Cheap flight from San Jose to Ontario from Rp 710,178
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
Swipe up to view more
>
>
>
>
>
Flights from San Jose to Ontario
Cheap flight deals from San Jose to Ontario
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
-
Round-trip
-
One way
-
-
Cheapest nonstop
SJC 08:051h 20mNonstopONT 09:25San Jose - Ontario | Thu, Jun 5 | Southwest Airlines
ONT 06:051h 10mNonstopSJC 07:15Ontario - San Jose | Thu, Jun 12 | Southwest AirlinesRp 1,447,848 Rp 2,436,40141% OFF41% OFFRp 2,436,401 Rp 1,447,848 -
SJC 12:501h 20mNonstopONT 14:10San Jose - Ontario | Thu, May 15 | Southwest Airlines
SIN 16:351h 10mNonstopSJC 17:45Ontario - San Jose | Thu, May 22 | Southwest AirlinesRp 1,777,737 Rp 2,436,40127% OFF27% OFFRp 2,436,401 Rp 1,777,737
-
SJC 06:551h 15mNonstopONT 08:10San Jose - Ontario | Tue, May 6 | Southwest Airlines
SIN 19:001h 10mNonstopSJC 20:10Ontario - San Jose | Tue, May 6 | Southwest AirlinesRp 1,786,901 Rp 2,436,40127% OFF27% OFFRp 2,436,401 Rp 1,786,901
-
SJC 06:551h 15mNonstopONT 08:10San Jose - Ontario | Wed, May 21 | Southwest Airlines
SIN 14:351h 15mNonstopSJC 15:50Ontario - San Jose | Wed, May 21 | Southwest AirlinesRp 1,791,48226% OFFRp 2,436,401 Rp 1,791,482
-
SJC 20:151h 15mNonstopONT 21:30San Jose - Ontario | Tue, May 27 | Southwest Airlines
SIN 06:351h 15mNonstopSJC 07:50Ontario - San Jose | Thu, May 29 | Southwest AirlinesRp 1,802,93726% OFFRp 2,436,401 Rp 1,802,937
-
SJC 20:151h 15mNonstopONT 21:30San Jose - Ontario | Tue, May 20 | Southwest Airlines
SIN 18:524h 37m1 stopsSJC 23:29Ontario - San Jose | Wed, May 28 | Spirit AirlinesRp 1,383,70343% OFFRp 2,436,401 Rp 1,383,703
-
SJC 14:201h 15mNonstopONT 15:35San Jose - Ontario | Tue, Jun 3 | Southwest Airlines
SIN 18:524h 37m1 stopsSJC 23:29Ontario - San Jose | Tue, Jun 10 | Spirit AirlinesRp 1,413,48442% OFFRp 2,436,401 Rp 1,413,484
-
SJC 20:151h 15mNonstopONT 21:30San Jose - Ontario | Wed, Jun 4 | Southwest Airlines
SIN 10:305h 3m1 stopsSJC 15:33Ontario - San Jose | Wed, Jun 11 | Spirit AirlinesRp 1,511,99338% OFFRp 2,436,401 Rp 1,511,993
-
SJC 16:301h 20mNonstopONT 17:50San Jose - Ontario | Thu, May 29 | Southwest Airlines
SIN 18:524h 37m1 stopsSJC 23:29Ontario - San Jose | Wed, Jun 4 | Spirit AirlinesRp 1,599,04734% OFFRp 2,436,401 Rp 1,599,047
-
SJC 19:4111h 43m1 stopsONT 07:24San Jose - Ontario | Thu, May 8 | Frontier Airlines
SIN 11:501h 21mNonstopSJC 13:11Ontario - San Jose | Tue, May 13 | Hawaiian AirlinesRp 1,656,31932% OFFRp 2,436,401 Rp 1,656,319 -
SJC 13:0017h 25m1 stopsONT Invalid DateSan Jose - Ontario | Fri, May 2 | Normal Airline
ONT 15:006hNonstopSJC 16:00Ontario - San Jose | Sun, May 4 | Normal AirlineFind More FlightsFind More Flights
-
Cheapest nonstop
SJC 14:201h 15mNonstopONT 15:35San Jose - Ontario | Tue, Jun 3 | Southwest AirlinesRp 710,178 Rp 2,210,40768% OFF68% OFFRp 2,210,407 Rp 710,178
-
SJC 12:101h 15mNonstopONT 13:25San Jose - Ontario | Wed, Jun 11 | Southwest AirlinesRp 728,506 Rp 2,210,40767% OFF67% OFFRp 2,210,407 Rp 728,506
-
SJC 10:001h 15mNonstopONT 11:15San Jose - Ontario | Thu, May 15 | Southwest AirlinesRp 730,797 Rp 2,210,40767% OFF67% OFFRp 2,210,407 Rp 730,797
-
SJC 20:151h 15mNonstopONT 21:30San Jose - Ontario | Wed, May 14 | Southwest AirlinesRp 730,79767% OFFRp 2,210,407 Rp 730,797
-
SJC 08:051h 20mNonstopONT 09:25San Jose - Ontario | Thu, Jun 12 | Southwest AirlinesRp 730,79767% OFFRp 2,210,407 Rp 730,797
-
SJC 14:201h 15mNonstopONT 15:35San Jose - Ontario | Wed, May 21 | Southwest AirlinesRp 735,37867% OFFRp 2,210,407 Rp 735,378
-
SJC 12:101h 15mNonstopONT 13:25San Jose - Ontario | Tue, Jun 10 | Southwest AirlinesRp 739,96067% OFFRp 2,210,407 Rp 739,960
-
SJC 06:551h 15mNonstopONT 08:10San Jose - Ontario | Wed, Jun 4 | Southwest AirlinesRp 886,57860% OFFRp 2,210,407 Rp 886,578
-
SJC 08:051h 20mNonstopONT 09:25San Jose - Ontario | Thu, Jun 5 | Southwest AirlinesRp 886,57860% OFFRp 2,210,407 Rp 886,578
