Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to San Jose from $48

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to San Jose departing on 12/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Deals available from 900+ travel sites.

"This year, momondo is the #1 place for airfares on the internet."
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

Find the cheapest flights from Ontario to San Jose

Cheap round-trip flights

These are some of the best round-trip flight deals from Ontario to San Jose that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Ontario to San Jose.

Cheap last minute flights

Planning a quick getaway from Ontario to San Jose? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to San Jose, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Ontario to San Jose

Find recent round-trip train or bus tickets from Ontario to San Jose.

All round-trip flight deals to San Jose

The cheapest plane tickets to San Jose found on KAYAK recently.
11:46 am - 4:18 pmONT-SJC
4h 32m1 stop
2:28 pm - 11:44 pmSJC-ONT
9h 16m1 stop
$100Frontier
Find Deal
Mon, Dec 9 - Thu, Dec 12
12:59 am - 10:40 amONT-SJC
9h 41m1 stop
11:30 am - 11:59 pmSJC-ONT
12h 29m1 stop
$109Frontier
Find Deal
Fri, Dec 20 - Sat, Dec 28
7:35 pm - 8:50 pmONT-SJC
1h 15mnonstop
8:50 pm - 10:05 pmSJC-ONT
1h 15mnonstop
$187Southwest
Find Deal
Mon, Dec 16 - Thu, Dec 19
7:35 pm - 8:50 pmONT-SJC
1h 15mnonstop
8:00 am - 9:15 amSJC-ONT
1h 15mnonstop
$188Southwest
Find Deal
Wed, Dec 18 - Wed, Dec 25
6:00 am - 12:15 pmONT-SJC
6h 15m1 stop
11:58 am - 5:04 pmSJC-ONT
5h 06m1 stop
$282Alaska Airlines
Find Deal
Wed, Jan 8 - Sat, Jan 11
4:06 pm - 11:44 pmONT-SJC
7h 38m1 stop
1:10 pm - 8:13 pmSJC-ONT
7h 03m1 stop
$312Alaska Airlines
Find Deal
Fri, Jan 17 - Tue, Jan 21
12:59 am - 11:45 amONT-SJC
10h 46m1 stop
3:21 pm - 12:01 amSJC-ONT
8h 40m2 stops
Thu, Jan 2 - Sun, Jan 5
12:38 pm - 4:18 pmONT-SJC
3h 40m1 stop
8:28 am - 5:21 pmSJC-ONT
8h 53m2 stops
Thu, Dec 5 - Sat, Dec 7
5:10 am - 9:30 pmONT-SJC
16h 20m1 stop
3:54 pm - 9:51 amSJC-ONT
17h 57m2 stops
$473United Airlines
Find Deal
Tue, Jan 14 - Sat, Jan 25
5:10 am - 9:30 pmONT-SJC
16h 20m1 stop
3:54 pm - 9:51 amSJC-ONT
17h 57m2 stops
$498United Airlines
Find Deal
Thu, Jan 23 - Mon, Jan 27
12:38 pm - 4:18 pmONT-SJC
3h 40m1 stop
$48Frontier
Find Deal
Thu, Dec 5
11:46 am - 4:18 pmONT-SJC
4h 32m1 stop
$49Frontier
Find Deal
Mon, Dec 9
12:38 pm - 4:18 pmONT-SJC
3h 40m1 stop
$50Frontier
Find Deal
Thu, Dec 5
6:15 am - 7:35 amONT-SJC
1h 20mnonstop
$94Southwest
Find Deal
Tue, Dec 24
6:05 am - 10:10 amONT-SJC
4h 05m1 stop
$103Southwest
Find Deal
Sat, Jan 11
6:00 am - 2:20 pmONT-SJC
8h 20m1 stop
$141Alaska Airlines
Find Deal
Wed, Jan 22
6:00 am - 3:54 pmONT-SJC
9h 54m2 stops
$146Alaska Airlines
Find Deal
Sat, Jan 18
4:25 pm - 10:49 pmONT-SJC
