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

For as low as C$ 540, WestJet can have you in Region of Ontario from San Francisco Bay Area in 10h 39m. San Francisco Bay Area and Region of Ontario are separated by a distance of 3626 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

C$ 115 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from C$ 166 and C$ 167, respectively.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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

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

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

Yes. Cheapflights offers flight deals from San Francisco Bay Area to Ontario 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$ 149+ Flights from San Francisco Bay Area to Ontario

Cheap flight deals from San Francisco Bay Area to Ontario

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from San Francisco Bay Area to Ontario
Explore the most affordable flight options available from San Francisco Bay Area to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 February 2026.

Fri 29/56:05 p.m.

SFO

YYZ

1 stop9h 50m

WestJet

Thu 11/612:40 p.m.

YYZ

SFO

2 stops12h 15m

WestJet

Deal found 1/2C$ 354

Wed 4/37:15 p.m.

SFO

YYZ

1 stop21h 40m

Multiple Airlines

Wed 11/31:30 p.m.

YYZ

SFO

2 stops21h 28m

Multiple Airlines

Deal found 3/2C$ 359

Tue 10/37:32 p.m.

SFO

YYZ

2 stops21h 04m

Multiple Airlines

Thu 12/38:00 p.m.

YYZ

SFO

1 stop14h 58m

Multiple Airlines

Deal found 2/2C$ 367

Mon 16/38:09 p.m.

SFO

YYZ

2 stops22h 02m

Multiple Airlines

Mon 30/38:00 p.m.

YYZ

SFO

1 stop25h 37m

Multiple Airlines

Deal found 2/2C$ 370

Mon 16/38:09 p.m.

SFO

YYZ

2 stops22h 02m

Multiple Airlines

Thu 19/38:00 p.m.

YYZ

SFO

1 stop14h 58m

Multiple Airlines

Deal found 3/2C$ 377

Mon 9/39:24 p.m.

SFO

YYZ

2 stops29h 49m

Multiple Airlines

Thu 12/38:00 p.m.

YYZ

SFO

1 stop14h 58m

Multiple Airlines

Deal found 3/2C$ 378

Mon 20/42:01 p.m.

SFO

YYZ

1 stop13h 19m

Multiple Airlines

Thu 23/48:00 p.m.

YYZ

SFO

1 stop15h 18m

Multiple Airlines

Deal found 1/2C$ 380

Thu 28/56:00 a.m.

SFO

YYZ

2 stops12h 10m

WestJet

Sat 6/66:15 a.m.

YYZ

SFO

1 stop8h 45m

WestJet

Deal found 2/2C$ 382

Thu 4/66:05 p.m.

SFO

YYZ

1 stop8h 40m

WestJet

Fri 5/610:50 a.m.

YYZ

SFO

1 stop8h 50m

WestJet

Deal found 2/2C$ 387

Fri 13/31:00 p.m.

SFO

YKF

1 stop13h 29m

WestJet

Tue 17/36:20 a.m.

YKF

SFO

1 stop8h 50m

WestJet

Deal found 2/2C$ 403

Thu 30/41:45 p.m.

SFO

YUL

1 stop7h 50m

Multiple Airlines

Sun 3/512:15 p.m.

YUL

SFO

2 stops12h 40m

Multiple Airlines

Deal found 31/1C$ 418

Fri 17/41:00 p.m.

SFO

YKF

1 stop13h 29m

WestJet

Thu 23/46:20 a.m.

YKF

SFO

1 stop8h 50m

WestJet

Deal found 1/2C$ 423

Best flights from San Francisco Bay Area to Ontario
Discover carefully curated flight deals from San Francisco Bay Area to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 3 February 2026.

Fri 13/31:00 p.m.

SFO

YKF

1 stop13h 29m

WestJet

Tue 17/36:20 a.m.

YKF

SFO

1 stop8h 50m

WestJet

Deal found 2/2C$ 403

Mon 2/36:20 a.m.

