Cheap Flight Tickets from Ontario (ONT) to San Jose (SJO), Starting at $596

Good to Know: Cheapest and Fastest ONT - SJO Flights

Useful information for finding best airline tickets from Ontario International to Juan Santamaria International on your next trip.

Cheapest Round Trip Flight

$599

WN Southwest Airlines • 2 stops • 24h 15m

Dec 27 – Jan 03

The cheapest round trip flight from Ontario to San Jose (ONT-SJO-ONT) is currently $599

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Fastest Flight

15h

The fastest nonstop flight from Ontario to San Jose (ONT-SJO) takes 15h

Top Airlines Flying from Ontario to San Jose

Southwest Airlines-WN

Southwest Airlines

American Airlines, AA

American Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

Latest Flight Deals from Ontario (ONT) to San Jose (SJO)

Compare and book low fare round-trip air tickets from Ontario to San Jose. Ideal for travelers with confirmed return itineraries.

Dec 27 - Jan 03, Economy
WN
Ontario → San Jose
24h 15m
9:30 PM - 2:25 PM • 2 stops
WN
Ontario → San Jose
19h 15m
9:00 AM - 6:55 PM • 2 stops
$599
Southwest Airlines
Dec 27 - Jan 03, Economy
WN
Ontario → San Jose
24h 15m
9:30 PM - 2:25 PM • 2 stops
WN
Ontario → San Jose
20h
2:10 PM - 12:10 AM • 1 stop
$599
Southwest Airlines
Dec 27 - Jan 03, Economy
WN
Ontario → San Jose
29h 15m
6:30 PM - 2:25 PM • 2 stops
WN
Ontario → San Jose
20h
2:10 PM - 12:10 AM • 1 stop
$599
Southwest Airlines
Dec 27 - Jan 03, Economy
WN
Ontario → San Jose
29h 15m
6:30 PM - 2:25 PM • 2 stops
WN
Ontario → San Jose
21h 40m
9:00 AM - 8:00 PM • 2 stops
$599
Southwest Airlines
Dec 28 - Jan 04, Economy
WN
Ontario → San Jose
29h 15m
6:30 PM - 2:25 PM • 2 stops
WN
Ontario → San Jose
19h 15m
2:10 PM - 12:05 AM • 2 stops
$599
Southwest Airlines
Dec 28 - Jan 04, Economy
AA
Ontario → San Jose
19h 9m
10:40 PM - 12:29 PM • 1 stop
AA
Ontario → San Jose
16h 53m
12:34 AM - 8:47 AM • 1 stop
$1238
American Airlines

Fly from Ontario to San Jose with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Ontario to San Jose? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Ontario to San Jose Flights

What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to SJO?
The most popular airline flying from Ontario to San Jose are
Can I fly from ONT to SJO non-stop?
NO
Which airlines fly nonstop between Ontario and San Jose?
The non-stop flights between Ontario and San Jose are .
What’s the earliest departure time from ONT to SJO Airport?
The earliest flight leaves ONT at 5:30 am and lands in SJO - Juan Santamaria International
What are the airports in San Jose?
SJO
Can I make changes to my Ontario to San Jose flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ONT to SJO?
Read the fare rules of the Ontario to San Jose air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Ontario and San Jose?
operate flights between Ontario and San Jose
How long does a flight from Ontario to San Jose take?
It takes approximately 6 hour to fly non-stop from ONT to SJO, which is 2685.15 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to San Jose (SJO) ?
In the past couple of days, the cheapest tickets to SJO from ONT were found on WN : USD 599
Do I need a passport to fly between ONT and SJO?
Yes
What’s the latest departure time from ONT to SJO ?
The last flight leaves ONT at 10:40 pm

Ontario (ONT) to San Jose (SJO): Airport Information

Origin Airport Ontario International , Ontario, US
Destination Airport Juan Santamaria International , San Jose, CR
Distance 2685 miles

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