Worldwide Coverage
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Secure Payment
Convenient & reliable booking and payment system

Flights from Ontario to San Jose Starting at AU$ 58

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Return

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from Ontario to San Jose

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Airlines Flying from Ontario to San Jose

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Southwest Airlines
From AU$ 58
Frontier Airlines
From AU$ 118
Alaska Airlines
From AU$ 206
American Airlines
From AU$ 261
United Airlines
From AU$ 367
Delta Air Lines
From AU$ 484
Hawaiian Airlines
From AU$ 808
ANA airlines

Find more flights and airlines

Alternative Routes from Ontario to San Jose

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Ontario to San Jose.

  • Cheapest
    Southwest Airlines
    ONT
    11:25
    1h 15m
    Direct
    SJC
    12:40
    Ontario International Airport - SJ International Airport
    Tue, Apr 2Southwest Airlines
    AU$ 58
  • Southwest Airlines
    ONT
    11:25
    1h 15m
    Direct
    SJC
    12:40
    Ontario International Airport - SJ International Airport
    Tue, Apr 2Southwest Airlines
    AU$ 58
    Find More Flights

How do I find the cheapest flights?

  • When are flight from Ontario (ONT) to San Jose (SJC) the cheapest?

    Airlines adjust prices for flights from Ontario to San Jose based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much are flights from Ontario (ONT) to San Jose (SJC) cost?

    According to Trip.com's data, the lowest price is around AU$ 488.
  • What is the transportation method from the main airport to downtown in San Jose?

    • The distance from SJ International Airport to downtown is about 4km, by taxi about 20 minutes.
  • What's the most popular airline for direct flights from Ontario (ONT) to San Jose (SJC)?

    Delta Air Lines operates 1 direct flights from Ontario (ONT) to San Jose (SJC).
  • How many airports in San Jose (SJC)?

    There are 2 airport(s) in San Jose (SJC): San Jose Reid-Hillview Airport and SJ International Airport.

Flight Information from Ontario to San Jose

Cheapest direct flight price

AU$ 58

Cheapest return ticket price

AU$ 113

Off-season for travel

February

Peak season for travel

April