SJC

YYZ

1 stop6h 39m

Delta

Mon 9/37:45 a.m.

YYZ

SJC

2 stops14h 56m

Delta

Deal found 2/2C$ 493

Mon 2/37:10 p.m.

SJC

YYZ

1 stop17h 25m

Alaska Airlines

Tue 10/34:45 p.m.

YYZ

SJC

1 stop20h 43m

Alaska Airlines

Deal found 2/2C$ 497

Wed 22/46:45 p.m.

SFO

YOW

1 stop16h 59m

Multiple Airlines

Tue 28/45:55 a.m.

YOW

SFO

2 stops13h 57m

Multiple Airlines

Deal found 2/2C$ 505

Sun 19/412:45 a.m.

SFO

YYZ

1 stop10h 39m

United Airlines

Mon 20/45:16 p.m.

YYZ

SFO

Nonstop5h 53m

United Airlines

Deal found 1/2C$ 540

Thu 30/41:45 p.m.

SFO

YUL

1 stop7h 50m

Porter Airlines

Sun 3/56:45 a.m.

YUL

SFO

1 stop8h 35m

Porter Airlines

Deal found 2/2C$ 580

Thu 30/48:10 a.m.

SFO

YTZ

1 stop10h 22m

Air Canada

Mon 4/58:30 p.m.

YTZ

SFO

1 stop17h 55m

Air Canada

Deal found 3/2C$ 612

Fri 17/41:00 p.m.

SFO

YKF

1 stop13h 29m

WestJet

Thu 23/46:20 a.m.

YKF

SFO

1 stop8h 50m

WestJet

Deal found 1/2C$ 423

Fri 26/67:15 a.m.

SJC

YYZ

1 stop11h 45m

Delta

Mon 6/71:30 p.m.

YYZ

SJC

1 stop12h 23m

Delta

Deal found 3/2C$ 494

Wed 20/56:00 a.m.

SFO

YKF

1 stop10h 50m

WestJet

Tue 23/66:00 a.m.

YKF

SFO

1 stop8h 54m

WestJet

Deal found 2/2C$ 459

Fri 29/56:00 a.m.

SFO

YHM

1 stop14h 13m

Multiple Airlines

Sat 6/65:45 p.m.

YHM

SFO

2 stops21h 15m

Multiple Airlines

Deal found 1/2C$ 518

Wed 11/35:05 a.m.

SFO

YYZ

1 stop6h 57m

United Airlines

Wed 11/35:55 p.m.

YYZ

SFO

Nonstop6h 00m

United Airlines

Deal found 2/2C$ 540

Tue 17/36:27 p.m.

SFO

YYZ

1 stop18h 08m

Alaska Airlines

Tue 24/34:45 p.m.

YYZ

SFO

2 stops21h 19m

Alaska Airlines

Deal found 1/2C$ 542

Mon 2/36:20 a.m.

SJC

YYZ

2 stops13h 31m

Delta

Tue 10/33:59 p.m.

YYZ

SJC

2 stops10h 59m

Delta

Deal found 3/2C$ 494

Fri 1/56:00 a.m.

SFO

YKF

1 stop10h 50m

WestJet

Mon 4/58:40 p.m.

YKF

SFO

1 stop18h 20m

WestJet

Deal found 3/2C$ 470

Wed 6/56:45 p.m.

SFO

YHM

2 stops19h 30m

Multiple Airlines

Sun 10/57:55 p.m.

YHM

SFO

1 stop19h 05m

Multiple Airlines

Deal found 1/2C$ 526

Mon 2/310:40 p.m.

SFO

YYZ

1 stop12h 34m

United Airlines

Tue 3/35:55 p.m.

YYZ

SFO

Nonstop6h 00m

United Airlines

Deal found 1/2C$ 540

Thu 26/26:20 a.m.

SJC

YYZ

1 stop6h 39m

Delta

Sat 28/212:20 p.m.

YYZ

SJC

1 stop11h 58m

Delta

Deal found 3/2C$ 497

Tue 21/42:39 p.m.

