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

For as low as C$ 426, WestJet can have you in Region of Ontario from San Francisco Bay Area in 4h 57m. 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$ 116 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$ 168 and C$ 170, 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$ 124+ 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 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 18 December 2025.

Wed 17/126:00 a.m.SFO - YYZ

2 stops38h 11mMultiple Airlines

Wed 14/19:50 a.m.YYZ - SFO

Nonstop5h 53mMultiple Airlines

Deal found 15/12C$ 551

Wed 17/126:00 a.m.SFO - YYZ

2 stops38h 11mMultiple Airlines

Tue 13/19:50 a.m.YYZ - SFO

Nonstop5h 53mMultiple Airlines

Deal found 15/12C$ 584

Wed 17/1210:10 p.m.SFO - YYZ

2 stops29h 37mMultiple Airlines

Thu 15/17:55 p.m.YYZ - SFO

1 stop14h 53mMultiple Airlines

Deal found 15/12C$ 592

Wed 24/125:55 a.m.SJC - YYZ

2 stops15h 04mDelta

Wed 7/112:21 p.m.YYZ - SJC

1 stop11h 59mDelta

Deal found 16/12C$ 601

Wed 24/125:55 a.m.SJC - YYZ

2 stops15h 04mDelta

Tue 6/17:50 a.m.YYZ - SJC

2 stops16h 38mDelta

Deal found 16/12C$ 608

Tue 30/121:40 p.m.SFO - YYZ

Nonstop4h 59mPorter Airlines

Sun 11/19:50 a.m.YYZ - SFO

Nonstop5h 53mPorter Airlines

Deal found 16/12C$ 631

Wed 31/121:40 p.m.SFO - YYZ

Nonstop4h 59mMultiple Airlines

Thu 8/11:30 p.m.YYZ - SFO

3 stops35h 55mMultiple Airlines

Deal found 16/12C$ 639

Tue 30/121:40 p.m.SFO - YYZ

Nonstop4h 59mMultiple Airlines

Sun 11/18:00 p.m.YYZ - SFO

2 stops29h 25mMultiple Airlines

Deal found 16/12C$ 646

Mon 29/126:20 a.m.SJC - YYZ

1 stop6h 39mDelta

Wed 7/112:21 p.m.YYZ - SJC

1 stop11h 59mDelta

Deal found 16/12C$ 654

Wed 31/121:40 p.m.SFO - YYZ

Nonstop4h 59mMultiple Airlines

Sun 11/11:30 p.m.YYZ - SFO

2 stops23h 16mMultiple Airlines

Deal found 16/12C$ 656

Tue 30/121:40 p.m.SFO - YYZ

Nonstop4h 59mMultiple Airlines

Wed 7/16:45 p.m.YYZ - SFO

3 stops27h 34mMultiple Airlines

Deal found 17/12C$ 657

Tue 30/121:40 p.m.SFO - YYZ

Nonstop4h 59mMultiple Airlines

Fri 9/13:40 p.m.YYZ - SFO

2 stops20h 50mMultiple Airlines

Deal found 16/12C$ 664

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 18 December 2025.

