Cheap Flights from Ontario, CA to San Jose from $179

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On Cheapflightsplus.com you will find 435 connecting flights from Ontario to San Jose. You can compare airfare deals from 7 airlines and multiple travel sites from $179, book and save on cheap plane tickets and last minute offers. Also check out ONT-SJO flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Ontario to San Jose Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $179 (one-way), $307 (round-trip).
Direct flights
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Best Flights from Ontario to San Jose Today

Take a look at the list of non stop flights and flights with layovers from Ontario to San Jose with the lowest price of $179. Take a look at the list of flights with layovers from Ontario to San Jose from $179. There’re no direct flights. The fastest connecting flight – 8h 15m.
Price Departure Arrival Flight Duration Airline Flight
from $202
Find flight
18:41
Ontario
Ontario Int.
 07:15+1 день
San Jose
Juan Santamaria Intl
 11h 34m
layover
3h 26m - San Francisco
 United Airlines
UA552
UA2312
from $205
Find flight
23:25
Ontario
Ontario Int.
 11:15+1 день
San Jose
Juan Santamaria Intl
 10h 50m
layover
5h 0m - San Salvador
 Avianca
AV531
AV613
from $179
Find flight
19:36
Ontario
Ontario Int.
 10:27+2 дня
San Jose
Juan Santamaria Intl
 37h 51m
layover
18h 40m - Las Vegas
9h 52m - Orlando
 Frontier Airlines
F94758
F91728
NK1309
from $202
Find flight
13:36
Ontario
Ontario Int.
 10:11+1 день
San Jose
Juan Santamaria Intl
 19h 35m
layover
3h 57m - San Francisco
6h 30m - Houston
 United Airlines
UA2332
UA2305
UA2448
Show all tickets
*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on September 15, 2025
Full flight schedule will help you in detecting at what time planes fly from Ontario to San Jose. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
06:00 — 19:37
06:00 — 11:15 UA722 United Airlines
Ontario — Houston
5h 43m stop
16:58 — 19:37 UA1280 United Airlines
Houston — San Jose
12h 37m
including layover
Find flight
from$202
06:00 — 22:39
06:00 — 11:15 UA397 United Airlines
Ontario — Houston
8h 45m stop
20:00 — 22:39 UA1055 United Airlines
Houston — San Jose
15h 39m
including layover
Find flight
from$202
06:00 — 22:39
06:00 — 11:15 UA722 United Airlines
Ontario — Houston
8h 45m stop
20:00 — 22:39 UA1055 United Airlines
Houston — San Jose
15h 39m
including layover
Find flight
from$202
06:04 — 19:37
06:00 — 11:15 UA1936 United Airlines
Ontario — Houston
5h 39m stop
16:58 — 19:37 UA1280 United Airlines
Houston — San Jose
12h 33m
including layover
Find flight
from$202
07:00 — 23:30
+1 day
06:00 — 07:16 F92232 Frontier Airlines
Ontario — Las Vegas
4h 30m stop
13:50 — 15:15 AS2014 Alaska Airlines
Las Vegas — Los Angeles
2h 24m stop
17:08 — 23:46 AS1352 Alaska Airlines
Los Angeles — San Jose
15h 30m
including layover
Find flight
from$186
12:48 — 12:40
+1 day
12:48 — 18:19 F93132 Frontier Airlines
Ontario — Houston
11h 1m stop
05:20 — 08:50 NK1571 Spirit Airlines
Houston — Orlando
2h 35m stop
11:25 — 12:40 NK1309 Spirit Airlines
Orlando — San Jose
22h 52m
including layover
Find flight
from$198
13:35 — 10:11
+1 day
13:33 — 16:51 UA1942 United Airlines
Ontario — Denver
1h 14m stop
18:05 — 21:34 UA1430 United Airlines
Denver — Houston
9h 51m stop
07:25 — 10:11 UA2448 United Airlines
Houston — San Jose
19h 36m
including layover
Find flight
from$202
13:35 — 10:11
+1 day
13:35 — 16:51 UA1942 United Airlines
Ontario — Denver
2h 29m stop
19:20 — 22:48 UA475 United Airlines
Denver — Houston
8h 37m stop
07:25 — 10:11 UA2448 United Airlines
Houston — San Jose
19h 36m
including layover
Find flight
from$202
13:35 — 10:11
+1 day
13:35 — 16:51 UA1942 United Airlines
Ontario — Denver
3h 36m stop
20:27 — 23:55 UA2419 United Airlines
Denver — Houston
7h 30m stop
07:25 — 10:11 UA2448 United Airlines
Houston — San Jose
19h 36m
including layover
Find flight
from$202
13:36 — 10:11
+1 day
13:36 — 15:03 UA2332 United Airlines
Ontario — San Francisco
3h 57m stop
19:00 — 00:55 UA2305 United Airlines
San Francisco — Houston
6h 30m stop
07:25 — 10:11 UA2448 United Airlines
Houston — San Jose
19h 35m
including layover
Find flight
from$202
13:42 — 07:15
+1 day
13:36 — 15:03 UA2332 United Airlines
Ontario — San Francisco
8h 39m stop
23:34 — 07:15 UA2312 United Airlines
San Francisco — San Jose
16h 33m
including layover
Find flight
from$202
17:21 — 10:27
+1 day
17:21 — 20:45 F92908 Frontier Airlines
Ontario — Denver
3h 38m stop
00:26 — 06:09 F91734 Frontier Airlines
Denver — Orlando
3h 8m stop
09:08 — 10:27 NK1309 Spirit Airlines
Orlando — San Jose
16h 6m
including layover
Find flight
from$199
18:41 — 07:15
+1 day
18:41 — 20:08 UA552 United Airlines
Ontario — San Francisco
3h 26m stop
23:34 — 07:15 UA2312 United Airlines
San Francisco — San Jose
11h 34m
including layover
Find flight
from$202
19:36 — 10:27
+2 days
19:36 — 20:45 F94758 Frontier Airlines
Ontario — Las Vegas
18h 40m stop
15:25 — 23:16 F91728 Frontier Airlines
Las Vegas — Orlando
9h 52m stop
09:08 — 10:27 NK1309 Spirit Airlines
Orlando — San Jose
37h 51m
including layover
Find flight
from$179
21:41 — 23:30
+3 days
21:41 — 23:14 F92677 Frontier Airlines
Ontario — San Jose
20h 43m stop
19:57 — 21:17 AS2109 Alaska Airlines
San Jose — Los Angeles
19h 9m stop
16:26 — 23:30 AS1352 Alaska Airlines
Los Angeles — San Jose
48h 49m
including layover
Find flight
from$184
*Departure and arrival times - local. Updated on September 15, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Ontario to San Jose depends on and how to choose the most interesting flight option for you.

