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ONT - SJC

$128 Find cheap flights from Ontario to San Jose

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to San Jose departing on 5/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 6/2
Sun 6/9

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to San Jose.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to San Jose.
In the last 7 days travelers have searched 43,693,958 times on KAYAK, and here is why:

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Cheap flight deals from Ontario to San Jose (ONT-SJC)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to San Jose that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:53 pm - 6:33 pmONT-SJC
5h 40m1 stop
6:10 am - 11:47 amSJC-ONT
5h 37m1 stop
$278American Airlines
Find Deal
Wed, May 29 - Sun, Jun 2
8:20 pm - 8:34 amONT-SJC
12h 14m1 stop
8:15 am - 10:20 pmSJC-ONT
14h 05m1 stop
$308Alaska Airlines
Find Deal
Tue, Jun 25 - Tue, Aug 20
12:53 pm - 6:33 pmONT-SJC
5h 40m1 stop
6:10 am - 11:47 amSJC-ONT
5h 37m1 stop
$318American Airlines
Find Deal
Fri, May 17 - Sun, May 19
12:53 pm - 6:33 pmONT-SJC
5h 40m1 stop
6:10 am - 11:47 amSJC-ONT
5h 37m1 stop
$319American Airlines
Find Deal
Fri, May 17 - Sun, May 19
12:53 pm - 6:33 pmONT-SJC
5h 40m1 stop
6:10 am - 11:47 amSJC-ONT
5h 37m1 stop
$323American Airlines
Find Deal
Sat, May 25 - Tue, May 28
6:00 am - 5:55 pmONT-SJC
11h 55m1 stop
6:15 am - 7:14 pmSJC-ONT
12h 59m1 stop
$330Alaska Airlines
Find Deal
Tue, Jun 4 - Wed, Jun 5
6:00 am - 10:03 pmONT-SJC
16h 03m3 stops
7:00 am - 5:28 pmSJC-ONT
10h 28m1 stop
$526United Airlines
Find Deal
Wed, May 29 - Wed, Jun 5
5:15 am - 9:09 pmONT-SJC
15h 54m1 stop
10:45 am - 8:48 pmSJC-ONT
10h 03m1 stop
$552United Airlines
Find Deal
Tue, Jun 4 - Tue, Jun 18
12:58 am - 3:57 pmONT-SJC
14h 59m1 stop
1:34 pm - 10:57 pmSJC-ONT
9h 23m1 stop
$731Volaris
Find Deal
Thu, Aug 29 - Sat, Aug 31
12:58 am - 3:57 pmONT-SJC
14h 59m1 stop
1:24 pm - 10:57 pmSJC-ONT
9h 33m1 stop
$748Volaris
Find Deal
Sun, May 19 - Wed, May 22

Flights from Ontario to San Jose - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to San Jose to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ontario to San Jose?

The average price of all flights from Ontario to San Jose clicked on KAYAK for each day over the last 12 months.
For Ontario to San Jose, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from San Jose back to Ontario, the best deals are generally found on Wednesday, with Thursday being the most expensive.

What is the cheapest month to fly from Ontario to San Jose?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to San Jose, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to San Jose is February, where tickets cost $138 on average. On the other hand, the most expensive months are June and May, where the average cost of tickets is $214 and $208 respectively.

How far in advance should I book a flight from Ontario to San Jose?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to San Jose, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to San Jose, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 58 days before departure.

Which airlines provide the cheapest flights from Ontario to San Jose?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Ontario to San Jose were found on American Airlines ($278) and Alaska Airlines ($308). Southwest proposed the cheapest one-way flight at $128.

How many flights are there between Ontario and San Jose per day?

Each day, there are between 3 and 5 nonstop flights that take off from Ontario and land in San Jose, with an average flight time of 1h 14m. The most common departure time is 5:00 am and most flights take off in the morning. Each week, there are 26 flights. The most frequent day of departure is Sunday, when 19% of all weekly flights depart. The fewest flights depart on a Wednesday.

What’s the earliest departure time from Ontario to San Jose?

Early birds can take the earliest flight from Ontario at 5:50 am and will be landing in San Jose at 7:10 am.

What’s the latest departure time from Ontario to San Jose?

If you prefer to fly at night, the latest flight from Ontario to San Jose jets off at 9:40 pm and lands at 10:50 pm.

Good to know

Low season

August

High season

January

Cheapest flight

$128
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Ontario to San Jose

When to book flights from Ontario to San Jose

Are your dates flexible? Find out the best times to travel from Ontario to San Jose based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to San Jose

  • What are some of my transportation options to get from the airport in San Jose to downtown San Jose?