Fri 1/512:50 p.m.SFO - YHM

1 stop8h 50mWestJet

Mon 4/56:00 a.m.YHM - SFO

1 stop8h 54mWestJet

Deal found 16/12C$ 316

Thu 30/412:50 p.m.SFO - YOW

2 stops13h 38mMultiple Airlines

Tue 12/57:00 a.m.YOW - SFO

1 stop8h 23mMultiple Airlines

Deal found 16/12C$ 351

Mon 12/11:45 p.m.SFO - YYZ

Nonstop4h 57mPorter Airlines

Sun 18/19:50 a.m.YYZ - SFO

Nonstop5h 53mPorter Airlines

Deal found 16/12C$ 426

Tue 13/13:36 p.m.SJC - YYZ

1 stop20h 59mAlaska Airlines

Tue 20/14:45 p.m.YYZ - SJC

1 stop24h 57mAlaska Airlines

Deal found 15/12C$ 464

Thu 22/18:25 a.m.SFO - YTZ

1 stop10h 10mAir Canada

Tue 27/13:30 p.m.YTZ - SFO

1 stop8h 52mAir Canada

Deal found 16/12C$ 557

Sat 31/14:00 p.m.SJC - YOW

2 stops19h 27mUnited Airlines

Sat 7/212:00 p.m.YOW - SJC

2 stops11h 56mUnited Airlines

Deal found 17/12C$ 649

Thu 15/11:00 p.m.SFO - YHM

1 stop21h 22mWestJet

Tue 20/15:45 a.m.YHM - SFO

1 stop9h 27mWestJet

Deal found 17/12C$ 332

Tue 19/512:50 p.m.SFO - YUL

1 stop8h 52mMultiple Airlines

Tue 26/56:45 a.m.YUL - SFO

1 stop8h 38mMultiple Airlines

Deal found 17/12C$ 369

Sat 31/110:45 p.m.SJC - YUL

2 stops16h 52mDelta

Sat 7/27:00 a.m.YUL - SJC

2 stops13h 40mDelta

Deal found 17/12C$ 743

Wed 6/512:50 p.m.SFO - YHM

1 stop8h 50mWestJet

Wed 3/66:00 a.m.YHM - SFO

1 stop8h 54mWestJet

Deal found 16/12C$ 342

Wed 6/512:50 p.m.SFO - YHM

1 stop8h 50mWestJet

Sat 9/56:00 a.m.YHM - SFO

1 stop8h 54mWestJet

Deal found 17/12C$ 344

Tue 27/11:00 p.m.SFO - YOW

2 stops22h 01mMultiple Airlines

Fri 30/16:00 a.m.YOW - SFO

1 stop9h 12mMultiple Airlines

Deal found 17/12C$ 411

Thu 28/512:50 p.m.SFO - YHM

1 stop8h 50mWestJet

Mon 1/66:00 a.m.YHM - SFO

1 stop8h 54mWestJet

Deal found 16/12C$ 344

Fri 30/19:00 a.m.SFO - YYZ

1 stop27h 35mAlaska Airlines

Tue 24/24:45 p.m.YYZ - SFO

1 stop20h 52mAlaska Airlines

Deal found 15/12C$ 479

Thu 26/27:19 p.m.SJC - YUL

2 stops16h 46mAmerican Airlines

Sun 1/37:30 a.m.YUL - SJC

2 stops17h 56mAmerican Airlines

Deal found 15/12C$ 1,000

Thu 5/210:15 a.m.SFO - YOW

1 stop25h 30mMultiple Airlines

Sun 8/25:40 a.m.YOW - SFO

1 stop10h 05mMultiple Airlines

Deal found 15/12C$ 422

Mon 2/27:00 a.m.SFO - YYZ

1 stop29h 35mAlaska Airlines

Wed 25/24:45 p.m.YYZ - SFO

1 stop9h 11mAlaska Airlines

Deal found 15/12C$ 479

Thu 22/11:00 p.m.SFO - YHM

1 stop21h 22mWestJet

Tue 27/15:45 a.m.YHM - SFO

1 stop9h 27mWestJet

Deal found 16/12C$ 364

Mon 19/18:25 a.m.SFO - YTZ

1 stop8h 30mAir Canada

Thu 22/110:25 a.m.YTZ - SFO

2 stops13h 57mAir Canada

Deal found 15/12C$ 564

Fri 30/12:30 p.m.SFO - YYZ

1 stop22h 05mAlaska Airlines

Fri 6/24:45 p.m.YYZ - SFO

1 stop9h 18mAlaska Airlines

Deal found 16/12C$ 479

Thu 5/21:00 p.m.SFO - YHM

1 stop21h 21mWestJet

Mon 9/26:10 p.m.YHM - SFO

1 stop21h 00mWestJet

Deal found 17/12C$ 371

Sun 1/28:25 a.m.SFO - YTZ

1 stop10h 10mAir Canada

Mon 9/212:30 p.m.YTZ - SFO

1 stop11h 52mAir Canada

Deal found 17/12C$ 572

