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Cheap flights from San Francisco Bay Area to Ontario from C$ 148

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 28/4. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YYZ
9 Apr — 16 Apr1
1 adult

Cheap 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 4 April 2025.

Round-trip from

C$ 304

One-way from

C$ 148

Popular in

December

Cheapest in

February

Average price

C$ 598
30/4-7/5
  • 30/4-7/5
  • 3 total stops
  • 34h 24m total
  • San Francisco Bay Area to Ontario
28/4
  • 28/4
  • 3 total stops
  • 31h 18m total
  • San Francisco Bay Area to Ontario
Highest demand for flights based on searches. 6% potential increase in price (C$ 65 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease (C$ 28 potential savings vs. average RT price).
Average for round-trip flights in April 2025

Find flight deals from San Francisco Bay Area to Ontario

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 4 April 2025.

Wed 30/41:45 p.m.SFO - YYZ
1 stop13h 10mMultiple Airlines
Wed 7/51:30 p.m.YYZ - SFO
2 stops21h 14mMultiple Airlines
Deal found 3/4C$ 304
Thu 1/57:46 a.m.OAK - YYZ
1 stop13h 26mMultiple Airlines
Wed 7/51:30 p.m.YYZ - OAK
2 stops24h 26mMultiple Airlines
Deal found 3/4C$ 312
Wed 30/42:04 p.m.SJC - YYZ
1 stop12h 51mMultiple Airlines
Tue 20/51:50 p.m.YYZ - SJC
1 stop12h 39mMultiple Airlines
Deal found 3/4C$ 325
Thu 1/510:15 a.m.SFO - YKF
1 stop17h 55mFlair Airlines
Thu 8/58:25 p.m.YKF - SFO
1 stop16h 05mFlair Airlines
Deal found 3/4C$ 331
Thu 17/77:30 a.m.SFO - YKF
1 stop8h 26mWestJet
Mon 21/76:00 a.m.YKF - SFO
1 stop9h 05mWestJet
Deal found 4/4C$ 336
Thu 1/510:15 a.m.SFO - YKF
1 stop17h 55mMultiple Airlines
Wed 7/56:00 a.m.YKF - SFO
1 stop9h 05mMultiple Airlines
Deal found 3/4C$ 353
Sun 6/77:30 a.m.SFO - YYZ
2 stops14h 03mWestJet
Thu 7/810:00 a.m.YYZ - SFO
1 stop10h 15mWestJet
Deal found 3/4C$ 366
Fri 18/712:50 p.m.SFO - YHM
1 stop8h 51mWestJet
Tue 22/76:00 a.m.YHM - SFO
1 stop9h 05mWestJet
Deal found 3/4C$ 368
Wed 7/510:15 a.m.SFO - YTZ
2 stops30h 12mMultiple Airlines
Sat 10/54:40 p.m.YTZ - SFO
2 stops19h 50mMultiple Airlines
Deal found 3/4C$ 379
Sun 18/58:15 a.m.SFO - YUL
Nonstop5h 40mAir Canada
Sun 25/58:10 a.m.YUL - SFO
Nonstop6h 25mAir Canada
Deal found 3/4C$ 383
Wed 2/711:19 a.m.SFO - YOW
2 stops16h 26mMultiple Airlines
Thu 17/76:00 a.m.YOW - SFO
1 stop9h 05mMultiple Airlines
Deal found 2/4C$ 384
Thu 1/51:30 p.m.SFO - YUL
1 stop8h 07mMultiple Airlines
Wed 7/57:30 a.m.YUL - SFO
1 stop11h 05mMultiple Airlines
Deal found 3/4C$ 389

Cheapflights Fare Finder

Customize your flight search to find flights from San Francisco Bay Area to Ontario 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 4 April 2025.
Use the filters below to find and compare flights from San Francisco Bay Area to Ontario that are best for you.

Fly from

San Francisco Bay Area

Fly to

Ontario

Route

Depart

Return

Price

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Wed 30/4

1:45 p.m.-5:55 a.m.

1 stop13h 10m

Toronto Pearson Intl

Wed 7/5

1:30 p.m.-7:44 a.m.

2 stops21h 14m

C$ 304

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Thu 1/5

7:46 a.m.-12:12 a.m.

1 stop13h 26m

Toronto Pearson Intl

Wed 7/5

1:30 p.m.-10:56 a.m.

2 stops24h 26m

C$ 312

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 30/4

2:04 p.m.-5:55 a.m.

1 stop12h 51m

Toronto Pearson Intl

Tue 20/5

1:50 p.m.-11:29 p.m.

1 stop12h 39m

C$ 325

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Thu 1/5

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

1 stop17h 55m

Toronto Region of Waterloo Intl

Thu 8/5

8:25 p.m.-9:30 a.m.

1 stop16h 05m

C$ 331

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Thu 17/7

7:30 a.m.-6:56 p.m.

1 stop8h 26m

Toronto Region of Waterloo Intl

Mon 21/7

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

1 stop9h 05m

C$ 336

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Thu 1/5

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

1 stop17h 55m

Toronto Region of Waterloo Intl

Wed 7/5

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

1 stop9h 05m

C$ 353

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Sun 6/7

7:30 a.m.-12:33 a.m.

2 stops14h 03m

Toronto Pearson Intl

Thu 7/8

10:00 a.m.-5:15 p.m.

1 stop10h 15m

C$ 366

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Fri 18/7

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

1 stop8h 51m

Hamilton

Tue 22/7

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

1 stop9h 05m

C$ 368

San FranciscoToronto

SFO - YTZ

SFOYTZ

San Francisco

Wed 7/5

10:15 a.m.-7:27 p.m.

2 stops30h 12m

Toronto Island

Sat 10/5

4:40 p.m.-9:30 a.m.

2 stops19h 50m

C$ 379

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Sun 18/5

8:15 a.m.-4:55 p.m.

Nonstop5h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 25/5

8:10 a.m.-11:35 a.m.

Nonstop6h 25m

C$ 383

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/4

Showing 1-10 of 60 results
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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.
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, January is the cheapest month in which you can book a flight from San Francisco Bay Area to Region of Ontario (average of C$ 167). Flying from San Francisco Bay Area to Region of Ontario in July is currently the most expensive (average of C$ 258). 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?

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 4 April 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Francisco Bay Area to Region of Ontario as you normally would.

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

Explore weekly flight availability from San Francisco Bay Area to Ontario. 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 4 April 2025.

The most flights from zzXIH to CAON are scheduled on a Wednesday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

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.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 4 April 2025.
Get a feel of what it's like to fly with Delta, Alaska Airlines and Porter Airlines from San Francisco Bay Area to Ontario by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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

    C$ 165 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 Flair Airlines, with prices starting from C$ 192 and C$ 194, 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, January is the cheapest month in which you can book a flight from San Francisco Bay Area to Region of Ontario (average of C$ 167). Flying from San Francisco Bay Area to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 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

Discover the top 5 airlines that operate flights from San Francisco Bay Area to Ontario. 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 4 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 298AverageC$ 678FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 304AverageC$ 569FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 308AverageC$ 803FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 322AverageC$ 871FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 328AverageC$ 542FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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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?

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