Distance between Ontario and San Jose is 4324 miles. Time difference between the cities is 2h. Airplanes depart 00:08 to 23:25 from 2 Ontario airports and arrive 00:08 to 23:25 to 2 San Jose airports. Average flight time is 22h 52m.

  • The fastest flight 8h 15m
  • Average flight time 22h 52m
  • The earliest flight 00:08
  • The latest flight 23:25
  • Distance 2687 ml

The cheapest months to travel to San Jose are june (from 179 $), august (from 184 $), may (from 186 $).

The most expensive months are december (from 776 $), november (from 442 $), february (from 261 $).

What is the lowest airfare Ontario to San Jose?

The cheapest plane ticket found by our users is $179. This airfare is for economy class on one-way F94758 flight by Frontier Airlines for June 6, 2025 which leaves Ontario Int. in Ontario at 19:36 am and arrives at San Jose Juan Santamaria Intl at 10:27.

Economy class
$179
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Business class
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First class
?
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Popular Airlines on the Route

The flight Ontario — San Jose is served by 7 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Air Canada - 21 departures per week at the price of from $ 577 . And the most expensive tickets are offered by Avianca airline - from $ 1724.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 435 flights with layovers on the route. The fastest connecting flight is AV531 by Avianca takes 8h 15m and the cheapest is F94758 by Frontier Airlines for $179.

  • AS - Alaska Airlines
    from $241
    Find
  • AC - Air Canada
    from $577
    Find
  • F9 - Frontier Airlines
    from $179
    Find
  • AV - Avianca
    from $205
    Find
  • HA - Hawaiian Airlines
    from $272
    Find
  • Y4 - Volaris
    from $275
    Find
  • UA - United Airlines
    from $202
    Find
See more connecting flights

Airports

You can fly from Ontario to San Jose from 2 airports (Ontario Int., International Heliport).

Ontario airports

  • Ontario Int.-ONT
    from $179
    Find
  • International Heliport-JIO
    Find

San Jose airports

  • Juan Santamaria Intl-SJO
    Find
  • Tobias Bolanos Intl-SYQ
    Find

Airplanes

There are flights to San Jose from Ontario by 7 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Ontario

You may also consider searching for discounted plane tickets to some other popular places from Ontario within United States.

Top International Destinations from Ontario

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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