-
SJC 07:001h 15mNonstopONT 08:15San Jose - Ontario | Thu, May 29 | Southwest AirlinesRp 1,635,70126% OFFRp 2,210,407 Rp 1,635,701
-
SJC 13:0017h 25m1 stopsONT Invalid DateSan Jose - Ontario | Fri, May 2 | Normal AirlineFind More FlightsFind More Flights
-
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
When is the cheapest time to fly from San Jose to Ontario?
We monitor flight fares to help you find the best deals effortlessly
Cheapest flights
From price
Search
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Frequently Asked Questions
-
When are flight tickets from San Jose (SJC) to Ontario (ONT) the cheapest?
Airlines adjust prices for flights from San Jose to Ontario based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from San Jose (SJC) to Ontario (ONT) cost?
According to Trip.com's data, the lowest price is around Rp 3,296,602.
How to find a cheap flight from San Jose to Ontario
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from San Jose to Ontario. Book your flights at the right time and save more.
Be flexible with your travel dates to get the cheapest San Jose to Ontario ticket.
Tap "Date" in the flight search bar to browse the calendar and find airfare from San Jose to Ontario for the next six months in 2025. If you're looking to fly within the next three months, the lowest fare is Rp 710178 for a one-way ticket on Tue, Jun 3.
Compare cheap San Jose to Ontario flight deals from hundreds of airlines.
Our powerful search system compares prices from over 500 airlines. So you can find the cheapest flights from San Jose to Ontario. The most affordable airline currently operating on this route is Southwest Airlines.
Set up a Price Alert to track fare drops.
Set up a Price Alert for your San Jose to Ontario route to track ticket prices effortlessly—no need to check manually every day.
Don't miss out on cheap San Jose to Ontario flight deals and promo codes.
Stay updated on the latest deals with Trip.com Deals and Promo Codes for cheap flights. Sign up for a free membership to unlock even more exclusive flight discounts.
Book early or wait unitl the last minute to fine the best fares.
It's always better to book early! Airlines typically release their lowest fares about a year before departure, so check as soon as flights become available. If you miss that window, you may still find great deals closer to your travel date.
Search for flights on the go.
For the best booking experience on the go, download Trip.com and search for cheap flights from San Jose to Ontario to access exclusive deals just for you.
Flight Info | San Jose to Ontario
| Cheapest one-way flight price | Rp 710,178 |
|---|---|
| Cheapest round-trip ticket price | Rp 1,383,702 |
| Off-season for travel | December |
| Peak season for travel | July |
| Flight distance | 12,771.08 km |
| Popular airline | Frontier Airlines |
Plan Your Trip Around Ontario
Find Cheap Flights & Deals on Trip.com
-
Top Routes from San Jose
-
Top Routes to Ontario
-
Popular Airlines
- Direct flights from San Jose to Portland
- Cheap flights from San Jose to Tokyo
- Return flights from San Jose to Las Vegas
- Return flights from San Jose to Puerto Vallarta
- Return flights from San Jose to San Jose del Cabo
- Cheap flights from San Jose to Houston
- Direct flights from San Jose to San Diego
- Cheap flights from San Jose to Guadalajara
- Direct flights from San Jose to Seattle
- Cheap flights from San Jose to Los Angeles
- Return flights from Dublin to Ontario
- Direct flights from Kota Bharu to Ontario
- Return flights from Castlegar to Ontario
- Cheap flights from Belleville to Ontario
- Direct flights from Vadodara to Ontario
- Cheap flights from Aberdeen to Ontario
- Direct flights from Cleveland to Ontario
- Cheap flights from Malang City to Ontario
- Return flights from Palu to Ontario
- Return flights from Fort Lauderdale to Ontario