6h 24m1 stop
$189American Airlines
Find Deal
Sat, Dec 28
6:00 am - 6:19 pmONT-SJC
12h 19m2 stops
$237Delta
Find Deal
Wed, Dec 18
6:10 am - 12:12 pmONT-SJC
6h 02m1 stop
$259American Airlines
Find Deal
Wed, Nov 27
1:22 pm - 4:54 pmONT-SJC
3h 32m1 stop
1:41 pm - 12:04 amSJC-ONT
10h 23m1 stop
$239Frontier
Find Deal
Mon, Nov 25 - Thu, Nov 28
1:32 pm - 4:54 pmONT-SJC
3h 22m1 stop
9:59 pm - 9:04 amSJC-ONT
11h 05m1 stop
$249Frontier
Find Deal
Tue, Nov 26 - Sun, Dec 1
1:15 pm - 8:45 pmONT-SJC
7h 30m1 stop
5:05 pm - 9:25 pmSJC-ONT
4h 20m1 stop
$428Southwest
Find Deal
Sat, Nov 23 - Tue, Dec 3
4:20 pm - 10:40 pmONT-SJC
6h 20m1 stop
8:00 am - 9:15 amSJC-ONT
1h 15mnonstop
$429Southwest
Find Deal
Sat, Nov 23 - Tue, Dec 3
6:10 am - 12:12 pmONT-SJC
6h 02m1 stop
4:09 pm - 10:02 pmSJC-ONT
5h 53m1 stop
$513American Airlines
Find Deal
Tue, Nov 26 - Tue, Nov 26
6:10 am - 12:12 pmONT-SJC
6h 02m1 stop
6:00 am - 12:03 pmSJC-ONT
6h 03m1 stop
$518American Airlines
Find Deal
Sat, Nov 23 - Mon, Nov 25
4:21 pm - 11:59 pmONT-SJC
7h 38m2 stops
12:52 pm - 8:03 pmSJC-ONT
7h 11m1 stop
$842Alaska Airlines
Find Deal
Fri, Nov 22 - Fri, Nov 29
10:00 am - 9:00 pmONT-SJC
11h 00m1 stop
6:15 am - 12:58 pmSJC-ONT
6h 43m1 stop
$862Alaska Airlines
Find Deal
Tue, Nov 26 - Tue, Dec 3
6:00 am - 12:55 pmONT-SJC
6h 55m2 stops
5:01 pm - 10:51 pmSJC-ONT
5h 50m1 stop
$1,405Delta
Find Deal
Sat, Nov 23 - Sat, Nov 23
6:00 am - 3:26 pmONT-SJC
9h 26m2 stops
7:35 am - 4:19 pmSJC-ONT
8h 44m2 stops
$1,430Delta
Find Deal
Fri, Nov 22 - Fri, Nov 29
7:35 pm - 8:50 pmONT-SJC
1h 15mnonstop
8:50 pm - 10:05 pmSJC-ONT
1h 15mnonstop
$187Southwest
Find Deal
Mon, Dec 16 - Thu, Dec 19
7:35 pm - 8:50 pmONT-SJC
1h 15mnonstop
8:00 am - 9:15 amSJC-ONT
1h 15mnonstop
$188Southwest
Find Deal
Wed, Dec 18 - Wed, Dec 25
5:45 pm - 7:05 pmONT-SJC
1h 20mnonstop
7:05 pm - 8:20 pmSJC-ONT
1h 15mnonstop
$203Southwest
Find Deal
Tue, Jan 14 - Wed, Jan 22
6:15 am - 7:35 amONT-SJC
1h 20mnonstop
5:15 pm - 6:30 pmSJC-ONT
1h 15mnonstop
$230Southwest
Find Deal
Thu, Dec 12 - Mon, Dec 16
6:15 am - 7:35 amONT-SJC
1h 20mnonstop
7:15 am - 8:30 amSJC-ONT
1h 15mnonstop
$255Southwest
Find Deal
Thu, Dec 12 - Fri, Dec 13
7:45 pm - 9:00 pmONT-SJC
1h 15mnonstop
7:00 pm - 8:15 pmSJC-ONT
1h 15mnonstop
$280Southwest
Find Deal
Sat, Dec 21 - Fri, Dec 27
1:15 pm - 2:35 pmONT-SJC
1h 20mnonstop
10:45 am - 12:00 pmSJC-ONT
1h 15mnonstop
$285Southwest
Find Deal
Mon, Dec 9 - Sat, Dec 14
5:50 am - 7:05 amONT-SJC
1h 15mnonstop
7:30 am - 8:45 amSJC-ONT
1h 15mnonstop
$300Southwest
Find Deal
Thu, Dec 26 - Sun, Dec 29
1:15 pm - 2:35 pmONT-SJC
1h 20mnonstop
5:15 pm - 6:30 pmSJC-ONT
1h 15mnonstop
$335Southwest
Find Deal
Wed, Dec 4 - Wed, Dec 4
1:15 pm - 2:35 pmONT-SJC
1h 20mnonstop
8:00 am - 9:15 amSJC-ONT
1h 15mnonstop
$340Southwest
Find Deal
Thu, Dec 5 - Fri, Dec 6