    One of the best ways to get from the Norman Y. Mineta San Jose Interatniola Aiport (SJC) to the center of San Jose is aboard the line 60 bus operated by Santa Clara VTA that makes the trip in about 6 minutes.

  • If I plan on using a rideshare service when I arrive at the airport in San Jose, where should I pick up my ride?

    At Terminal A, all rideshare vehicles will meet their passengers at stop number one curbside at the adjacent parking garage. At Terminal B, they will do so at stops eight and nine on the ground transportation island.

  • Does the airport in San Jose have any hotels that are conveniently located next to the airport?

    One of the most suitable choices for a hotel that is right at the entrance to the airport on Skyport Dr. is the Sonesta Select San Jose Airport, which also offers a complimentary shuttle between the terminal building and the hotel.

  • Where will I find my rental car company if I plan on renting a car at the airport in San Jose?

    Every one of the 11 or so rental car companies that operate at this airport has a customer service desk in the rental car center of the airport. The rental car center sits directly across from Terminal B, and passengers arriving at Terminal B can walk across the crosswalk on Airport Boulevard to get to the center. If you arrive at Terminal A, take the airport blue shuttle bus to the rental car center.

  • What is the cheapest flight from Ontario to San Jose?

    In the last 3 days, the lowest price for a flight from Ontario to San Jose was $128 for a one-way ticket and $278 for a round-trip.

  • Do I need a passport to fly between Ontario and San Jose?

    No

  • Which aircraft models fly most regularly from Ontario to San Jose?

    The Boeing 737-700 Passenger/BBJ1 (winglets) is the aircraft model that flies most regularly on the Ontario to San Jose flight route.

  • On which days can I fly direct from Ontario to San Jose?

    There are nonstop flights from Ontario to San Jose on a daily basis.

  • Which is the best airline for flights from Ontario to San Jose, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Ontario to San Jose are Alaska Airlines and Delta. With an average price for the route of $478 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $176 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Ontario to San Jose?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to San Jose.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to San Jose?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Jose from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to San Jose?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Jose with an airline and back to Ontario with another airline. Booking your flights between Ontario and SJC can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to San Jose?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Jose from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from ONT to San Jose

  • A very convenient and cost-effective way to get from the center of Ontario to the Ontario International Airport (ONT) is to take a ride on the line at 61 bus operated by Omnitrans, which makes the trip in about 11 minutes.
  • If you are flying with a pet or a service animal through the Ontario International Airport, you will find that this airport offers pet relief areas that they refer to as Barking Lots. There are two of these areas outside of the terminal buildings at each end of the terminal, and there are also indoor areas near gates 210 and 410.
  • Nursing mothers traveling by way of the Ontario International Airport will find that this airport has single-occupancy lactation rooms allowing mothers to nurse conveniently and privately. Each of the rooms features a padded bench, a changing area, and an electrical outlet and sits in close proximity to restrooms at the terminal. These rooms have locations adjacent to gates 207 and 407.
  • For travelers with disabilities or limited mobility traveling at the Ontario International Airport, the airport recommends these travelers arrive at least 2 hours before their flight. Some of the features that this airport offers for disabled passengers include the California Relay Service, which assists passengers that are deaf or hard of hearing, curb cuts to assist with getting from the street to the sidewalk, as well as elevators in all of the public areas of the airport.
  • When travelers are looking for a convenient and comfortable place to wait for their flight to San Jose at the Ontario International Airport, a good choice would be to use one of the two Aspire Lounge locations at the airport, with one in terminal two and the other terminal four. These lounges offer plenty of comfortable seating as well as food and beverage options and televisions for entertainment.
See more tips

Prefer to fly non-stop from Ontario to San Jose?

Find which airlines fly direct from Ontario to San Jose, which days they fly and book direct flights.

Nonstop departures

Ontario to San Jose

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Nonstop returns

San Jose to Ontario

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights
See more direct flights

Top 5 airlines serving from Ontario to San Jose

 
See real verified KAYAK customer reviews for airlines flying from Ontario to San Jose. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to San Jose? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
Breeze AirwaysOverall score based on 75 reviews
6.4Entertainment
8.9Crew
8.3Boarding
6.7Food
8.1Comfort
Airline reviews

The only thing that would make the experience better is a little more leg room and the overhead bins are very low. I hit my head when I was settling into the middle seat and was nervous about poking my eye on the corner of a lowered bin when I was deplaning.

8.0 ExcellentKaren, Apr 2024CAK - LAS
Read more about Breeze Airways reviews

The only thing that would make the experience better is a little more leg room and the overhead bins are very low. I hit my head when I was settling into the middle seat and was nervous about poking my eye on the corner of a lowered bin when I was deplaning.

