Flights to San Jose from Ontario

View ฿3,215 flight on Wed, 13 Aug 2025Opens in a new window

Popular airlines from Ontario to San Jose

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Ontario (QLA) to San Jose (SJC)

Prices were available within the past 7 days and start at ฿3,215 for one-way flights and ฿6,425 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 27 Aug - Wed, 3 Sep
SNA
Orange County
SFO
San Francisco
฿6,425 Return, found 2 days ago
฿6,425
Return
found 2 days ago
Select American Airlines flight, departing Wed, 27 Aug from Orange County to San Francisco, returning Wed, 3 Sep, priced at ฿6,425 found 2 days ago
United
Wed, 27 Aug - Wed, 3 Sep
SNA
Orange County
SFO
San Francisco
฿6,435 Return, found 2 days ago
฿6,435
Return
found 2 days ago
Select United flight, departing Wed, 27 Aug from Orange County to San Francisco, returning Wed, 3 Sep, priced at ฿6,435 found 2 days ago
American Airlines
Wed, 27 Aug - Wed, 3 Sep
SNA
Orange County
SFO
San Francisco
฿6,750 Return, found 2 days ago
฿6,750
Return
found 2 days ago
Select American Airlines flight, departing Wed, 27 Aug from Orange County to San Francisco, returning Wed, 3 Sep, priced at ฿6,750 found 2 days ago
United
Wed, 27 Aug - Wed, 3 Sep
SNA
Orange County
SFO
San Francisco
฿6,760 Return, found 2 days ago
฿6,760
Return
found 2 days ago
Select United flight, departing Wed, 27 Aug from Orange County to San Francisco, returning Wed, 3 Sep, priced at ฿6,760 found 2 days ago
American Airlines
Wed, 27 Aug - Wed, 3 Sep
SNA
Orange County
SFO
San Francisco
฿7,075 Return, found 2 days ago
฿7,075
Return
found 2 days ago
Select American Airlines flight, departing Wed, 27 Aug from Orange County to San Francisco, returning Wed, 3 Sep, priced at ฿7,075 found 2 days ago
Delta
Wed, 27 Aug - Wed, 3 Sep
SNA
Orange County
SFO
San Francisco
฿10,545 Return, found 2 days ago
฿10,545
Return
found 2 days ago
Select Delta flight, departing Wed, 27 Aug from Orange County to San Francisco, returning Wed, 3 Sep, priced at ฿10,545 found 2 days ago

Find the cheapest month to fly from Ontario (ONT) to San Jose (SJC)

August is typically the cheapest month to fly

From ฿3,160 - ฿11,664 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.