Fri 6/23:36 p.m.SJC - YYZ

1 stop20h 59mAlaska Airlines

Wed 11/24:45 p.m.YYZ - SJC

1 stop19h 37mAlaska Airlines

Deal found 17/12C$ 485

Thu 8/11:00 p.m.SFO - YUL

1 stop15h 05mMultiple Airlines

Wed 14/16:45 a.m.YUL - SFO

1 stop8h 58mMultiple Airlines

Deal found 16/12C$ 485

Fri 5/612:50 p.m.SFO - YHM

1 stop8h 50mWestJet

Sun 7/66:00 a.m.YHM - SFO

2 stops10h 57mWestJet

Deal found 17/12C$ 373

Sat 31/18:25 a.m.SFO - YTZ

1 stop10h 10mAir Canada

Sat 7/212:30 p.m.YTZ - SFO

1 stop11h 52mAir Canada

Deal found 17/12C$ 587

Sun 1/29:00 a.m.SFO - YYZ

1 stop27h 35mAlaska Airlines

Tue 24/24:45 p.m.YYZ - SFO

1 stop24h 17mAlaska Airlines

Deal found 15/12C$ 490

Wed 29/412:50 p.m.SFO - YHM

1 stop8h 50mWestJet

Sun 3/56:00 a.m.YHM - SFO

1 stop8h 54mWestJet

Deal found 15/12C$ 378

Fri 10/41:00 p.m.SFO - YOW

2 stops32h 39mMultiple Airlines

Sun 12/46:45 a.m.YOW - SFO

1 stop9h 00mMultiple Airlines

Deal found 17/12C$ 533

Sat 31/14:46 p.m.SFO - YYZ

1 stop19h 49mAlaska Airlines

Wed 25/24:45 p.m.YYZ - SFO

1 stop9h 11mAlaska Airlines

Deal found 15/12C$ 490

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 18 December 2025.

Wed 29/41:45 p.m.SFO - YYZ

Nonstop4h 57mPorter Airlines

Wed 6/59:45 a.m.YYZ - SFO

Nonstop5h 38mPorter Airlines

Deal found 17/12C$ 408

Wed 18/21:45 p.m.SFO - YYZ

Nonstop4h 57mMultiple Airlines

Tue 24/29:50 a.m.YYZ - SFO

Nonstop5h 55mMultiple Airlines

Deal found 16/12C$ 409

Tue 17/21:45 p.m.SFO - YYZ

Nonstop4h 57mPorter Airlines

Fri 20/29:50 a.m.YYZ - SFO

Nonstop5h 55mPorter Airlines

Deal found 17/12C$ 411

Wed 8/41:45 p.m.SFO - YYZ

Nonstop4h 57mPorter Airlines

Sun 12/49:50 a.m.YYZ - SFO

Nonstop5h 55mPorter Airlines

Deal found 17/12C$ 412

Tue 21/41:45 p.m.SFO - YYZ

Nonstop4h 57mPorter Airlines

Sat 25/49:50 a.m.YYZ - SFO

Nonstop5h 55mPorter Airlines

Deal found 16/12C$ 413

Sat 14/21:45 p.m.SFO - YYZ

Nonstop4h 57mPorter Airlines

Sat 21/29:50 a.m.YYZ - SFO

Nonstop5h 55mPorter Airlines

Deal found 17/12C$ 416

Wed 4/21:45 p.m.SFO - YYZ

Nonstop4h 57mMultiple Airlines

Mon 9/29:50 a.m.YYZ - SFO

Nonstop5h 55mMultiple Airlines

Deal found 17/12C$ 417

Sat 10/11:45 p.m.SFO - YYZ

Nonstop4h 57mPorter Airlines

Sat 11/49:50 a.m.YYZ - SFO

Nonstop5h 55mPorter Airlines

Deal found 15/12C$ 419

Mon 9/31:45 p.m.SFO - YYZ

Nonstop4h 57mPorter Airlines

Thu 19/39:50 a.m.YYZ - SFO

Nonstop5h 55mPorter Airlines

Deal found 17/12C$ 420

Wed 29/41:45 p.m.SFO - YYZ

Nonstop4h 57mPorter Airlines

Thu 30/49:50 a.m.YYZ - SFO

Nonstop5h 55mPorter Airlines

Deal found 17/12C$ 424

Sat 10/11:45 p.m.SFO - YYZ

Nonstop4h 57mPorter Airlines

Sat 31/19:50 a.m.YYZ - SFO

Nonstop5h 53mPorter Airlines

Deal found 16/12C$ 426

Thu 8/18:25 a.m.SFO - YUL

Nonstop5h 24mAir Canada

Wed 14/15:50 p.m.YUL - SFO

Nonstop6h 32mAir Canada

Deal found 16/12C$ 610

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 18 December 2025 and is based on user searches.