It helps manage expectations to know that this is a discount airline. I brought my own snacks so that I wouldn't have to buy something if I got hungry or thirsty for soda during the flight. One of my seat mates was unaware that he would have to pay $4 for a Coke and was a bit upset. He hadn't listened to the flight attendant say "Drinks for purchase?". All of the employees I interacted with were friendly and professional. My one complaint is that the overhead bins are very low when they are open. I was heading for the middle seat and unexpectedly hit the top of my head on the bottom of the open overhead bin. The headrests were also a little uncomfortable. But overall, for the price, it was a decent value, and I would fly Breeze again.

Flight was on time. The crew was efficient and kind.

Did not like the fact that I was charged to take on a bag I usually put in the overhead

My flight was delayed, not by much.?very good communication during fest and waiting to board.

Communication with airline electronically was difficult. No number seemed available to talk to customer service.

What could have been better is if Discover credit card would be able to purchase food

Crew was inconsistent in instructions in advising passengers about seat backs during take off. Perfunctory announcements except from cabin.

The experience with Breeze was really great. The app makes managing flights easy. You can check in on there 24 hours in advance, and your boarding pass is there, too. The flight crew and the staff at both our airports were wonderful. Snacks and drinks were reasonably priced. The seats were very comfortable, they even had adjustable headrests on every seat. The only downside is not having entertainment or Wi-Fi available onboard.

The price is amazing. I was worried about how the flight would be as I never flew then. Seats were very comfortable. We had lots of legroom. The Akron airport was really nice. Overall it didn't have the stress we usually experience with flying. Highly recommend

They canceled the flight 30 minutes prior to departure without any heads up.

We had a very scary attempted landing in Palm Springs and were redirected to Ontario. It was a stressful flight.

Every thing means , crew, service, timing, boarding is very good.

Good - San Jose security is a breeze. Exact opposite of San Diego. Flight on time. Bad - FA's were not that cheery or polite. I thought we may blow out a tire as the pilot slammed down a hard landing in perfect conditions. He came in pretty hot like he had a date waiting.

It was our baby’s first flight and everything went perfect. The flight attendant gave him his first set of wings and we were smooth flying from there.

The messaging about the change in flight destination and options for getting to SFO was poor. There should have been frequent updates. When I spoke to the boarding agent moment before we were supposed to board, he was flippant and offered no help before the announcement was made that transportation would be arranged. It was as poor of an experience that I've ever had.

My plane ride down landed 20 min late. Boarding at SFO was strange too. The people at the terminal were nice—but, boarding lacked direction, and was confusing . Coming back was worse—the plane was hours behind—and I barely caught the last Bart train back to San Francisco (3 min more and I would have been in trouble). It was a very stressful trip, and it didn’t need to be.

the departure got delayed due to SJC situation, but it was a quite good waiting thanks to Alaska airline teams.

WiFi connection bad. Food is really awful. Crew very nice and efficient

It was the worst experience because they delayed the flight by 2 and half hours. We were supposed to depart by 3:41 but they did the depart by 6 pm. It was so boring!!

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

I can say I will not be taking this airline again any time soon. Seat were uncomfortable and too tight. Lack of chair screen and little overhead space.

Plane felt so crowded and tightly packed. The chair itself was not comfortable.

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

They attended to my needs as I couldn't walk and they provided a wheelchair for me.q

Poor availability of food. Cold cabin temperature. Extremely long waiting time for a flight attendant to respond to a call button signal.

The guy with severe body odor sat next to me. For the whole duration of the flight it was a torture. The airline should have better policy on limiting people with bad body odor to board the flight. Passengers should not be the ones to endure bad odor for the whole duration of the flight. The airline should be e the one to ensure decent air quality for ever passenger.

They charged me 212.00 for a heavy check in bag at the gate. The pricing and process was so confusing - as if it was designed to purposefully gouge customers who need to board plane. That experience combined with the outrageous price charged will prevent me from ever flying Spirit again. And I’ll be sure to tell the story to anyone who cares to hear.

The text told me it was changed to Terminal E and Gate D5. But with no one on site to ask questions there was confusion on where to go as all the gates were E's. Then we took the skyline to the D area. We left to get something to eat. No announcement was made but my daughter happened to asked and they told her our gate was moved to D12. I will not fly Spirit again.

The agent at the check in desk was absolutely rude. The rest of the team after that was good, but the check in process at LAS was miserable. The woman at the desk spoke like we were stupid and was rude throughout the process.

