Cheap flights from Ontario to San Jose (ONT - SJC)

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The best prices from Ontario to San Jose are usually found in July or April, booked 53 days in advance, depart on a Thursday or Wednesday and return on a Friday

How to find the cheapest flight from
Ontario (ONT) to San Jose (SJC)

All the information you need to plan the best ONT to SJC flight in 2022: compare Ontario to San Jose flight prices with the expected peak season, weather and rainfall in San Jose.
ONT - SJC
Price
$77 - $265
SJC
Temperature
50 - 69.8 °F
SJC
Rainfall
0 - 3.1 inches

Popular in

November

High demand for flights, 29% potential price rise

Cheapest in

July

Best time to find cheap flights, 59% potential price drop

Average price

$245

Average for round-trip flights in May 2022

Round-trip from

$77

From Ontario to San Jose

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from Ontario to San Jose?

To save up to 106% on this flight, we recommend booking at least 39 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Ontario to San Jose from $156 1-2 weeks out and tickets from $237 for flights departing within the next 72 hours.

What is the cheapest month to fly from Ontario to San Jose?

Our data shows that April tends to be the cheapest month to fly to San Jose from Ontario. Users have commonly found prices around $125 for the month, but tickets can be as low as $48. Due to multiple factors, prepare for potentially higher prices in November.

What is the cheapest day to fly round-trip from Ontario to San Jose?

Saturday flights are found to be more expensive to fly from Ontario to San Jose. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Jose.

When is the cheapest time to fly from Ontario to San Jose (ONT - SJC)?

It’s optimal to fly from Ontario to San Jose in the afternoon. By choosing this option you can save up to 48% on the cost of your flight, compared to a flight at noon.

Cheap flights from Ontario to San Jose in May, June 2022

The best prices found for ONT to SJC flights for May, June
2 Jun - 7 Jun
$399pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
SJC
San Jose
SJC
San Jose
Multiple Airlines
   
2 STOPS
ONT
Ontario
6 Jun - 8 Jun
$467pp
ONT
Ontario
American Airlines
 
1 STOP
SJC
San Jose
SJC
San Jose
American Airlines
 
1 STOP
ONT
Ontario
24 May - 28 May
$469pp
ONT
Ontario
American Airlines
 
1 STOP
SJC
San Jose
SJC
San Jose
American Airlines
   
2 STOPS
ONT
Ontario

Ontario to San Jose 2022 flight deals

Cheap flights to San Jose from Ontario found for this year
29 Oct - 15 Nov
$282pp
ONT
Ontario
American Airlines
 
1 STOP
SJC
San Jose
SJC
San Jose
American Airlines
 
1 STOP
ONT
Ontario
6 Dec - 9 Dec
$296pp
ONT
Ontario
American Airlines
 
1 STOP
SJC
San Jose
SJC
San Jose
American Airlines
 
1 STOP
ONT
Ontario
29 Oct - 16 Nov
$306pp
ONT
Ontario
American Airlines
 
1 STOP
SJC
San Jose
SJC
San Jose
American Airlines
 
1 STOP
ONT
Ontario

Last minute flights from Ontario to San Jose

Late deals on round-trip flights to San Jose from Ontario, departing today and this week
24 May - 28 May
$469pp
ONT
Ontario
American Airlines
 
1 STOP
SJC
San Jose
SJC
San Jose
American Airlines
   
2 STOPS
ONT
Ontario
22 May - 23 May
$515pp
ONT
Ontario
American Airlines
 
1 STOP
SJC
San Jose
SJC
San Jose
American Airlines
 
1 STOP
ONT
Ontario
25 May - 1 Jun
$528pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
SJC
San Jose
SJC
San Jose
Alaska Airlines
 
1 STOP
ONT
Ontario

One-way flights to San Jose from Ontario

The cheapest one-way flights from Ontario to San Jose
2:00 am - 6:19 pm
Alaska Airlines
1 Stop
16h 19m
ONT - SJC
Alaska Airlines
9:00 am - 5:03 am
American Airlines
2 Stops
20h 03m
ONT - SJC
American Airlines
3:50 am - 6:51 pm
Multiple Airlines
2 Stops
15h 01m
ONT - SJC
Multiple Airlines
$267
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Ontario</span> to <span class="emphasized">San Jose</span> flights.

