Cheap Flights from San Jose, CA to Ontario, CA from $54

Return flight: Ontario – San Jose

On Cheapflightsplus.com you will find 29 connecting flights from San Jose to Ontario. You can compare airfare deals from 4 airlines and multiple travel sites from $54, book and save on cheap plane tickets and last minute offers. Also check out SJC-ONT flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip San Jose to Ontario 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: $54 (one-way), $93 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from San Jose to Ontario. 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
06:15 — 11:05
06:15 — 08:03 AS2263 Alaska Airlines
San Jose — Portland
39m stop
08:42 — 11:05 AS3312 Alaska Airlines
Portland — Ontario
4h 50m
including layover
Find flight
from$238
06:15 — 16:59
06:15 — 08:03 AS2263 Alaska Airlines
San Jose — Portland
6h 42m stop
14:45 — 16:59 AS2074 Alaska Airlines
Portland — Ontario
10h 44m
including layover
Find flight
from$244
08:32 — 15:58
08:32 — 11:23 F94292 Frontier Airlines
San Jose — Phoenix
4h 22m stop
15:45 — 15:58 F91625 Frontier Airlines
Phoenix — Ontario
7h 26m
including layover
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from$86
10:06 — 15:26
10:06 — 12:17 AS1130 Alaska Airlines
San Jose — Seattle
42m stop
12:59 — 15:26 AS1097 Alaska Airlines
Seattle — Ontario
5h 20m
including layover
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from$238
10:32 — 19:06
10:32 — 16:10 Y41821 Volaris
San Jose — Guadalajara
1h 35m stop
17:45 — 19:06 Y41862 Volaris
Guadalajara — Ontario
8h 34m
including layover
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from$312
11:30 — 06:30
+1 day
14:28 — 18:08 F94918 Frontier Airlines
San Jose — Denver
14h 9m stop
08:07 — 09:39 F91261 Frontier Airlines
Denver — Ontario
19h
including layover
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from$54
11:30 — 19:37
11:30 — 15:02 F94918 Frontier Airlines
San Jose — Denver
3h 13m stop
18:15 — 19:37 F92907 Frontier Airlines
Denver — Ontario
8h 7m
including layover
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from$80
12:59 — 20:55
12:59 — 16:35 UA1510 United Airlines
San Jose — Denver
2h 53m stop
19:28 — 20:55 UA351 United Airlines
Denver — Ontario
7h 56m
including layover
Find flight
from$557
13:11 — 23:58
13:11 — 14:56 AS2240 Alaska Airlines
San Jose — Portland
6h 48m stop
21:44 — 23:58 AS1066 Alaska Airlines
Portland — Ontario
10h 47m
including layover
Find flight
from$244
17:46 — 23:24
17:19 — 19:36 AS1046 Alaska Airlines
San Jose — Seattle
50m stop
20:38 — 23:12 AS1003 Alaska Airlines
Seattle — Ontario
5h 38m
including layover
Find flight
from$181
20:46 — 11:02
+1 day
17:56 — 20:14 AS1185 Alaska Airlines
San Jose — Seattle
9h 25m stop
08:00 — 10:33 AS1254 Alaska Airlines
Seattle — Ontario
14h 16m
including layover
Find flight
from$187
22:20 — 13:01
+1 day
21:55 — 23:23 F94104 Frontier Airlines
San Jose — Las Vegas
12h 2m stop
11:41 — 12:51 F91357 Frontier Airlines
Las Vegas — Ontario
14h 41m
including layover
Find flight
from$75
22:20 — 18:06
+1 day
22:20 — 23:50 F94104 Frontier Airlines
San Jose — Las Vegas
17h 10m stop
17:00 — 18:06 F92231 Frontier Airlines
Las Vegas — Ontario
19h 46m
including layover
Find flight
from$86
08:44 — 18:19
08:30 — 10:23 AS2133 Alaska Airlines
San Jose — Portland
3h 1m stop
13:52 — 14:53 AS1008 Alaska Airlines
Portland — Seattle
1h 17m stop
15:40 — 18:13 AS1086 Alaska Airlines
Seattle — Ontario
9h 35m
including layover
Find flight
from$166
13:11 — 23:24
13:11 — 14:56 AS2240 Alaska Airlines
San Jose — Portland
2h 19m stop
17:15 — 18:10 AS2082 Alaska Airlines
Portland — Seattle
2h 39m stop
20:49 — 23:24 AS1003 Alaska Airlines
Seattle — Ontario
10h 13m
including layover
Find flight
from$288
15:06 — 23:58
15:06 — 17:19 AS1115 Alaska Airlines
San Jose — Seattle
2h 36m stop
19:55 — 20:50 AS958 Alaska Airlines
Seattle — Portland
54m stop
21:44 — 23:58 AS1066 Alaska Airlines
Portland — Ontario
8h 52m
including layover
Find flight
from$211
*Departure and arrival times - local. Updated on February 22, 2025

Flight Information

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

Distance between San Jose and Ontario is 536 miles. Time difference between the cities is 0h. Airplanes depart 06:15 to 22:20 from 2 San Jose airports and arrive 06:15 to 22:20 to 2 Ontario airports. Average flight time is 9h 35m.

  • The fastest flight 4h 50m
  • Average flight time 9h 35m
  • The earliest flight 06:15
  • The latest flight 22:20
  • Distance 334 ml

The cheapest months to travel to Ontario are december (from 54 $), november (from 75 $), february (from 80 $).

The most expensive months are january (from 181 $), february (from 80 $), november (from 75 $).

What is the lowest airfare San Jose to Ontario?

The cheapest plane ticket found by our users is $54. This airfare is for economy class on one-way F94918 flight by Frontier Airlines for February 21, 2025 which leaves San Jose Municipal in San Jose at 11:30 am and arrives at Ontario Ontario Int. at 06:30.

Economy class
$54
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Business class
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First class
?
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Popular Airlines on the Route

The flight San Jose — Ontario is served by 4 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 20 departures per week at the price of from $ 166 . And the most expensive tickets are offered by United Airlines airline - from $ 557.

Direct flights

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

Connecting Flights

There are 29 flights with layovers on the route. The fastest connecting flight is AS2263 by Alaska Airlines takes 4h 50m and the cheapest is F94918 by Frontier Airlines for $54.

See more connecting flights

Airports

You can fly from San Jose to Ontario from 2 airports (San Jose Municipal, Reid-Hillview).

San Jose airports

  • San Jose Municipal-SJC
    from $54
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  • Reid-Hillview-RHV
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Ontario airports

  • Ontario Int.-ONT
    Find
  • International Heliport-JIO
    Find

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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