Cheap flights from San Francisco (SFO) to Ontario from $88
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 9/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SFO — YYZ
Jun 7 — Jun 141
From?
To?
1 adult, Economy
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How far in advance should I book a flight from San Francisco to Region of Ontario?
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 56 days in advance, which can save you up to 63% on flights from San Francisco to Region of Ontario compared to booking the week you need them. Waiting 56 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $544. For sooner than that we have options available in the next 3 days from $799.
What is the cheapest month to fly from San Francisco to Region of Ontario?
February is one of the best times of the year to fly to Region of Ontario from San Francisco. Prices for February average $489 per person but you can even find prices for as low as $173. The most expensive prices can be found in the month of December. Opting for a February flight can save you 34% on your journey compared to booking in December
What is the cheapest time of day to fly from SFO to ON?
When flying from San Francisco to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Cheap United Airlines flights from San Francisco to Ontario
Explore cheap flight options specifically provided by United Airlines for the route between San Francisco and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Check out some of the cheapest United Airlines flights we've come across from San Francisco to Ontario. It's recommended that users confirm their flight details before booking.
Mon 6/1010:35 pmSFO - YOW
1 stop15h 29mUnited Airlines
Tue 6/186:05 amYOW - SFO
1 stop8h 28mUnited Airlines
Deal found 6/1$539
Sun 6/910:35 pmSFO - YOW
1 stop15h 29mUnited Airlines
Mon 6/175:26 pmYOW - SFO
1 stop10h 33mUnited Airlines
Deal found 6/2$580
Mon 6/1010:35 pmSFO - YYZ
1 stop8h 23mUnited Airlines
Wed 6/266:30 amYYZ - SFO
Nonstop5h 29mUnited Airlines
Deal found 6/1$581
Fri 7/1212:12 amSFO - YOW
1 stop13h 52mUnited Airlines
Thu 7/185:30 pmYOW - SFO
1 stop9h 26mUnited Airlines
Deal found 6/1$604
Fri 6/712:30 amSFO - YYZ
1 stop19h 06mUnited Airlines
Sun 6/96:30 amYYZ - SFO
Nonstop5h 29mUnited Airlines
Deal found 5/31$610
Fri 6/712:30 amSFO - YYZ
1 stop19h 06mUnited Airlines
Sun 6/96:10 amYYZ - SFO
1 stop15h 50mUnited Airlines
Deal found 5/31$616
Sat 6/812:55 pmSFO - YYZ
1 stop7h 59mUnited Airlines
Wed 6/266:30 amYYZ - SFO
Nonstop5h 29mUnited Airlines
Deal found 6/1$622
Tue 8/612:12 amSFO - YOW
1 stop13h 52mUnited Airlines
Wed 8/145:30 amYOW - SFO
2 stops16h 25mUnited Airlines
Deal found 6/1$666
Cheap Sun Country Air flights from San Francisco to Ontario
Explore cheap flight options specifically provided by Sun Country Air for the route between San Francisco and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Take a gander at the lowest prices we've found on Sun Country Air flights from San Francisco to Ontario. Deals frequently update to provide users with more options.
Sat 8/1011:59 pmSFO - YYZ
1 stop10h 41mSun Country Air
Sun 8/1811:40 amYYZ - SFO
1 stop23h 38mSun Country Air
Deal found 6/1$430
Mon 7/1511:59 pmSFO - YUL
1 stop9h 36mSun Country Air
Fri 7/1911:45 amYUL - SFO
1 stop8h 40mSun Country Air
Deal found 6/1$434
Thu 7/1112:25 amSFO - YUL
1 stop7h 20mSun Country Air
Fri 7/1911:45 amYUL - SFO
1 stop8h 40mSun Country Air
Deal found 6/1$444
Thu 7/1112:25 amSFO - YUL
1 stop7h 20mSun Country Air
Mon 7/2211:45 amYUL - SFO
1 stop14h 11mSun Country Air
Deal found 6/1$459
Thu 7/1112:25 amSFO - YUL
1 stop7h 20mSun Country Air
Thu 7/1810:40 amYUL - SFO
1 stop13h 01mSun Country Air
Deal found 6/1$479
Thu 7/2511:59 pmSFO - YUL
1 stop7h 46mSun Country Air
Mon 7/2911:45 amYUL - SFO
1 stop14h 11mSun Country Air
Deal found 6/2$494
Wed 6/1210:31 amSFO - YYZ
1 stop28h 01mSun Country Air
Thu 6/206:36 pmYYZ - SFO
1 stop16h 31mSun Country Air
Deal found 6/1$659
Cheap San Francisco to Ontario flights in June & July 2024
Find cheap flight options from San Francisco to Ontario specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Prices were last updated on June 2, 2024.
