Cheap flights from San Jose to Ontario
From 108 USD — compare hundreds of airlines
Live fares from 100+ sites — free, with no hidden fees.
About this route
Compare flights from San Jose to Ontario, a about 530 km route (around 1h 10m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as Southwest Airlines operate this route.
How to get the best price
Airlines on this route
FAQ
What's the cheapest month to fly San Jose to Ontario?
Prices vary by season; use the price calendar to find the cheapest month.
How long is the flight from San Jose to Ontario?
A nonstop flight takes about 1h 10m and covers around 530 km. Connecting itineraries take longer.
Are there direct flights from San Jose to Ontario?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from San Jose to Ontario?
Southwest Airlines operate this route, among others. Compare them all in the results.
When should I book San Jose–Ontario flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.
Compare your dates in seconds
San Jose → Ontario · Live fares from 100+ sites — free, with no hidden fees.