SFO

YYZ

2 stops22h 06m

Alaska Airlines

Sat 25/44:55 p.m.

YYZ

SFO

2 stops20h 03m

Alaska Airlines

Deal found 2/2C$ 550

Thu 23/48:10 a.m.

SFO

YTZ

1 stop10h 22m

Air Canada

Tue 28/412:30 p.m.

YTZ

SFO

1 stop11h 51m

Air Canada

Deal found 2/2C$ 613

Tue 28/46:00 a.m.

SFO

YHM

1 stop8h 15m

WestJet

Mon 4/56:10 p.m.

YHM

SFO

1 stop20h 50m

WestJet

Deal found 2/2C$ 474

Mon 9/39:30 p.m.

SFO

YYZ

1 stop13h 44m

United Airlines

Tue 10/35:55 p.m.

YYZ

SFO

Nonstop6h 00m

United Airlines

Deal found 2/2C$ 540

Wed 25/210:35 p.m.

SJC

YYZ

1 stop9h 32m

Delta

Sat 28/212:20 p.m.

YYZ

SJC

1 stop11h 58m

Delta

Deal found 3/2C$ 497

Wed 27/56:00 a.m.

SFO

YOW

1 stop8h 20m

Multiple Airlines

Sat 6/67:00 a.m.

YOW

SFO

1 stop8h 20m

Multiple Airlines

Deal found 2/2C$ 553

Wed 1/48:10 p.m.

OAK

YYZ

2 stops16h 35m

Alaska Airlines

Tue 7/44:55 p.m.

YYZ

OAK

1 stop9h 48m

Alaska Airlines

Deal found 3/2C$ 561

Fri 1/56:00 a.m.

SFO

YHM

1 stop8h 15m

WestJet

Mon 4/56:10 p.m.

YHM

SFO

1 stop20h 50m

WestJet

Deal found 3/2C$ 474

Sun 17/57:10 a.m.

SJC

YYZ

1 stop11h 45m

Delta

Sun 24/51:34 p.m.

YYZ

SJC

1 stop12h 21m

Delta

Deal found 3/2C$ 497

Fri 29/56:05 p.m.

SFO

YOW

1 stop8h 35m

Multiple Airlines

Sat 6/67:00 a.m.

YOW

SFO

1 stop8h 20m

Multiple Airlines

Deal found 2/2C$ 553

Sun 8/38:53 a.m.

SFO

YYZ

Nonstop4h 59m

United Airlines

Sun 22/36:30 a.m.

YYZ

SFO

Nonstop6h 10m

United Airlines

Deal found 2/2C$ 560

Thu 23/42:09 p.m.

OAK

YYZ

1 stop22h 36m

Alaska Airlines

Tue 28/44:55 p.m.

YYZ

OAK

1 stop8h 37m

Alaska Airlines

Deal found 2/2C$ 570

Find flight deals from San Francisco Bay Area to Ontario

Round-trip from	C$ 354
One-way from	C$ 149
Popular in	December
Cheapest in	February
Average price	C$ 490

Porter Airlines
3/3-9/4
3 total stops
31h 18m total
San Francisco Bay Area to Ontario

Search Deals

WestJet
27/5
1 total stop
8h 15m total
San Francisco Bay Area to Ontario

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (C$ 109 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (C$ 34 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in February 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Fri 13/3

1:00 p.m.-5:29 a.m.

1 stop13h 29m

Toronto Region of Waterloo Intl

Tue 17/3

6:20 a.m.-12:10 p.m.

1 stop8h 50m

C$ 403

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Fri 17/4

1:00 p.m.-5:29 a.m.

1 stop13h 29m

Toronto Region of Waterloo Intl

Thu 23/4

6:20 a.m.-12:10 p.m.

1 stop8h 50m

C$ 423

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Wed 20/5

6:00 a.m.-7:50 p.m.