Scroll through some of the best deals on flights from San Francisco to Ontario in 2024. Check back soon for alternative fares.
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 20mMultiple Airlines
Tue 6/1812:20 pmYYZ - SFO
1 stop15h 24mMultiple Airlines
Deal found 6/2$245
Tue 6/1812:22 pmSFO - YYZ
1 stop15h 23mMultiple Airlines
Wed 6/198:00 pmYYZ - SFO
1 stop29h 01mMultiple Airlines
Deal found 6/2$256
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 20mMultiple Airlines
Mon 6/178:00 pmYYZ - SFO
1 stop20h 56mMultiple Airlines
Deal found 6/1$257
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 20mMultiple Airlines
Sun 6/168:20 pmYYZ - SFO
1 stop18h 49mMultiple Airlines
Deal found 6/1$259
Tue 6/188:25 pmSFO - YYZ
1 stop20h 25mMultiple Airlines
Mon 6/248:00 pmYYZ - SFO
1 stop20h 56mMultiple Airlines
Deal found 5/31$260
Tue 6/1812:22 pmSFO - YYZ
1 stop15h 23mMultiple Airlines
Sun 6/238:20 pmYYZ - SFO
1 stop28h 46mMultiple Airlines
Deal found 6/2$262
Tue 6/1812:22 pmSFO - YYZ
1 stop15h 23mMultiple Airlines
Thu 6/208:20 pmYYZ - SFO
1 stop28h 41mMultiple Airlines
Deal found 6/2$271
Tue 6/1812:22 pmSFO - YYZ
1 stop15h 23mMultiple Airlines
Tue 6/251:25 pmYYZ - SFO
1 stop11h 21mMultiple Airlines
Deal found 6/2$277
Tue 6/1812:22 pmSFO - YYZ
1 stop15h 23mMultiple Airlines
Fri 6/218:00 pmYYZ - SFO
1 stop28h 59mMultiple Airlines
Deal found 6/2$278
San Francisco to Ontario 2024 flight deals
Discover exclusive flight deals for travel between San Francisco and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Scroll through some of the best deals on flights from San Francisco to Ontario in 2024. Check back soon for alternative fares.
Tue 9/176:18 pmSFO - YYZ
1 stop9h 17mMultiple Airlines
Tue 10/88:20 pmYYZ - SFO
1 stop18h 55mMultiple Airlines
Deal found 6/1$228
Tue 9/176:18 pmSFO - YYZ
1 stop9h 17mMultiple Airlines
Thu 10/38:00 pmYYZ - SFO
1 stop8h 28mMultiple Airlines
Deal found 6/1$241
Tue 6/1812:22 pmSFO - YYZ
1 stop15h 23mMultiple Airlines
Tue 6/258:00 pmYYZ - SFO
1 stop19h 40mMultiple Airlines
Deal found 6/2$243
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 20mMultiple Airlines
Tue 6/1812:20 pmYYZ - SFO
1 stop15h 24mMultiple Airlines
Deal found 6/2$245
Tue 10/156:18 pmSFO - YYZ
1 stop9h 17mMultiple Airlines
Tue 10/2212:20 pmYYZ - SFO
1 stop12h 18mMultiple Airlines
Deal found 6/1$252
Tue 9/176:18 pmSFO - YYZ
1 stop9h 17mMultiple Airlines
Wed 10/21:30 pmYYZ - SFO
1 stop11h 44mMultiple Airlines
Deal found 6/1$254
Tue 6/1812:22 pmSFO - YYZ
1 stop15h 23mMultiple Airlines
Wed 6/198:00 pmYYZ - SFO
1 stop29h 01mMultiple Airlines
Deal found 6/2$256
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 20mMultiple Airlines
Mon 6/178:00 pmYYZ - SFO
1 stop20h 56mMultiple Airlines
Deal found 6/1$257
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 20mMultiple Airlines
Sun 6/168:20 pmYYZ - SFO
1 stop18h 49mMultiple Airlines
Deal found 6/1$259
Non-stop flights to Ontario from San Francisco
Discover non-stop flight options from San Francisco to Ontario. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
For a quicker trip, book one of these direct flights from San Francisco to Ontario. Users seeking other options on flights from San Francisco to Ontario should update the search form at the top of the page.
