CA $374 Cheap Alaska Airlines fights from Ontario (ONT) to San Jose (SJC)

View CA $374 flight on Thu, May 14, 2026Opens in a new window
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Alaska Airlines flights from Ontario to San Jose (ONT→SJC)

Prices were available within the past 7 days and start at CA $374 for one-way flights and CA $650 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Sep 17 - Wed, Sep 24
ONT
Ontario
SJC
San Jose
CA $650 Roundtrip, found 2 days ago
CA $650
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Sep 17 from Ontario to San Jose, returning Wed, Sep 24, priced at CA $650 found 2 days ago
Alaska Airlines
Wed, Sep 17 - Wed, Sep 24
ONT
Ontario
SJC
San Jose
CA $788 Roundtrip, found 2 days ago
CA $788
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Sep 17 from Ontario to San Jose, returning Wed, Sep 24, priced at CA $788 found 2 days ago
Flight from Ontario to San Jose (ONT - SJC) route information
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Norman Y. Mineta San Jose Intl.
Distance
534 km
Average flight time
1 hour 13 mins
*Available to Expedia members.