Lowest Prices
Uncover the best deals on Ontario to San Jose flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest ONT - SJC Flights
Useful information for finding best airline tickets from Ontario International to Norman Y. Mineta San Jose International on your next trip.
Cheapest Round Trip Flight
$408
Southwest Airlines
• 1 stop
• 14h 15m
Jul 30 – Aug 02
The cheapest round trip flight from Ontario to San Jose (ONT-SJC-ONT) is currently $408
Cheapest One way Flight
$201
United Airlines
• 1 stop
• 12h 31m
Jul 17
The cheapest one way flight from Ontario to San Jose (ONT-SJC) is currently $201
Cheapest Direct Flight
$262
Southwest Airlines
• nonstop
• 2h
Jul 30
The cheapest nonstop flight from Ontario to San Jose (ONT-SJC) is currently $262
Fastest Flight
1h 50m
The fastest nonstop flight from Ontario to San Jose (ONT-SJC) takes 1h 50m
Top Airlines Flying from Ontario to San Jose
Latest Flight Deals from Ontario (ONT) to San Jose (SJC)
Compare and book low fare round-trip air tickets from Ontario to San Jose. Ideal for travelers with confirmed return itineraries.
Jul 30 - Aug 02, Economy
Ontario → San Jose
14h 15m
12:45 PM - 9:40 PM • 1 stop
Ontario → San Jose
7h 20m
7:30 PM - 12:10 AM • 1 stop
Southwest Airlines
Jul 30 - Aug 02, Economy
Ontario → San Jose
10h 20m
5:15 AM - 11:35 AM • 1 stop
Ontario → San Jose
5h 10m
9:10 AM - 12:20 PM • 1 stop
Southwest Airlines
Jul 30 - Aug 02, Economy
Ontario → San Jose
1h 50m
6:35 PM - 7:45 PM • nonstop
Ontario → San Jose
5h 10m
9:10 AM - 12:20 PM • 1 stop
Southwest Airlines
Jul 30 - Aug 02, Economy
Ontario → San Jose
9h 5m
8:35 AM - 2:20 PM • 1 stop
Ontario → San Jose
5h 10m
9:10 AM - 12:20 PM • 1 stop
Southwest Airlines
Jul 30 - Aug 02, Economy
Ontario → San Jose
5h 40m
12:40 PM - 4:20 PM • 1 stop
Ontario → San Jose
2h
9:55 PM - 11:15 PM • nonstop
Southwest Airlines
Explore competitive one-way airfare options for ONT - SJC flights. Best suited for flexible or open-ended travel plans.
Flying to San Jose soon? We've surfaced some of the most affordable last-minute flights from Ontario to San Jose, ideal for urgent plans or spontaneous trips.
Looking for the fastest way to San Jose? These direct flight options from ONT to SJC offer both convenience and value—no layovers, just straight to your destination.
Jul 30 - Aug 02, Economy
Ontario → San Jose
2h
7:55 PM - 9:15 PM • nonstop
Ontario → San Jose
2h 5m
8:23 PM - 9:48 PM • nonstop
Southwest Airlines
Jul 30 - Aug 02, Economy
Ontario → San Jose
1h 50m
3:15 PM - 4:25 PM • nonstop
Ontario → San Jose
2h 5m
8:23 PM - 9:48 PM • nonstop
Southwest Airlines
Jul 30 - Aug 02, Economy
Ontario → San Jose
1h 50m
10:50 AM - 12:00 PM • nonstop
Ontario → San Jose
2h
6:00 AM - 7:20 AM • nonstop
Southwest Airlines
Jul 30 - Aug 02, Economy
Ontario → San Jose
2h
6:30 AM - 7:50 AM • nonstop
Ontario → San Jose
2h
9:55 PM - 11:15 PM • nonstop
Southwest Airlines
Jul 30 - Aug 02, Economy
Ontario → San Jose
1h 50m
6:35 PM - 7:45 PM • nonstop
Ontario → San Jose
2h
9:55 PM - 11:15 PM • nonstop
Southwest Airlines
FAQs on Ontario to San Jose Flights
What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to SJC?
The most popular airline flying from Ontario to San Jose are
Can I fly from ONT to SJC non-stop?