1 stop10h 50m

Toronto Region of Waterloo Intl

Tue 23/6

6:00 a.m.-11:54 a.m.

1 stop8h 54m

C$ 459

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Fri 1/5

6:00 a.m.-7:50 p.m.

1 stop10h 50m

Toronto Region of Waterloo Intl

Mon 4/5

8:40 p.m.-12:00 p.m.

1 stop18h 20m

C$ 470

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Tue 28/4

6:00 a.m.-5:15 p.m.

1 stop8h 15m

Hamilton

Mon 4/5

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

1 stop20h 50m

C$ 474

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Fri 1/5

6:00 a.m.-5:15 p.m.

1 stop8h 15m

Hamilton

Mon 4/5

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

1 stop20h 50m

C$ 474

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 2/3

6:20 a.m.-3:59 p.m.

1 stop6h 39m

Toronto Pearson Intl

Mon 9/3

7:45 a.m.-7:41 p.m.

2 stops14h 56m

C$ 493

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Fri 26/6

7:15 a.m.-10:00 p.m.

1 stop11h 45m

Toronto Pearson Intl

Mon 6/7

1:30 p.m.-10:53 p.m.

1 stop12h 23m

C$ 494

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 2/3

6:20 a.m.-10:51 p.m.

2 stops13h 31m

Toronto Pearson Intl

Tue 10/3

3:59 p.m.-11:58 p.m.

2 stops10h 59m

C$ 494

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 2/3

7:10 p.m.-3:35 p.m.

1 stop17h 25m

Toronto Pearson Intl

Tue 10/3

4:45 p.m.-10:28 a.m.

1 stop20h 43m

C$ 497

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 60 results

...

Best time to book a flight from San Francisco Bay Area to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from San Francisco Bay Area with our price prediction graph.

SFO-YYZ

SFO-YUL

SFO-YKF

SJC-YYZ

SFO-YHM

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 San Francisco Bay Area to Ontario

zzXIH-CAON

SFO-YYZ

SFO-YUL

SFO-YKF

SJC-YYZ

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

Currently, February is the cheapest month in which you can book a flight from San Francisco Bay Area to Region of Ontario (average of C$ 173). Flying from San Francisco Bay Area to Region of Ontario in August is currently the most expensive (average of C$ 277). 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 XIH to ON?

It’s typically best to fly out from San Francisco Bay Area to Region of Ontario in the evening. Doing so could potentially save you 22% on the flight price compared to flying at noon, which is usually more expensive.

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

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

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

The most flights from zzXIH to CAON are scheduled on a Monday (18 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (7 on average).

Reviews of airlines servicing Ontario

See what other customers who have flown with Porter Airlines,Air Transat, andUnited Airlines from San Francisco Bay Area to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Porter Airlines

7.9

Good

412 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Porter Airlines

7.9

Good

412 reviews

Porter Airlines

7.9

Good

412 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Air Transat

7.7

Good

502 reviews

Porter Airlines

7.9

Good

412 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

United Airlines

7.4

Good

9,236 reviews

Porter Airlines

7.9

Good

412 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

WestJet

7.2

Good

3,255 reviews

Porter Airlines

7.9

Good

412 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Air Canada

7.1

Good

10,684 reviews

Porter Airlines

7.9

Good

412 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Related info for your journey

