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Flights from San Jose to Ontario
There are no direct flights from San Jose to Ontario. The easiest way is one stop via Denver or Houston, about 9h 01m door to door.
No direct flights · 6 connection options From 8h 19m
San Jose to Ontario at a glance
Fastest journey8h 19mEstimated
Nonstop flightsNoneConnect via Denver or Houston
Best ways to fly from San Jose to Ontario
Ranked by how easy the connection is: one airline or alliance first (bags and connection protected), then the quickest self-transfer options.
1Search
SJO Denver (DEN) ONT
Leg 1: Southwest Airlines, United Airlines · Leg 2: Frontier Airlines, Southwest Airlines, United Airlines
4Search
SJO San Francisco (SFO) ONT
Leg 1: United Airlines · Leg 2: Frontier Airlines, United Airlines
Connections are computed from flights actually flown over the last 8 weeks, with at least 45 minutes to change on one airline and 2 hours on separate tickets. Times are local. The search shows live itineraries and exact times.
Good to know
- Distance
- 4,341 km2,696 miles
- Journey time
- 8h 19mestimate
- Time difference
- -2hOntario vs San Jose
- Currency in Ontario
- USD
- Airports
- SJO → ONT
Flights from San Jose to Ontario: questions answered
Are there direct flights from San Jose to Ontario?
No. There is no nonstop service, so you will connect, most easily in Denver, Houston and Dallas. Some connections are on one airline or alliance, so your bags and connection are protected on a single ticket.
How long is the flight from San Jose to Ontario?
With one connection the journey usually takes around 8h 19m, depending on the layover. The straight-line distance is 4,341 km.
Where do you change planes between San Jose and Ontario?
The best connecting points are Denver (DEN), Houston (IAH), Dallas (DFW) and San Francisco (SFO). Southwest Airlines flies both legs via Denver, so you can book it as one ticket.
Which airports serve San Jose and Ontario?
San Jose: Juan Santamaría International Airport (SJO). Ontario: Ontario International Airport (ONT).
What is the time difference between San Jose and Ontario?
Ontario is 2 hours behind San Jose.





