from Ontario to San Francisco Bay Area based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 September 2026.

Last-minute flights from Ontario to San Francisco Bay Area
Discover last-minute flight deals from Ontario to San Francisco Bay Area. Data last updated 18 September 2026 and is based on user searches.

One-way flights from Ontario to San Francisco Bay Area
Search for one-way flight options from Ontario to San Francisco Bay Area. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.