How long is the flight from San Francisco Bay Area to Region of Ontario?
For as low as C$ 540, WestJet can have you in Region of Ontario from San Francisco Bay Area in 10h 39m. San Francisco Bay Area and Region of Ontario are separated by a distance of 3626 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines to fly from San Francisco Bay Area to Region of Ontario one-way?
C$ 115 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from C$ 166 and C$ 167, respectively.
Can I find deals for flights from San Francisco Bay Area to Ontario that include hotel bookings?
Yes. In addition to deals on San Francisco Bay Area to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Francisco Bay Area to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco Bay Area to Ontario.
Can I find deals for business class flights from San Francisco Bay Area to Ontario?
Yes. Cheapflights offers flight deals from San Francisco Bay Area to Ontario 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 San Francisco Bay Area to Region of Ontario?
Currently, February is the cheapest month in which you can book a flight from San Francisco Bay Area to Region of Ontario (average of C$ 173). Flying from San Francisco Bay Area to Region of Ontario in August is currently the most expensive (average of C$ 277). 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 6 airlines flying from San Francisco Bay Area to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Porter Airlines	CheapestC$ 194	AverageC$ 524	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
Delta	CheapestC$ 221	AverageC$ 319	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Air Canada	CheapestC$ 240	AverageC$ 664	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
WestJet	CheapestC$ 286	AverageC$ 439	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
United Airlines	CheapestC$ 305	AverageC$ 800	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Transat	CheapestC$ 499	AverageC$ 878	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Francisco Bay Area to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from San Francisco Bay Area.

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

Certainly. Search results for flights to Ontario from San Francisco Bay Area shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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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.

Cheap flights from San Francisco Bay Area to Ontario from C$ 149

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 27/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from San Francisco Bay Area to Ontario

Cheapest flights from San Francisco Bay Area to OntarioExplore the most affordable flight options available from San Francisco Bay Area to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 February 2026.

Explore the most affordable flight options available from San Francisco Bay Area to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 February 2026.

Best flights from San Francisco Bay Area to OntarioDiscover carefully curated flight deals from San Francisco Bay Area to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 3 February 2026.

Discover carefully curated flight deals from San Francisco Bay Area to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 3 February 2026.

Direct flights from San Francisco Bay Area to OntarioExplore direct flight options from San Francisco Bay Area to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 February 2026.

Explore direct flight options from San Francisco Bay Area to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 February 2026.

Last-minute flights from San Francisco Bay Area to OntarioDiscover last-minute flight deals from San Francisco Bay Area to Ontario. Data last updated 3 February 2026 and is based on user searches.

Discover last-minute flight deals from San Francisco Bay Area to Ontario. Data last updated 3 February 2026 and is based on user searches.

One-way flights from San Francisco Bay Area to OntarioSearch for one-way flight options from San Francisco Bay Area to Ontario. Find affordable one-way fares based on user searches. Data last updated 3 February 2026.

Search for one-way flight options from San Francisco Bay Area to Ontario. Find affordable one-way fares based on user searches. Data last updated 3 February 2026.

Find flight deals from San Francisco Bay Area to Ontario

Keep the following information in mind while searching for San Francisco Bay Area to Ontario flight deals. Data was last updated 3 February 2026.

Round-trip from

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Find hourly flight availability from San Francisco Bay Area to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 February 2026.

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

Use this chart to determine the cheapest time to fly round-trip from San Francisco Bay Area to Ontario. Price data was last updated on 31 January 2026.

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

Reviews of airlines servicing Ontario

See what other customers who have flown with Porter Airlines,Air Transat, andUnited Airlines from San Francisco Bay Area to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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Alternative routes for San Francisco Bay Area to Ontario

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San Francisco Bay Area and Ontario flights

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San Francisco Bay Area to Ontario flights

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Top 6 airlines flying from San Francisco Bay Area to Ontario

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Cheapest flights from San Francisco Bay Area to Ontario
Explore the most affordable flight options available from San Francisco Bay Area to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 February 2026.

Best flights from San Francisco Bay Area to Ontario
Discover carefully curated flight deals from San Francisco Bay Area to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 3 February 2026.

Direct flights from San Francisco Bay Area to Ontario
Explore direct flight options from San Francisco Bay Area to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 February 2026.

Last-minute flights from San Francisco Bay Area to Ontario
Discover last-minute flight deals from San Francisco Bay Area to Ontario. Data last updated 3 February 2026 and is based on user searches.

One-way flights from San Francisco Bay Area to Ontario
Search for one-way flight options from San Francisco Bay Area to Ontario. Find affordable one-way fares based on user searches. Data last updated 3 February 2026.