Cheap Flights from Ontario, CA to San Jose from $148

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On Cheapflightsplus.com you will find 273 connecting flights from Ontario to San Jose. You can compare airfare deals from 7 airlines and multiple travel sites from $148, 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: $148 (one-way), $254 (round-trip).

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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 $148. Take a look at the list of flights with layovers from Ontario to San Jose from $148. There’re no direct flights. The fastest connecting flight – 8h 15m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $162 Find flight	06:04 Ontario Ontario Int.	19:37 San Jose Juan Santamaria Intl	12h 33m layover 5h 39m - Houston	United Airlines	UA1936 UA1280
from $162 Find flight	06:00 Ontario Ontario Int.	22:39 San Jose Juan Santamaria Intl	15h 39m layover 8h 45m - Houston	United Airlines	UA397 UA1055
from $165 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 $165 Find flight	18:50 Ontario Ontario Int.	07:15+1 день San Jose Juan Santamaria Intl	11h 25m layover 3h 31m - San Francisco	United Airlines	UA393 UA2312
from $165 Find flight	18:39 Ontario Ontario Int.	07:15+1 день San Jose Juan Santamaria Intl	11h 36m layover 3h 24m - San Francisco	United Airlines	UA5345 UA2312
from $165 Find flight	13:42 Ontario Ontario Int.	07:15+1 день San Jose Juan Santamaria Intl	16h 33m layover 8h 39m - San Francisco	United Airlines	UA2332 UA2312
from $214 Find flight	13:35 Ontario Ontario Int.	07:15+1 день San Jose Juan Santamaria Intl	16h 40m layover 8h 46m - San Francisco	United Airlines	UA1840 UA2312
from $148 Find flight	21:41 Ontario Ontario Int.	23:30+3 дня San Jose Juan Santamaria Intl	48h 49m layover 20h 43m - San Jose 19h 9m - Los Angeles	Frontier Airlines	F92677 AS2109 AS1352
from $159 Find flight	07:00 Ontario Ontario Int.	23:30+1 день San Jose Juan Santamaria Intl	15h 30m layover 4h 30m - Las Vegas 2h 24m - Los Angeles	Frontier Airlines	F92232 AS2014 AS1352
from $159 Find flight	12:48 Ontario Ontario Int.	12:40+1 день San Jose Juan Santamaria Intl	22h 52m layover 11h 1m - Houston 2h 35m - Orlando	Frontier Airlines	F93132 NK1571 NK1309
from $162 Find flight	19:22 Ontario Ontario Int.	23:30+3 дня San Jose Juan Santamaria Intl	51h 8m layover 23h 23m - Las Vegas 19h 2m - Los Angeles	Frontier Airlines	F94758 AS3414 AS1352
from $163 Find flight	18:39 Ontario Ontario Int.	10:11+1 день San Jose Juan Santamaria Intl	14h 32m layover 3h 53m - San Francisco 1h 40m - Houston	United Airlines	UA2042 UA505 UA2448
from $163 Find flight	13:34 Ontario Ontario Int.	10:11+1 день San Jose Juan Santamaria Intl	19h 37m layover 0h 53m - Denver 10h 11m - Houston	United Airlines	UA1942 UA2619 UA2448
from $163 Find flight	13:19 Ontario Ontario Int.	10:11+1 день San Jose Juan Santamaria Intl	19h 52m layover 1h 29m - San Francisco 9h 11m - Houston	United Airlines	UA2332 UA776 UA2448
from $165 Find flight	18:39 Ontario Ontario Int.	10:11+1 день San Jose Juan Santamaria Intl	14h 32m layover 3h 49m - San Francisco 1h 29m - Houston	United Airlines	UA5345 UA505 UA2448
from $165 Find flight	18:39 Ontario Ontario Int.	10:11+1 день San Jose Juan Santamaria Intl	14h 32m layover 3h 53m - San Francisco 1h 40m - Houston	United Airlines	UA1603 UA505 UA2448