Sat 8/106:15 amSFO - YUL
Nonstop5h 25mPorter Airlines
Sun 8/188:00 pmYUL - SFO
Nonstop6h 12mPorter Airlines
Deal found 5/31$405
Sat 10/126:15 amSFO - YUL
Nonstop5h 25mPorter Airlines
Fri 10/188:00 pmYUL - SFO
Nonstop6h 16mPorter Airlines
Deal found 6/1$483
Sat 9/146:15 amSFO - YUL
Nonstop5h 25mPorter Airlines
Tue 9/248:00 pmYUL - SFO
Nonstop6h 16mPorter Airlines
Deal found 6/1$506
Wed 9/186:15 amSFO - YUL
Nonstop5h 25mPorter Airlines
Fri 9/278:00 pmYUL - SFO
Nonstop6h 16mPorter Airlines
Deal found 6/1$507
Wed 9/186:15 amSFO - YUL
Nonstop5h 25mPorter Airlines
Sun 9/228:00 pmYUL - SFO
Nonstop6h 16mPorter Airlines
Deal found 6/1$514
Mon 7/86:15 amSFO - YUL
Nonstop5h 25mPorter Airlines
Tue 7/168:00 pmYUL - SFO
Nonstop6h 12mPorter Airlines
Deal found 6/1$519
Tue 8/61:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Tue 8/1310:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 6/1$520
Sun 7/211:55 pmSFO - YYZ
Nonstop4h 55mPorter Airlines
Wed 7/2410:15 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/31$526
Sat 7/131:55 pmSFO - YYZ
Nonstop4h 55mPorter Airlines
Tue 7/2310:15 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 6/1$527
San Francisco to Ontario flights leaving soon
Find last-minute flight options from San Francisco to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Have a look at some of the flights available from San Francisco to Ontario departing last-minute. It's wise to confirm all flight details are correct before booking.
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 20mMultiple Airlines
Tue 6/1812:20 pmYYZ - SFO
1 stop15h 24mMultiple Airlines
Deal found 6/2$245
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 20mMultiple Airlines
Mon 6/178:00 pmYYZ - SFO
1 stop20h 56mMultiple Airlines
Deal found 6/1$257
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 20mMultiple Airlines
Sun 6/168:20 pmYYZ - SFO
1 stop18h 49mMultiple Airlines
Deal found 6/1$259
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 20mMultiple Airlines
Tue 7/98:20 pmYYZ - SFO
1 stop19h 22mMultiple Airlines
Deal found 6/1$283
Wed 6/1212:07 pmSFO - YYZ
1 stop15h 35mMultiple Airlines
Mon 6/178:00 pmYYZ - SFO
1 stop20h 56mMultiple Airlines
Deal found 6/1$297
Wed 6/1212:07 pmSFO - YYZ
1 stop15h 35mMultiple Airlines
Sun 6/168:20 pmYYZ - SFO
1 stop18h 49mMultiple Airlines
Deal found 6/1$299
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 20mMultiple Airlines
Tue 7/1612:00 pmYYZ - SFO
2 stops15h 44mMultiple Airlines
Deal found 6/1$305
Tue 6/1110:38 amSFO - YYZ
1 stop17h 04mMultiple Airlines
Tue 7/92:30 pmYYZ - SFO
2 stops13h 14mMultiple Airlines
Deal found 6/1$311
Mon 6/1012:22 pmSFO - YYZ
1 stop28h 30mMultiple Airlines
Tue 7/1612:00 pmYYZ - SFO
2 stops15h 44mMultiple Airlines
Deal found 6/1$312
One-way flights to Ontario from San Francisco
Search for one-way flight options from San Francisco to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Take a look at some of the best available options we've come across on one-way flights from San Francisco to Ontario. Those needing a return flight from San Francisco to Ontario can use the search form above.