Fri 9/11:00 p.m.SFO - YUL

1 stop15h 05mWestJet

Wed 14/17:30 p.m.YUL - SFO

1 stop19h 42mWestJet

Deal found 17/12C$ 401

Tue 13/11:00 p.m.SFO - YHM

1 stop25h 17mWestJet

Tue 20/15:45 a.m.YHM - SFO

1 stop9h 27mWestJet

Deal found 16/12C$ 376

Thu 15/11:00 p.m.SFO - YHM

1 stop21h 22mWestJet

Tue 20/15:45 a.m.YHM - SFO

1 stop9h 27mWestJet

Deal found 17/12C$ 332

Thu 15/11:00 p.m.SFO - YHM

1 stop21h 22mWestJet

Thu 22/16:10 p.m.YHM - SFO

1 stop21h 02mWestJet

Deal found 15/12C$ 386

Thu 15/11:45 p.m.SFO - YUL

1 stop7h 50mPorter Airlines

Thu 22/16:45 a.m.YUL - SFO

1 stop8h 58mPorter Airlines

Deal found 17/12C$ 390

Thu 15/11:00 p.m.SFO - YHM

1 stop21h 22mWestJet

Mon 19/16:10 p.m.YHM - SFO

1 stop21h 02mWestJet

Deal found 17/12C$ 394

Tue 20/11:45 p.m.SFO - YOW

1 stop7h 58mMultiple Airlines

Thu 29/16:00 a.m.YOW - SFO

1 stop9h 12mMultiple Airlines

Deal found 16/12C$ 375

Wed 21/12:08 p.m.SFO - YUL

2 stops13h 57mMultiple Airlines

Wed 28/17:30 p.m.YUL - SFO

1 stop19h 42mMultiple Airlines

Deal found 16/12C$ 397

Thu 22/11:00 p.m.SFO - YHM

1 stop21h 22mWestJet

Tue 27/15:45 a.m.YHM - SFO

1 stop9h 27mWestJet

Deal found 16/12C$ 364

Sat 24/110:15 a.m.SFO - YUL

1 stop27h 12mMultiple Airlines

Mon 2/27:30 p.m.YUL - SFO

1 stop19h 40mMultiple Airlines

Deal found 16/12C$ 398

Wed 28/12:08 p.m.SFO - YUL

2 stops13h 57mMultiple Airlines

Mon 2/27:30 p.m.YUL - SFO

1 stop19h 40mMultiple Airlines

Deal found 17/12C$ 394

Thu 29/11:45 p.m.SFO - YUL

1 stop7h 50mPorter Airlines

Sun 1/26:45 a.m.YUL - SFO

1 stop9h 00mPorter Airlines

Deal found 17/12C$ 395

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 18 December 2025.

Thu 29/110:15 a.m.SFO - YUL

1 stop27h 12mMultiple Airlines

Deal found 15/12C$ 124

Mon 1/612:50 p.m.SFO - YHM

1 stop8h 50mWestJet

Deal found 17/12C$ 132

Sun 31/512:50 p.m.SFO - YHM

1 stop8h 50mWestJet

Deal found 17/12C$ 146

Sun 31/512:50 p.m.SFO - YUL

1 stop8h 52mWestJet

Deal found 18/12C$ 149

Sun 1/38:34 p.m.SFO - YUL

2 stops31h 31mMultiple Airlines

Deal found 17/12C$ 152

Thu 22/11:00 p.m.SFO - YHM

1 stop21h 22mWestJet

Deal found 17/12C$ 153

Tue 19/512:50 p.m.SFO - YHM

1 stop8h 50mWestJet

Deal found 16/12C$ 154

Sun 1/210:15 a.m.SFO - YUL

1 stop27h 12mMultiple Airlines

Deal found 15/12C$ 154

Mon 26/11:49 p.m.SFO - YUL

2 stops14h 16mMultiple Airlines

Deal found 17/12C$ 156

Sun 8/210:15 a.m.SFO - YUL

2 stops17h 50mMultiple Airlines

Deal found 15/12C$ 157

Wed 14/12:24 p.m.SFO - YUL

2 stops13h 41mMultiple Airlines

Deal found 16/12C$ 165

Thu 8/111:27 a.m.SJC - YYZ

3 stops33h 12mMultiple Airlines

Deal found 16/12C$ 167

Find flight deals from San Francisco Bay Area to Ontario

Round-trip from	C$ 316
One-way from	C$ 124
Popular in	December
Cheapest in	February
Average price	C$ 885

WestJet
1/5-4/5
2 total stops
17h 44m total
San Francisco Bay Area to Ontario

Search Deals

29/1
1 total stop
27h 12m total
San Francisco Bay Area to Ontario

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (C$ 126 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (C$ 37 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

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 FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Fri 1/5

12:50 p.m.-12:40 a.m.