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on July 03, 2025

Flight Schedule Ontario (California) to San Jose

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	Flight Details	Flight Duration	Price
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$162
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$162
09:35 — 07:15 +1 day	09:35 — 10:54 UA1585 United Airlines Ontario — San Francisco 12h 46m stop 23:40 — 07:15 UA2312 United Airlines San Francisco — San Jose	20h 40m including layover	Find flight from$219
18:39 — 07:15 +1 day	18:39 — 20:06 UA2042 United Airlines Ontario — San Francisco 3h 28m stop 23:34 — 07:15 UA2312 United Airlines San Francisco — San Jose	11h 36m including layover	Find flight from$163
23:25 — 11:15 +1 day	23:25 — 05:05 AV531 Avianca Ontario — San Salvador 5h stop 10:05 — 11:15 AV613 Avianca San Salvador — San Jose	10h 50m including layover	Find flight from$165
23:25 — 11:15 +1 day	22:30 — 05:05 AV531 Avianca Ontario — San Salvador 5h stop 10:15 — 11:25 AV611 Avianca San Salvador — San Jose	10h 50m including layover	Find flight from$165
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$159
07:00 — 23:30 +2 days	07:00 — 08:11 F92232 Frontier Airlines Ontario — Las Vegas 11h 47m stop 19:58 — 21:24 AS3414 Alaska Airlines Las Vegas — Los Angeles 19h 2m stop 16:26 — 23:30 AS1352 Alaska Airlines Los Angeles — San Jose	39h 30m including layover	Find flight from$171
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$159
12:48 — 10:29 +1 day	12:40 — 18:11 F93132 Frontier Airlines Ontario — Houston 2h 37m stop 20:42 — 00:21 F94978 Frontier Airlines Houston — Orlando 8h 28m stop 09:08 — 10:27 NK1309 Spirit Airlines Orlando — San Jose	20h 41m including layover	Find flight from$170
13:19 — 10:11 +1 day	13:19 — 14:46 UA2332 United Airlines Ontario — San Francisco 1h 29m stop 16:15 — 22:14 UA776 United Airlines San Francisco — Houston 9h 11m stop 07:25 — 10:11 UA2448 United Airlines Houston — San Jose	19h 52m including layover	Find flight from$163
13:34 — 10:11 +1 day	13:34 — 16:52 UA1942 United Airlines Ontario — Denver 53m stop 17:45 — 21:14 UA2619 United Airlines Denver — Houston 10h 11m stop 07:25 — 10:11 UA2448 United Airlines Houston — San Jose	19h 37m including layover	Find flight from$163
17:14 — 23:30 +2 days	17:13 — 18:27 F91358 Frontier Airlines Ontario — Las Vegas 18h 13m stop 12:41 — 14:02 AS2014 Alaska Airlines Las Vegas — Los Angeles 2h 24m stop 16:26 — 23:30 AS1352 Alaska Airlines Los Angeles — San Jose	29h 16m including layover	Find flight from$171
17:14 — 23:30 +2 days	17:14 — 18:28 F91358 Frontier Airlines Ontario — Las Vegas 2h 12m stop 20:40 — 22:00 AS2045 Alaska Airlines Las Vegas — Los Angeles 18h 26m stop 16:26 — 23:30 AS1352 Alaska Airlines Los Angeles — San Jose	29h 16m including layover	Find flight from$180
18:39 — 10:11 +1 day	18:39 — 20:06 UA2042 United Airlines Ontario — San Francisco 3h 53m stop 23:59 — 05:45 UA505 United Airlines San Francisco — Houston 1h 40m stop 07:25 — 10:11 UA2448 United Airlines Houston — San Jose	14h 32m including layover	Find flight from$163
19:22 — 23:30 +3 days	19:22 — 20:35 F94758 Frontier Airlines Ontario — Las Vegas 23h 23m stop 19:58 — 21:24 AS3414 Alaska Airlines Las Vegas — Los Angeles 19h 2m stop 16:26 — 23:30 AS1352 Alaska Airlines Los Angeles — San Jose	51h 8m including layover	Find flight from$162
19:22 — 23:30 +2 days	19:37 — 20:39 F94758 Frontier Airlines Ontario — Las Vegas 16h 6m 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	27h 8m including layover	Find flight from$168
20:09 — 12:40 +1 day	20:09 — 01:24 F92924 Frontier Airlines Ontario — Dallas 3h 51m stop 05:15 — 09:02 NK504 Spirit Airlines Dallas — Orlando 2h 23m stop 11:25 — 12:40 NK1309 Spirit Airlines Orlando — San Jose	15h 31m including layover	Find flight from$189
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$148
21:41 — 23:30 +2 days	21:41 — 23:14 F92677 Frontier Airlines Ontario — San Jose 13h 47m stop 13:02 — 14:23 AS2167 Alaska Airlines San Jose — Los Angeles 2h 3m stop 16:26 — 23:30 AS1352 Alaska Airlines Los Angeles — San Jose	24h 49m including layover	Find flight from$175

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on July 3, 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 00:59 to 23:25 from 2 Ontario airports and arrive 00:59 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 00:59
The latest flight 23:25
Distance 2687 ml

The cheapest months to travel to San Jose are august (from 198 $), may (from 200 $), october (from 217 $).

The most expensive months are december (from 834 $), november (from 541 $), february (from 280 $).

What is the lowest airfare Ontario to San Jose?

The cheapest plane ticket found by our users is $148. This airfare is for economy class on one-way F92677 flight by Frontier Airlines for August 8, 2025 which leaves Ontario Int. in Ontario at 21:41 am and arrives at San Jose Juan Santamaria Intl at 23:30.

Economy class

$148

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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 - 15 departures per week at the price of from $ 465 . And the most expensive tickets are offered by Avianca airline - from $ 1389.

Direct flights

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

Connecting Flights

There are 273 flights with layovers on the route. The fastest connecting flight is AV531 by Avianca takes 8h 15m and the cheapest is F92677 by Frontier Airlines for $148.

AS - Alaska Airlines

from $194

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AC - Air Canada

from $465

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F9 - Frontier Airlines

from $148

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AV - Avianca

from $165

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HA - Hawaiian Airlines

from $219

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Y4 - Volaris

from $237

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UA - United Airlines

from $162

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Airports

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

Ontario airports

Ontario Int.-ONT

from $148
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International Heliport-JIO

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San Jose airports

Juan Santamaria Intl-SJO

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Tobias Bolanos Intl-SYQ

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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.

Ontario — Phoenix

from $56

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Ontario — Denver

from $65

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Ontario — Austin

from $67

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Ontario — Miami

from $62

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Ontario — Tucson

from $80

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Ontario — Las Vegas

from $63

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Ontario — Seattle

from $65

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Ontario — Boise

from $70

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Ontario — Chicago

from $78

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Ontario — Philadelphia

from $62

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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.

Ontario — London

from $62

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Ontario — San Jose

from $61

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Ontario — Guadalajara

from $70

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Ontario — Cancun

from $74

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How to book a plane ticket yourself?

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