$558 Cheap Flights from San Jose to Ontario (SJI to ONT)

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Cheap flight deals from San Jose to Ontario Starting at $558

Whether you’re going for a one-way or round-trip to Ontario, we’ve got you covered! Check out these different flight options from San Jose below.

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from San Jose to Ontario?

Price trend charts are a great way of tracking how much your flights cost in the lead up to departure and can help you choose when to book your tickets. See how prices to Ontario from San Jose have changed and are set to move below.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Find cheap airlines flights from San Jose to Ontario

Which airline provides the cheapest flights from San Jose to Ontario? Discover the option that best suits your travel needs before embarking on your journey.

Cebgo

From $558

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Alternative Cheap Routes from San Jose to Ontario

Searching for potential routes that might be cheaper and faster? There are a few alternative ways to get to Ontario from San Jose which could help you save money and time.

Cheapest
SJI
08:10 am
24h 40m
2 transfer
ONT
04:50 pm
San Jose Airport Mindoro - Ontario International Airport
Tue, Feb 4Cebgo
$558
SJI
08:10 am
24h 40m
2 transfer
ONT
04:50 pm
San Jose Airport Mindoro - Ontario International Airport
Tue, Feb 4Cebgo
$558
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Frequently Asked Questions

When are flight tickets from San Jose (SJI) to Ontario (ONT) the cheapest?
Airlines adjust prices for flights from San Jose to Ontario based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much do flights from San Jose (SJI) to Ontario (ONT) cost?
According to Trip.com's data, the lowest price is around $584.

How to find a cheap flight from San Jose to Ontario

If you leave it until the last minute and forget to check some of the key information when booking tickets, prices can often end up skyrocketing. Below, you can find our top tips for getting the best value flights – from changing dates to chasing deals, there are plenty ways to keep your next trip affordable.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

Save up to £10 per person when booking your flights on Trip.com