Sun 9/226:18 pmSFO - YYZ
1 stop9h 17mMultiple Airlines
Deal found 6/1$88
Tue 6/188:25 pmSFO - YYZ
1 stop20h 25mMultiple Airlines
Deal found 6/1$103
Tue 6/1810:17 amSFO - YYZ
1 stop9h 28mMultiple Airlines
Deal found 6/1$105
Wed 6/1912:08 pmSFO - YYZ
1 stop15h 35mMultiple Airlines
Deal found 6/1$106
Mon 6/1012:22 pmSFO - YYZ
1 stop28h 30mMultiple Airlines
Deal found 6/1$112
Tue 7/910:33 amSFO - YYZ
1 stop17h 02mMultiple Airlines
Deal found 6/1$114
Tue 9/36:18 pmSFO - YYZ
1 stop25h 27mMultiple Airlines
Deal found 6/1$123
Sat 6/2212:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Deal found 6/1$124
Tue 7/22:42 pmSFO - YYZ
1 stop28h 04mMultiple Airlines
Deal found 6/2$130
Find flights from San Francisco to Ontario within your budget
Customize your flight search to find flights from San Francisco 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 2,810,401 searches. Data last updated June 2, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$228 - $604
Route
Depart
Return
Price
San FranciscoToronto Pearson Intl
SFO - YYZ
SFOYYZ
San Francisco
Tue 9/17
1 stop9h 17m
Toronto Pearson Intl
Tue 10/8
1 stop18h 55m
$228
San FranciscoToronto Pearson Intl
SFO - YYZ
SFOYYZ
San Francisco
Tue 9/17
1 stop9h 17m
Toronto Pearson Intl
Thu 10/3
1 stop8h 28m
$241
San FranciscoToronto Pearson Intl
SFO - YYZ
SFOYYZ
San Francisco
Wed 6/19
1 stop8h 34m
Toronto Pearson Intl
Tue 6/25
1 stop19h 40m
$245
San FranciscoToronto Kitchener-Waterloo
SFO - YKF
SFOYKF
San Francisco
Tue 7/23
1 stop17h 45m
Toronto Kitchener-Waterloo
Tue 7/30
1 stop15h 55m
$390
San FranciscoMontreal Pierre Elliott Trudeau Intl
SFO - YUL
SFOYUL
San Francisco
Sat 8/10
Nonstop5h 25m
Montreal Pierre Elliott Trudeau Intl
Sun 8/18
Nonstop6h 12m
$405
San FranciscoToronto Pearson Intl
SFO - YYZ
SFOYYZ
San Francisco
Sat 8/10
1 stop10h 41m
Toronto Pearson Intl
Sun 8/18
1 stop23h 38m
$430
San FranciscoToronto Kitchener-Waterloo
SFO - YKF
SFOYKF
San Francisco
Tue 8/13
1 stop9h 02m
Toronto Kitchener-Waterloo
Tue 8/20
2 stops11h 18m
$433
San FranciscoOttawa
SFO - YOW
SFOYOW
San Francisco
Fri 7/12
1 stop7h 24m
Ottawa
Wed 7/24
1 stop8h 51m
$563
San FranciscoOttawa
SFO - YOW
SFOYOW
San Francisco
Fri 7/12
1 stop13h 52m
Ottawa
Thu 7/18
1 stop9h 26m
$604
No data available for this route at this time. Please check back soon.
Best time to book a flight from San Francisco to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from San Francisco 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.
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 June 2, 2024.
Peruse reviews from past customers who have flown with United Airlines, Sun Country Air and WestJet from San Francisco to Ontario to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
9,198 reviews
Food
7.3
Entertainment
7.3
Overall
8.1
Crew
8.6
Boarding
8.2
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
9,198 reviews
9,198 reviews
Food
7.3
Entertainment
7.3
Overall
8.1
Crew
8.6
Boarding
8.2
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,410 reviews
9,198 reviews
Food
7.3
Entertainment
7.3
Overall
8.1
Crew
8.6
Boarding
8.2
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
2,861 reviews
9,198 reviews
Food
7.3
Entertainment
7.3
Overall
8.1
Crew
8.6
Boarding
8.2
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
388 reviews
9,198 reviews
Food
7.3
Entertainment
7.3
Overall
8.1
Crew
8.6
Boarding
8.2
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,755 reviews
9,198 reviews
Food
7.3
Entertainment
7.3
Overall
8.1
Crew
8.6
Boarding
8.2
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
Related info for your journey
Find useful and relevant information for your journey from San Francisco 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
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for San Francisco to OntarioSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from San Francisco to Ontario
Discover the top 10 airlines that operate flights from San Francisco 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 2,810,401 searches. Data last updated June 2, 2024.
Search flights from San Francisco to Ontario by cabin class
Find flights from San Francisco to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from San Francisco to Ontario
Find hourly flight availability from San Francisco 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 June 2, 2024.
| 22%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 27%of flight departures | Morning6 am to noon |
| 15%of flight departures | AfternoonNoon to 6 pm |
| 36%of flight departures | Evening6 pm to midnight |
Midnight
6 AM
Noon
6 PM
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
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 to Ontario?
When you search for this flight from San Francisco to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from San Francisco to Ontario?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from San Francisco to Ontario for you. Better yet — we are completely free to use.
Can Cheapflights find flights from San Francisco to Ontario with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from San Francisco to Ontario, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from San Francisco to Ontario become cheaper?
Yes, Cheapflights offers price alerts on San Francisco to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.