Cheap flights from San Jose, CA to Ontario from C$ 279
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from San Jose to Ontario
Cheapest flights from San Jose to OntarioExplore the most affordable flight options available from San Jose to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 October 2026.
Explore the most affordable flight options available from San Jose to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 October 2026.
Best flights from San Jose to OntarioDiscover carefully curated flight deals from San Jose to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.
Discover carefully curated flight deals from San Jose to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.
Last-minute flights from San Jose to OntarioDiscover last-minute flight deals from San Jose to Ontario. Data last updated 5 October 2026 and is based on user searches.
Discover last-minute flight deals from San Jose to Ontario. Data last updated 5 October 2026 and is based on user searches.
One-way flights from San Jose to OntarioSearch for one-way flight options from San Jose to Ontario. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.
Search for one-way flight options from San Jose to Ontario. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.
Find flight deals from San Jose to Ontario
Keep the following information in mind while searching for San Jose to Ontario flight deals. Data was last updated 5 October 2026.
Cheapflights Fare Finder
Use the filters below to find and compare flights from San Jose to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
San JoseToronto
SJC San Jose - YYZ Toronto Pearson Intl
SJCYYZ
San Jose
Tue 20/10
6:30 a.m.-5:56 p.m.
1 stop8h 26m
Toronto Pearson Intl
Wed 31/12
12:00 a.m.-9:00 p.m.
Nonstop0h 00m
San JoseToronto
SJC San Jose - YYZ Toronto Pearson Intl
SJCYYZ
San Jose
Tue 20/10
6:30 a.m.-5:18 p.m.
1 stop7h 48m
Toronto Pearson Intl
Wed 31/12
12:00 a.m.-9:00 p.m.
Nonstop0h 00m
San JoseToronto
SJC San Jose - YYZ Toronto Pearson Intl
SJCYYZ
San Jose
Wed 25/11
6:30 a.m.-4:47 p.m.
1 stop7h 17m
Toronto Pearson Intl
Wed 31/12
12:00 a.m.-9:00 p.m.
Nonstop0h 00m
San JoseToronto
SJC San Jose - YYZ Toronto Pearson Intl
SJCYYZ
San Jose
Thu 22/10
6:00 a.m.-4:44 p.m.
1 stop7h 44m
Toronto Pearson Intl
Wed 31/12
12:00 a.m.-9:00 p.m.
Nonstop0h 00m
San JoseToronto
SJC San Jose - YYZ Toronto Pearson Intl
SJCYYZ
San Jose
Fri 23/10
10:45 p.m.-10:23 a.m.
1 stop8h 38m
Toronto Pearson Intl
Wed 31/12
12:00 a.m.-9:00 p.m.
Nonstop0h 00m
San JoseToronto
SJC San Jose - YYZ Toronto Pearson Intl
SJCYYZ
San Jose
Sun 18/10
6:30 a.m.-9:59 p.m.
1 stop12h 29m
Toronto Pearson Intl
Wed 31/12
12:00 a.m.-9:00 p.m.
Nonstop0h 00m
San JoseToronto
SJC San Jose - YYZ Toronto Pearson Intl
SJCYYZ
San Jose
Sun 18/10
7:16 p.m.-12:34 p.m.
2 stops14h 18m
Toronto Pearson Intl
Wed 31/12
12:00 a.m.-9:00 p.m.
Nonstop0h 00m
San JoseToronto
SJC San Jose - YYZ Toronto Pearson Intl
SJCYYZ
San Jose
Mon 16/11
1:00 p.m.-11:57 p.m.
1 stop7h 57m
Toronto Pearson Intl
Wed 31/12
12:00 a.m.-9:00 p.m.
Nonstop0h 00m
San JoseToronto
SJC San Jose - YYZ Toronto Pearson Intl
SJCYYZ
San Jose
Tue 17/11
2:14 p.m.-11:59 p.m.
1 stop6h 45m
Toronto Pearson Intl
Tue 24/11
6:45 a.m.-12:02 p.m.
1 stop8h 17m
San JoseToronto
SJC San Jose - YYZ Toronto Pearson Intl
SJCYYZ
San Jose
Tue 20/10
6:30 a.m.-7:37 p.m.
1 stop10h 07m
Toronto Pearson Intl
Wed 28/10
6:45 a.m.-12:02 p.m.
1 stop8h 17m
Best time to book a flight from San Jose to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from San Jose with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from San Jose to Ontario
What is the cheapest month to book a flight from San Jose, California to Region of Ontario?
Currently, December is the cheapest month in which you can book a flight from San Jose, California to Region of Ontario (average of C$ 482). Flying from San Jose, California to Region of Ontario in April is currently the most expensive (average of C$ 1,143). 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.
How much does it cost to fly round-trip from San Jose, California to Region of Ontario?
Airfare is typical for this route at the moment.
San Jose, California to Region of Ontario flights typically cost between C$ 664 and C$ 989 in October.The cheapest round-trip price found within the last 5 days was C$ 677 on United Airlines (27 Oct-28 Oct).
Related info for your journey
Find useful and relevant information for your journey from San Jose to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for San Jose to Ontario
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Direct flights to Canada
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San Jose and Ontario flights
Browse other San Jose and Ontario flight options. Last updated on 5 October 2026.
Popular flight searches
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San Jose to Ontario flights
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When you search for this flight from San Jose 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 Jose 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 Jose.
Can Cheapflights find flights from San Jose to Ontario with no change fees?
Need flexible booking options for your flight to Ontario from San Jose? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
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Yes! Start tracking prices for San Jose to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.