Flights from San Jose to Ontario

Our cheapest offers for flights from San Jose to Ontario

Here you can compare cheap flights from San Jose (SJC) to Ontario (ONT) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Ontario. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
San Jose
Ontario
Outbound
10/18/25
1 Stopover (PDX)
AS2240, AS1066
08h 49min
Return
11/17/25
1 Stopover (SEA)
AS0594, AS1341
14h 17min
Alaska Airlines ?
$308
Best option
San Jose
Ontario
Outbound
10/18/25
1 Stopover (PHX)
AA2625, AA5002
05h 38min
Return
11/17/25
1 Stopover (SEA)
HA6372, HA6898
05h 58min
American Airlines ?
$428
San Jose
Ontario
Outbound
10/18/25
1 Stopover (PHX)
AA2625, AA5002
05h 38min
Return
11/17/25
1 Stopover (PHX)
AA1666, AA3851
16h 05min
American Airlines ?
$410
San Jose
Ontario
Outbound
10/18/25
1 Stopover (SEA)
HA6774, HA6811
06h 14min
Return
11/17/25
1 Stopover (SEA)
HA6372, HA6898
05h 58min
Hawaiian Airlines ?
$546
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from San Jose to Ontario

Favorite airline: e.g. American Airlines, Alaska Airlines, Spirit Airlines
American Airlines is the most popular airline for flights from San Jose to Ontario.
American Airlines
29 %
Alaska Airlines
29 %
Spirit Airlines
29 %
Favourite connection: via Phoenix - Sky Harbor
When booking flights from San Jose to Ontario 67 % of travelers prefer to fly via Phoenix - Sky Harbor.
Route
bookings
1 stopover Phoenix - Sky Harbor International Airport
05h 40min, from $451
67 %
1 stopover Seattle-Tacoma International Airport, WA
13h 34min, from $327
33 %

Important flight information

Flight information: San Jose - Ontario

Roundtrip from $307.73
Flight duration min. 01:10 / max. 12:15
Return flight duration min. 01:10/ max. 01:15
Distance 537 km
Flights per week 38
Departure airport Airport San Jose International Airport, CA (SJC)
Arrival airport Airport Ontario-CA (ONT)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Ontario
Flight destinations with a similar price
Flight destinations with a similar price