Flight FAQs

From Ontario to San Jose

What airports do I use to fly from Ontario to San Jose?

San Jose is the airport most travelers will use when flying to San Jose from Ontario. Booking flights from Ontario (ONT) to San Jose (SJC) should be relatively easy as there are 4 daily flights to San Jose from 9 different airlines. 4h 39m is how long a flight from Ontario to San Jose will take if you book a nonstop flight.

Which airlines flying from Ontario to San Jose have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like JetBlue, American Airlines, and Frontier flying from Ontario to San Jose have implemented new flexible cancellation policies.

Are there last-minute flights available from Ontario to San Jose for under $500?

There are currently 20+ open flights from Ontario to San Jose within the next 7 days for less than $500.

How popular is this Ontario to San Jose flight route?

The Ontario to San Jose flight path was viewed by 12 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What are the cheapest airlines to fly from Ontario to San Jose one-way?

One-way options have recently been found by users for as low as $113 on American Airlines. Other airlines that offer cheap prices include Alaska Airlines from $188 and Delta from $198 one-way.

What are the cheapest flights from Ontario to San Jose?

Looking for the cheapest flight from Ontario to San Jose? While on average our users pay $137, our data indicates the cheapest price to be $17. The most popular route (Ontario - San Jose), is priced around $364.

What are the most popular airlines that fly from Ontario to San Jose?

When booking a flight from Ontario to San Jose, you may want to consider flying on American Airlines, Alaska Airlines or JetBlue as they are the most popular for this route.

COVID Restrictions

View COVID Travel Restrictions for San Jose, CA

Do I need a COVID test to fly to San Jose from Ontario?

Information is based on travel restrictions for travel to San Jose within the United States

Most visitors from Ontario need to provide a negative COVID-19 test result and/or quarantine to enter San Jose.

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to San Jose.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering San Jose.

Do I need a test to fly back to Ontario from San Jose?

Returning to Ontario from San Jose

COVID-19 testing requirements
Visitors from San Jose must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Ontario.

Quarantine requirements
Visitors from San Jose are not required to quarantine after entering Ontario.

Hide COVID Travel Restrictions for San Jose, CA

Alternative routes for Ontario to San Jose

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for San Jose

Things to know before you go - useful duration and weather info for your trip from Ontario to San Jose.
Average temperature for May in San Jose
84.2 °F
Avg rainfall for May in San Jose
6.7 ″

Airports servicing Ontario

Airports servicing San Jose

Top 6 airlines flying from Ontario to San Jose

The chart below displays the airlines Cheapflights users traveling from Ontario to San Jose choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$40 $98 No cancel fee 62%
Spirit Airlines
$76 $153 No cancel fee 65%
American Airlines
$79 $390 No cancel fee 71%
JetBlue
$107 $211 No cancel fee 62%
United Airlines
$139 $232 No cancel fee 69%
Alaska Airlines
$141 $313 No cancel fee 75%

Hourly flight availability from Ontario to San Jose

See what time of day planes typically take off from Ontario towards San Jose.
Afternoon Noon to 6 PM 40% of ONT to SJC departures
Early morning Midnight to 6 AM 20% of ONT to SJC departures
Morning 6 AM to noon 20% of ONT to SJC departures
Evening 6 PM to midnight 20% of ONT to SJC departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Ontario to San Jose
See how many times per day planes take to the skies headed from Ontario to San Jose.
Sunday
5 daily flights
Monday
5 daily flights
Tuesday
5 daily flights
Wednesday
5 daily flights
Thursday
5 daily flights
Friday
5 daily flights
Saturday
0 flights
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