￥18,460 Cheap Flights from Ontario (ONT) to San Jose (SJC)

View ￥18,460 flight on Fri, Feb 6, 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC)

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Cheap Flights from Ontario to San Jose (ONT-SJC)

Prices were available within the past 7 days and start at ￥18,460 for one-way flights and ￥29,230 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Jan 22 - Tue, Jan 27
ONT
Ontario
SJC
San Jose
￥29,230 Roundtrip, found 5 days ago
￥29,230
Roundtrip
found 5 days ago
Select Delta flight, departing Thu, Jan 22 from Ontario to San Jose, returning Tue, Jan 27, priced at ￥29,230 found 5 days ago
Delta
Thu, Jan 22 - Tue, Jan 27
ONT
Ontario
SJC
San Jose
￥37,180 Roundtrip, found 5 days ago
￥37,180
Roundtrip
found 5 days ago
Select Delta flight, departing Thu, Jan 22 from Ontario to San Jose, returning Tue, Jan 27, priced at ￥37,180 found 5 days ago
Alaska Airlines
Thu, Jan 22 - Tue, Jan 27
ONT
Ontario
SJC
San Jose
￥41,700 Roundtrip, found 5 days ago
￥41,700
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Jan 22 from Ontario to San Jose, returning Tue, Jan 27, priced at ￥41,700 found 5 days ago
Alaska Airlines
Thu, Jan 22 - Tue, Jan 27
ONT
Ontario
SJC
San Jose
￥42,420 Roundtrip, found 5 days ago
￥42,420
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Jan 22 from Ontario to San Jose, returning Tue, Jan 27, priced at ￥42,420 found 5 days ago
United
Wed, Feb 11 - Wed, Feb 18
ONT
Ontario
SJC
San Jose
￥43,250 Roundtrip, found 9 hours ago
￥43,250
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Feb 11 from Ontario to San Jose, returning Wed, Feb 18, priced at ￥43,250 found 9 hours ago
American Airlines
Thu, Jan 22 - Tue, Jan 27
ONT
Ontario
SJC
San Jose
￥44,060 Roundtrip, found 5 days ago
￥44,060
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Jan 22 from Ontario to San Jose, returning Tue, Jan 27, priced at ￥44,060 found 5 days ago
Alaska Airlines
Sat, Feb 14 - Wed, Feb 18
ONT
Ontario
SJC
San Jose
￥44,430 Roundtrip, found 11 hours ago
￥44,430
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat, Feb 14 from Ontario to San Jose, returning Wed, Feb 18, priced at ￥44,430 found 11 hours ago
Delta
Wed, Feb 11 - Wed, Feb 18
ONT
Ontario
SJC
San Jose
￥44,540 Roundtrip, found 9 hours ago
￥44,540
Roundtrip
found 9 hours ago
Select Delta flight, departing Wed, Feb 11 from Ontario to San Jose, returning Wed, Feb 18, priced at ￥44,540 found 9 hours ago
United
Wed, Feb 11 - Wed, Feb 18
ONT
Ontario
SJC
San Jose
￥44,650 Roundtrip, found 9 hours ago
￥44,650
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Feb 11 from Ontario to San Jose, returning Wed, Feb 18, priced at ￥44,650 found 9 hours ago
Delta
Wed, Feb 11 - Wed, Feb 18
ONT
Ontario
SJC
San Jose
￥45,420 Roundtrip, found 9 hours ago
￥45,420
Roundtrip
found 9 hours ago
Select Delta flight, departing Wed, Feb 11 from Ontario to San Jose, returning Wed, Feb 18, priced at ￥45,420 found 9 hours ago

Find the cheapest month to fly from Ontario (ONT) to San Jose (SJC)

October is typically the cheapest month to fly

From ￥11,970 - ￥67,880 per traveler.

Alternative airports near San Jose

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to San Francisco Intl. SFO. Cheapest option available. Average driving time to city center is 40 minutes. Flights from ￥65,450
SFO
San Francisco Intl.
Cheapest
Average driving time to city center40 min
Flights from ￥65,450
Flights from Ontario (ONT) to San Jose (SJC)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Norman Y. Mineta San Jose Intl.
Airlines serving
Alaska Airlines, United
Roundtrip price
￥29,230
Distance
534 km
Average flight time
1 hour 15 mins

Ontario to San Jose Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Ontario to will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring San Jose.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with ONT to SJC flights that won’t make your bank account wince. Ready to temporarily leave behind Ontario for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to SJC with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from Ontario Airport to SJC?
Round-trip flights between ONT and Norman Y. Mineta San Jose Intl. Airport (SJC) start from ￥29,230. This price is based on fares offered within the last 7 days on Expedia for flights departing within the next year — book today to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Los Angeles - Ontario Intl. Airport (ONT) to SJC?
This varies between air carriers, as each one has its own set of terms and conditions. Visit the Customer Service Portal, where you'll find easy-to-follow instructions on how to cancel online.
How do I find cheap flights from ONT to Norman Y. Mineta San Jose Intl. Airport (SJC) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for ONT to Norman Y. Mineta San Jose Intl. Airport (SJC) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from ONT to Norman Y. Mineta San Jose Intl. Airport (SJC)?
The flight time from Ontario Airport to San Jose Intl. Airport is a mere 1 hour and 9 minutes, so don't get too comfortable. There's a good chance the next time you glance out the window you'll be about to touch down in San Jose.
How far is the flight from Ontario Airport to Norman Y. Mineta San Jose Intl. Airport (SJC)?
The distance from ONT (ONT) to SJC (SJC) is just 540 kilometers. You'll be disembarking the plane and collecting your baggage from the carousel in no time at all.
Which airlines fly direct from Los Angeles - Ontario Intl. Airport (ONT) to SJC?
If you want to travel straight from Los Angeles - Ontario Intl. Airport (ONT) to SJC, you'll have to book a flight with one or more stops. Unfortunately, there are no airlines that fly directly on this route.
Are Los Angeles - Ontario Intl. Airport (ONT) to SJC flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally score a bargain, with some super cheap fares from Ontario Airport to SJC cropping up a few weeks before the date of departure. If you'd rather plan ahead, Expedia compares and updates all the best flight deals frequently — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines publish prices that far in advance.

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