Its so random that they only allow 40 pounds on checked bags when all airlines take 55. They then charge you for each 10 extra pounds, so my checked suitcase was $130 and the flight $30 ... its like whattt, im for sure not traveling with Spirit again

So bad. The check in process was laborious and the check in agent didn't seem to know how to manage the process efficiently and was confused about how to check in my son's sports equipment. The baggage fees were outrageous and so expensive. $90 for a carry on bag? And $200 additional for 2 check ins. The security lines were insanely long and the terminal was not very nice in the Spirit area. $5 for a water on board. It was my first and last time flying Spirit - I tried to save $ by flying them due to the accommodating schedule but I should have paid for Southwest, because it would've actually ended up less expensive due to the free bags with Southwest. There were no charging ports on the airplane, no wifi and really uncomfortable seating. The flight crew were great though, courteous and efficient in their boarding. Flight was delayed 1 hour, but we made up 15 minutes in flight.

My experience was better than expected. What I did find not so great was the seats. Very little room, they did not recline and the tray table was the size of a post card. There was no food to try, just standard snacks that you had to pay for and I don’t know of any entertainment. I would fly again even though everything was an upcharge. Flight was on time with little disturbance

thy don't even ofer water we have to buy it for $4.49 and paid for our cary on bags $100 each we never will fly in this company again.

Super cool and laid back, three lovely ladies. Couldn’t ask for better service.

It was fine. Boarding was a little rude. On flight staff was great. The cost to purchase everything was a bit annoying but I get that's the business model.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Terrible. Seats are bad and the baggage policy is inconsistent

Better than I expected but I did pay for a seat and carry on bags ahead of time.

The boarding time. I was in Section 1 the lady in charge just let people in section 3 without see us. Make a line , I have to step out and ask her. We were in the line and she just take my ticket and that’s it, so if I don’t ask her she could leave us at the end! We paid more for that privilege and. She doesn’t care….

I hope to avoid flying with them in the future. First flight got cancelled then got stuck with a 13 hour layover in Denver. The process was long and frustrating to many people.

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

Book cheap flights from Ontario to San Jose

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to San Jose found on KAYAK in the last 72 hours.
5/23Thu
1 stopSouthwest
4h 25mONT-SJC
$128
5/31Fri
1 stopAmerican Airlines
5h 25mONT-SJC
$129
6/25Tue
1 stopAlaska Airlines
12h 14mONT-SJC
$160
6/4Tue
1 stopAlaska Airlines
5h 40mONT-SJC
$164
5/29Wed
3 stopsUnited Airlines
16h 03mONT-SJC
$255
6/3Mon
1 stopUnited Airlines
15h 14mONT-SJC
$283
5/28Tue
1 stopVolaris
10h 53mONT-SJC
$354
9/4Wed
1 stopDelta
10h 38mONT-SJC
$366
6/2Sun
1 stopVolaris
14h 59mONT-SJC
$370
9/3Tue
1 stopDelta
16h 49mONT-SJC
$433

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Last minute flights from Ontario to San Jose

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to San Jose that are departing in the next 10 days.
5/7Tue
multi-stopAmerican Airlines
5h 40mONT-SJC
5/9Thu
multi-stopAmerican Airlines
5h 37mSJC-ONT
$393
5/4Sat
multi-stopAmerican Airlines
5h 47mONT-SJC
5/11Sat
multi-stopAmerican Airlines
6h 05mSJC-ONT
$402
5/4Sat
multi-stopAmerican Airlines
5h 45mONT-SJC
5/11Sat
multi-stopAmerican Airlines
5h 37mSJC-ONT
$403
5/6Mon
nonstopSouthwest
1h 05mONT-SJC
5/9Thu
multi-stopSouthwest
3h 40mSJC-ONT
$409
5/6Mon
multi-stopSouthwest
4h 00mONT-SJC
5/9Thu
multi-stopSouthwest
4h 15mSJC-ONT
$410
5/7Tue
multi-stopAlaska Airlines
16h 19mONT-SJC
5/8Wed
multi-stopAlaska Airlines
19h 55mSJC-ONT
$938
5/8Wed
multi-stopAlaska Airlines
18h 41mONT-SJC
5/15Wed
multi-stopAlaska Airlines
17h 00mSJC-ONT
$965
5/8Wed
multi-stopUnited Airlines
9h 52mONT-SJC
5/8Wed
multi-stopUnited Airlines
15h 26mSJC-ONT
$1,500
5/8Wed
multi-stopDelta
6h 45mONT-SJC
5/8Wed
multi-stopDelta
6h 43mSJC-ONT
$1,502
5/6Mon
multi-stopDelta
7h 02mONT-SJC
5/6Mon
multi-stopDelta
6h 59mSJC-ONT
$2,103

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Ontario - San Jose Flights

Departure:

Ontario (ONT)United States

Destination:

San Jose (SJC)United States

Return flight deals:

San Jose - Ontario

Cabin classes:

$400