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Cheap flights from San Francisco Bay Area to Ontario from C$ 145
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 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YYZ
6 Aug — 13 Aug1
Round-trip
1 adult
Economy
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 1 August 2025.
Find 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 1 August 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 1 August 2025.
Sat 13/910:15 a.m.SFO - YYZ
1 stop11h 28mMultiple Airlines
Thu 18/96:30 p.m.YYZ - SFO
1 stop18h 00mMultiple Airlines
Deal found 31/7C$ 327
Wed 22/1010:15 a.m.SFO - YYZ
1 stop18h 00mFlair Airlines
Fri 31/108:00 p.m.YYZ - SFO
1 stop16h 30mFlair Airlines
Deal found 31/7C$ 336
Thu 4/96:00 a.m.OAK - YYZ
1 stop10h 45mMultiple Airlines
Wed 10/99:45 a.m.YYZ - OAK
1 stop16h 47mMultiple Airlines
Deal found 29/7C$ 369
Fri 12/910:15 a.m.SFO - YHM
1 stop10h 44mMultiple Airlines
Mon 15/95:45 p.m.YHM - SFO
1 stop18h 45mMultiple Airlines
Deal found 29/7C$ 385
Sat 13/98:15 a.m.SJC - YYZ
1 stop8h 30mMultiple Airlines
Mon 15/910:40 a.m.YYZ - SJC
1 stop30h 35mMultiple Airlines
Deal found 29/7C$ 405
Tue 19/812:50 p.m.SFO - YKF
1 stop8h 56mWestJet
Thu 28/86:00 a.m.YKF - SFO
1 stop8h 56mWestJet
Deal found 29/7C$ 417
Tue 16/910:15 a.m.SFO - YKF
2 stops16h 15mMultiple Airlines
Fri 19/96:00 a.m.YKF - SFO
1 stop8h 54mMultiple Airlines
Deal found 30/7C$ 433
Tue 21/1012:50 p.m.SFO - YHM
1 stop8h 50mWestJet
Thu 23/106:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Deal found 31/7C$ 441
Wed 1/1012:50 p.m.SFO - YOW
1 stop8h 50mMultiple Airlines
Wed 8/107:00 a.m.YOW - SFO
1 stop8h 23mMultiple Airlines
Deal found 29/7C$ 455
Tue 9/912:50 p.m.SFO - YOW
1 stop8h 50mWestJet
Mon 15/96:00 a.m.YOW - SFO
1 stop8h 54mWestJet
Deal found 31/7C$ 483
Thu 7/85:27 p.m.OAK - YYZ
1 stop15h 23mSun Country Air
Thu 14/811:40 a.m.YYZ - OAK
1 stop7h 47mSun Country Air
Deal found 28/7C$ 495
Sat 6/94:35 p.m.SFO - YTZ
2 stops14h 10mAir Canada
Sun 5/1012:25 p.m.YTZ - SFO
1 stop10h 26mAir Canada
Deal found 30/7C$ 506
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 1 August 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
Sat 13/9
10:15 a.m.-12:43 a.m.
1 stop11h 28m
Toronto Pearson Intl
Thu 18/9
6:30 p.m.-9:30 a.m.
1 stop18h 00m
C$ 327
San FranciscoToronto
SFO - YYZ
SFOYYZ
San Francisco
Wed 22/10
10:15 a.m.-7:15 a.m.
1 stop18h 00m
Toronto Pearson Intl
Fri 31/10
8:00 p.m.-9:30 a.m.
1 stop16h 30m
C$ 336
OaklandToronto
OAK - YYZ
OAKYYZ
Oakland
Thu 4/9
6:00 a.m.-7:45 p.m.
1 stop10h 45m
Toronto Pearson Intl
Wed 10/9
9:45 a.m.-11:32 p.m.
1 stop16h 47m
C$ 369
San FranciscoHamilton
SFO - YHM
SFOYHM
San Francisco
Tue 9/9
10:15 a.m.-11:59 p.m.
1 stop10h 44m
Hamilton
Wed 17/9
5:45 p.m.-9:30 a.m.
1 stop18h 45m
C$ 394
San JoseToronto
SJC - YYZ
SJCYYZ
San Jose
Sat 13/9
8:15 a.m.-7:45 p.m.
1 stop8h 30m
Toronto Pearson Intl
Mon 15/9
10:40 a.m.-2:15 p.m.
1 stop30h 35m
C$ 405
San FranciscoToronto
SFO - YKF
SFOYKF
San Francisco
Tue 16/9
10:15 a.m.-5:30 a.m.
2 stops16h 15m
Toronto Region of Waterloo Intl
Fri 19/9
6:00 a.m.-11:54 a.m.
1 stop8h 54m
C$ 433
San FranciscoHamilton
SFO - YHM
SFOYHM
San Francisco
Tue 21/10
12:50 p.m.-12:40 a.m.
1 stop8h 50m
Hamilton
Thu 23/10
6:00 a.m.-11:54 a.m.
1 stop8h 54m
C$ 441
San FranciscoToronto
SFO - YKF
SFOYKF
San Francisco
Thu 9/10
12:50 p.m.-12:45 a.m.
1 stop8h 55m
Toronto Region of Waterloo Intl
Tue 14/10
6:00 a.m.-11:54 a.m.
1 stop8h 54m
C$ 443
San FranciscoOttawa
SFO - YOW
SFOYOW
San Francisco
Wed 1/10
12:50 p.m.-12:40 a.m.
1 stop8h 50m
Ottawa
Wed 8/10
7:00 a.m.-12:23 p.m.
1 stop8h 23m
C$ 455
San FranciscoOttawa
SFO - YOW
SFOYOW
San Francisco
Tue 9/9
12:50 p.m.-12:40 a.m.
1 stop8h 50m
Ottawa
Mon 15/9
6:00 a.m.-11:54 a.m.
1 stop8h 54m
C$ 483
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, 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 1 August 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 1 August 2025.
The most flights from zzXIH to CAON are scheduled on a Thursday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).
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 1 August 2025.
See what other customers who have flown with Alaska Airlines,Porter Airlines, andDelta 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.
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentSurinder,May 2025
SEA - YYZ
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentSurinder,May 2025
SEA - YYZ
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentSurinder,May 2025
SEA - YYZ
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentSurinder,May 2025
SEA - YYZ
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentSurinder,May 2025
SEA - YYZ
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentSurinder,May 2025
SEA - YYZ
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.
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 1 August 2025.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
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!