Yes, you can fly ONT to SJC non-stop on
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 SJC Airport?
The earliest flight leaves ONT at 5:15 am and lands in SJC - Norman Y. Mineta San Jose International
What are the airports in San Jose?
SJC
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 SJC?
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 1 hour to fly non-stop from ONT to SJC, which is 333.38 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to San Jose (SJC) ?
In the past couple of days, the cheapest tickets to SJC from ONT were found on AS : USD 365
Do I need a passport to fly between ONT and SJC?
No
What’s the latest departure time from ONT to SJC ?
The last flight leaves ONT at 7:55 pm
Ontario (ONT) to San Jose (SJC): Airport Information
| Origin Airport | Ontario International , Ontario, US |
| Destination Airport | Norman Y. Mineta San Jose International , San Jose, US |
| Distance | 333 miles |
More Flight Options for Ontario (ONT) and San Jose (SJC)
Flights from Ontario (ONT)
to Las Vegas (LAS)
Flights from Ontario (ONT)
to Las Vegas (LAS)
Flights from Ontario (ONT)
to Seattle (SEA)
Flights from Ontario (ONT)
to Seattle (SEA)
Flights from Ontario (ONT)
to St Louis (STL)
Flights from Ontario (ONT)
to St Louis (STL)
Flights from Ontario (ONT)
to Phoenix (PHX)
Flights from Ontario (ONT)
to Phoenix (PHX)
Flights from Ontario (ONT)
to Portland (PDX)
Flights from Ontario (ONT)
to Portland (PDX)
Flights from Ontario (ONT)
to Nashville (BNA)
Flights from Ontario (ONT)
to Nashville (BNA)
Flights from Ontario (ONT)
to San Francisco (SFO)
Flights from Ontario (ONT)
to San Francisco (SFO)
Flights from Ontario (ONT)
to Pasco (PSC)
Flights from Ontario (ONT)
to Guadalajara (GDL)
Flights from Ontario (ONT)
to Guadalajara (GDL)
Flights from Ontario (ONT)
to Toronto (YYZ)
Flights from Ontario (ONT)
to Miami (MIA)
Flights from Ontario (ONT)
to Miami (MIA)
Flights from Seattle (SEA)
to San Jose (SJC)
Flights from Portland (PDX)
to San Jose (SJC)
Flights from Denver (DEN)
to San Jose (SJC)
Flights from Honolulu (HNL)
to San Jose (SJC)
Flights from Atlanta (ATL)
to San Jose (SJC)
Flights from Burbank (BUR)
to San Jose (SJC)
Flights from Los Angeles (LAX)
to San Jose (SJC)
Flights from Baltimore (BWI)
to San Jose (SJC)
Flights from Baltimore (BWI)
to San Jose (SJC)
Flights from Santa Ana (SNA)
to San Jose (SJC)
Flights from Phoenix (PHX)
to San Jose (SJC)
Flights from Ontario (ONT)
to San Jose (SJC)
Flights from Dallas (DFW)
to San Jose (SJC)
Flights from Dallas (DAL)
to San Jose (SJC)
Flights from Oakland (OAK)
to San Jose (SJC)
Flights from Chicago (ORD)
to San Jose (SJC)
Flights from Chicago (MDW)
to San Jose (SJC)
Flights from Las Vegas (LAS)
to San Jose (SJC)
Flights from San Diego (SAN)
to San Jose (SJC)
Flights from Miami (MIA)
to San Jose (SJC)
Cheap flights to North America (NA)
Cheap flights to United States (US)
Cheap flights to California (US-CA)
Cheap flights from North America (NA)
Cheap flights from United States (US)
Cheap flights from California (US-CA)
Flights to Ontario (ONT)
Flights to Ontario (ONT)
Flights to San Jose (SJC)
Flights from Ontario (ONT)
Flights from San Jose (SJC)
Flights from San Jose (SJC)
to Ontario (ONT)
Why Fareleaders for ONT to SJC Plane Tickets
New Deals Everyday
Get the best prices on ONT to SJC flights—we update our fares daily so you never miss a saving.
No Service Fees
Compare hundreds of Ontario to San Jose flights and secure the best deals—we never add any service fees.