Cheap flights from San Jose International to Ontario International

Compare San Jose International to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

Flight deals from San Jose International to Ontario International

Looking for a cheap last-minute deal or the best round-trip flight from San Jose International to Ontario International? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from San Jose International to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Jose International to Ontario International flights are currently cheapest in November.

Direct flights from San Jose International to Ontario International

San Jose International to Ontario International: Alternative routes

Compare routes from San Jose International to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

San Jose to Ontario: Flight information

The things to know before you go.
Cheapest flight found$94
Cheapest month to flyNovember
Average flight time1 hr, 17 mins
Most popular airlineSouthwest Airlines
Average flights per week33

Finding cheap flights from San Jose International to Ontario International: Frequently asked questions

The best price we found for a round-trip flight from San Jose International to Ontario International is $94. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 17 minutes is the average flight time from San Jose International to Ontario International.
Southwest Airlines flies direct from San Jose International to Ontario International.
There are 33 flights per week flying from San Jose International to Ontario International, as of October 2024.
The cheapest month to fly from San Jose International to Ontario International is usually October 2024.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Jose International Airport to Ontario International Airport on Monday, November 18, 2024.
Yes – the average flight time is 1 hour and 17 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines and Southwest Airlines offer the cheapest flight tickets to Ontario International.

Traveling from Norman Y. Mineta San Jose International Airport (SJC) to Ontario International Airport (ONT): what you need to know

  • A direct flight from Norman Y. Mineta San Jose International Airport to Ontario International Airport takes 1 hour 16 minutes (on average). Ontario's timezone is UTC-7 — identical to San Jose.

  • There are 19 flights from Norman Y. Mineta San Jose International Airport to Ontario International Airport every week. Catch the 05:45 flight if you want to leave as soon as possible. If you'd like to get the most out of your day, the last flight from SJC to ONT is 21:50.

  • Delays at security and check-in are likely if you're heading away during high season, so give yourself some extra breathing space. A good rule of thumb for peak periods? Arrive up to four hours ahead for international flights and two hours for domestic departures.

  • If you'd like a stopover for your flight from Norman Y. Mineta San Jose International Airport to Ontario International Airport, simply uncheck 'Direct flights only' and explore your options. These are the top stopovers between SJC and ONT:

    • Phoenix Sky Harbor International Airport

    • Harry Reid Airport (formerly McCarran Airport)

    • Portland International Airport

How to find the cheapest flights from Norman Y. Mineta San Jose International Airport (SJC) to Ontario International Airport (ONT)

  • The lowest price we've found for a one-way ticket from Norman Y. Mineta San Jose International Airport to Ontario International Airport is $56. For a return flight on this route, the best price is $94. Depending on the availability and when you book, these fares may change.

  • To score cheap tickets from SJC to ONT, reserve your trip 10 months ahead of the departure date.

  • Schedule your trip for June. That's the cheapest month for tickets from Norman Y. Mineta San Jose International Airport to Ontario International Airport. If you have flexibility with your dates, try out the 'Whole month' tool to find the lowest price across every month.

  • Log into your online account or use the app to set up a Price Alert. We'll get in touch straight away if there's a cheaper deal on this route. It's easy to do, and it'll save you from searching for cheap tickets from SJC to ONT every day.

  • Tailor your flights with filters. Select your arrival and departure times, total journey duration and airlines. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Norman Y. Mineta San Jose International Airport to Ontario International Airport.

Handy information about Norman Y. Mineta San Jose International Airport (SJC)

  • Norman Y. Mineta San Jose International Airport is about 6 kilometers from central San Jose. If you're catching a cab, ride-sharing or driving from the center, it'll take 12 minutes or so to get there, depending on traffic. If you're taking public transport, expect the travel time to be approximately 44 minutes.

  • Booked an early flight from Norman Y. Mineta San Jose International Airport to Ontario International Airport? Avoid rushing to the airport (and catch some extra z's) by picking one of these hotels close to SJC:

Arriving at Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • From Ontario International Airport, Ontario is approximately 6 kilometers away. It takes around 10 minutes to reach the center driving.

  • Getting there on public transport takes roughly 1 hour and 28 minutes.

When to fly to Ontario International Airport (ONT)

  • It's time to choose your dates for your flight from Norman Y. Mineta San Jose International Airport to Ontario International Airport. August is the most popular month to visit Ontario. If you prefer a more relaxed vibe, go in May.

  • When booking your flight from Norman Y. Mineta San Jose International Airport to Ontario International Airport, consider the kind of weather you like. August is the warmest month in Ontario, with the temperature ranging from 15ºC to 35ºC.

  • January has average temperatures of between 4ºC and 23ºC. Look for cheap tickets from SJC to ONT around that time if you want to travel when it's cooler.

More about Ontario

Complete your Ontario trip with hotels and a car rental

  • You've booked a cheap ticket to Ontario International Airport — next up is finding a great place to stay, and perhaps even your own set of wheels. We've compared prices across hundreds of companies to bring you the best hotels and car rental deals in Ontario.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.