Search & Compare - Ontario to San Jose Flights & Tickets

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Find Cheap Flights from Los Angeles to San Jose ONT SJO

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.

Recent airfare deals on Ontario to San Jose

Southwest Airlines  WN
Southwest Airlines
Ontario
2025-06-17
San Jose
USD 159

One-way WN fare found on 2025-06-05
Southwest Airlines  WN
Southwest Airlines
Ontario
2025-06-17
San Jose
USD 159

One-way WN fare found on 2025-06-05
Southwest Airlines  WN
Southwest Airlines
Ontario
2025-06-17
San Jose
USD 179

One-way WN fare found on 2025-06-05
Southwest Airlines  WN
Southwest Airlines
Ontario
2025-06-17
San Jose
USD 180

One-way WN fare found on 2025-06-05
Southwest Airlines  WN
Southwest Airlines
Ontario
2025-06-17
San Jose
USD 180

One-way WN fare found on 2025-06-05
Southwest Airlines  WN
Southwest Airlines
Ontario
2025-06-17
San Jose
USD 181

One-way WN fare found on 2025-06-05
United Airlines  UA
United Airlines
Ontario
2025-06-17
San Jose
USD 370

One-way UA fare found on 2025-06-05
United Airlines  UA
United Airlines
Ontario
2025-06-17
San Jose
USD 444

One-way UA fare found on 2025-06-05
American Airlines  AA
American Airlines
Ontario
2025-06-17
San Jose
USD 707

One-way AA fare found on 2025-06-05
American Airlines  AA
American Airlines
Ontario
2025-06-17
San Jose
USD 738

One-way AA fare found on 2025-06-05


*Prices are per person and are for e-tickets and include all taxes & fees in USD.
*Fareleaders always attempts to get accurate pricing, however, prices are not guaranteed.
*Fareleaders is not seller, we aggregate tones of data for you from other online travel agencies and external sources.

Facts to know while booking flights from Ontario to San Jose

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 American Airlines, JetBlue Airways, Southwest Airlines, United Airlines, Delta Airlines
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 12:59 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?
Oneworld, NULL, NULL, Star Alliance, SkyTeam 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 American Airlines : USD 738
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 11:59 pm

Flights from Ontario to San Jose

Origin AirportOntario International , Ontario, US
Destination AirportJuan Santamaria International , San Jose, CR
Served by AirlinesAmerican Airlines, JetBlue Airways, Southwest Airlines, United Airlines, Delta Airlines
Lowest PriceAmerican Airlines : USD 738
Distance2685 miles

Hotels in San Jose

Nayara Springs  
Arenal Volcano National Park , La Fortuna

Tabacon Grand Spa Thermal Resort  
13 km oeste del centro,de la Fortuna de San Carlos , La Fortuna

Oxygen Jungle Villas  
1.5 KM Noroeste del catarata,4x4 vehicle ONLY , Uvita

DoubleTree by Hilton Cariari - San Jose Costa Rica  
Autopista Grl. Canas, Cruce San Antonio,San Antonio Belen Intersection , Ciudad Cariari

Wyndham San Jose Herradura Hotel & Convention Center  
Autopista General Canas,3 Miles South of Intl Airport , Ciudad Cariari ,71880 1000

Airlines Flying from Ontario International

Popular Routes

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