1 stop8h 50m

Hamilton

Mon 4/5

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

1 stop8h 54m

C$ 316

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Thu 15/1

1:00 p.m.-1:22 p.m.

1 stop21h 22m

Hamilton

Tue 20/1

5:45 a.m.-12:12 p.m.

1 stop9h 27m

C$ 332

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Wed 6/5

12:50 p.m.-12:40 a.m.

1 stop8h 50m

Hamilton

Wed 3/6

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

1 stop8h 54m

C$ 342

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Wed 6/5

12:50 p.m.-12:40 a.m.

1 stop8h 50m

Hamilton

Sat 9/5

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

1 stop8h 54m

C$ 344

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Thu 28/5

12:50 p.m.-12:40 a.m.

1 stop8h 50m

Hamilton

Mon 1/6

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

1 stop8h 54m

C$ 344

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Thu 30/4

12:50 p.m.-5:28 a.m.

2 stops13h 38m

Ottawa

Tue 12/5

7:00 a.m.-12:23 p.m.

1 stop8h 23m

C$ 351

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Thu 22/1

1:00 p.m.-1:22 p.m.

1 stop21h 22m

Hamilton

Tue 27/1

5:45 a.m.-12:12 p.m.

1 stop9h 27m

C$ 364

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Tue 19/5

12:50 p.m.-12:42 a.m.

1 stop8h 52m

Montreal Pierre Elliott Trudeau Intl

Tue 26/5

6:45 a.m.-12:23 p.m.

1 stop8h 38m

C$ 369

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Thu 5/2

1:00 p.m.-1:21 p.m.

1 stop21h 21m

Hamilton

Mon 9/2

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

1 stop21h 00m

C$ 371

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Fri 5/6

12:50 p.m.-12:40 a.m.

1 stop8h 50m

Hamilton

Sun 7/6

6:00 a.m.-1:57 p.m.

2 stops10h 57m

C$ 373

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/12

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.

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

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$ 175). Flying from San Francisco Bay Area to Region of Ontario in August is currently the most expensive (average of C$ 278). 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 afternoon. Doing so could potentially save you 52% on the flight price compared to flying in the evening, 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 (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 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

8.0

Very good

399 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

8.0

Very good

399 reviews

Porter Airlines

8.0

Very good

399 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

7.8

Good

483 reviews

Porter Airlines

8.0

Very good

399 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

9,093 reviews

Porter Airlines

8.0

Very good

399 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

3,204 reviews

Porter Airlines

8.0

Very good

399 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

10,534 reviews

Porter Airlines

8.0

Very good

399 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$ 426, WestJet can have you in Region of Ontario from San Francisco Bay Area in 4h 57m. 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$ 116 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$ 168 and C$ 170, 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$ 175). Flying from San Francisco Bay Area to Region of Ontario in August is currently the most expensive (average of C$ 278). 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.

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San Francisco Bay Area to Ontario flights

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Top 5 airlines flying from San Francisco Bay Area to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Porter Airlines	CheapestC$ 196	AverageC$ 532	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
Air Canada	CheapestC$ 257	AverageC$ 689	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
WestJet	CheapestC$ 288	AverageC$ 443	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
United Airlines	CheapestC$ 491	AverageC$ 854	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Transat	CheapestC$ 503	AverageC$ 827	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights

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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.

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Cheap flights from San Francisco Bay Area to Ontario from C$ 124

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 29/1. 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 18 December 2025.

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 18 December 2025.

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 18 December 2025.

Round-trip from

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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.

Cheapflights Insights

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

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

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

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 18 December 2025.

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 16 December 2024.

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

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

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

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

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

How can I 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?

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

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Alternative routes for San Francisco Bay Area to Ontario

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

Top 5 airlines flying from San Francisco Bay Area to Ontario

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

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

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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 18 December 2025.