Frontier flights from Ontario to San Jose

Our best Frontier deals on Ontario to San Jose flight tickets
Frontier
Dec 9
ONT11:46 amOntario
4h 32m
1 stop
SJC4:18 pmSan Jose
Dec 12
SJC2:28 pmSan Jose
9h 16m
1 stop
ONT11:44 pmOntario
Frontier
Dec 20
ONT12:59 amOntario
9h 41m
1 stop
SJC10:40 amSan Jose
Dec 28
SJC11:30 amSan Jose
12h 29m
1 stop
ONT11:59 pmOntario
Frontier
Dec 5
ONT4:08 pmOntario
20h 00m
1 stop
SJC12:08 pmSan Jose
Dec 7
SJC5:19 pmSan Jose
13h 55m
1 stop
ONT7:14 amOntario

Southwest flights from Ontario to San Jose

Our best Southwest deals on Ontario to San Jose flight tickets
Southwest
Dec 16
ONT7:35 pmOntario
1h 15m
SJC8:50 pmSan Jose
Dec 19
SJC8:50 pmSan Jose
1h 15m
ONT10:05 pmOntario
Southwest
Dec 18
ONT7:35 pmOntario
1h 15m
SJC8:50 pmSan Jose
Dec 25
SJC8:00 amSan Jose
1h 15m
ONT9:15 amOntario
Southwest
Jan 14
ONT6:15 amOntario
6h 15m
1 stop
SJC12:30 pmSan Jose
Jan 22
SJC7:05 pmSan Jose
1h 15m
ONT8:20 pmOntario

See travel insights to San Jose from

How to get the cheapest flight ticket from Ontario to San Jose

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

April. The cheapest time of year to fly to San Jose from Ontario is April. Most expensive is March

What is the cheapest day to depart Ontario for San Jose?

Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Monday

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

In the afternoon. Ontario to San Jose flights are approximately 43% more expensive at noon than in the afternoon

What is the cheapest Ontario to San Jose flight route?

Ontario - San Jose. Fly from Ontario to San Jose for the best Ontario - San Jose flight prices

How far in advance should you book Ontario to San Jose flights?

6 days before. The cheapest time to buy a flight from Ontario to San Jose is approximately 6 days to departure

Can stopping save me money on Ontario to San Jose flights?

You could potentially save up to 48% on your flight if you consider stops on a Ontario to San Jose flight.

How have Ontario to San Jose flight prices changed over time?

As of November 2024, prices for Ontario to San Jose flights are approximately 23% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to San Jose

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to San Jose according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to San Jose (ONT to SJC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to San Jose

Best Price Found

$48

Fastest flight time

1h 15m

Direct flights

Every day

Airports in San Jose

1 airport
The best one-way flight to San Jose from Ontario in the past 72 hours is $48. The best round-trip flight deal from Ontario to San Jose found on momondo in the last 72 hours is $100.
The fastest flight from Ontario to San Jose takes 1h 15m
Direct flights go from Ontario to San Jose every day.
There is 1 airport near San Jose: San Jose (SJC)

  • How far is Ontario to San Jose by plane?

    There are 327.8 mi between Ontario and San Jose. Typically, this will take 1h 15m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to San Jose Airport?

    Prices for flights from Ontario Airport to San Jose Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to San Jose Airport?

  • How old do you have to be to fly from Ontario Airport to San Jose Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to San Jose Airport.

  • What documentation or ID do you need to fly to San Jose Airport?

    The necessary travel and health documents for your San Jose Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Ontario to San Jose?

  • What is the most popular airline from Ontario to San Jose?


Best airlines flying from Ontario to San Jose

Compare and see reviews for airlines that fly from Ontario to San Jose with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $26Free CancellationRating
6.1
3,539 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $43Free CancellationRating
6.3
8,175 reviews
Search Spirit Airlines flights
Breeze AirwaysPriceFrom $78Free CancellationRating
8.2
123 reviews
Search Breeze Airways flights
DeltaPriceFrom $98Free CancellationRating
8.0
8,758 reviews
Search Delta flights
Alaska AirlinesPriceFrom $114Free CancellationRating
8.0
9,458 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $178Free CancellationRating
8.1
5,015 reviews
Search Southwest flights
American AirlinesPriceFrom $273Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Southwest Flights From Ontario to San Jose

    The lowest priced Southwest flight from Ontario to San Jose from the last 72 hours was $178. Generally, Southwest has 16 flights on this route every week with an average price of $264. Southwest is rated 8.1/10 by our users.


Why use momondo?

Why should I use momondo to find a flight deal from Ontario to San Jose?

It is quick and easy to find Ontario to San Jose flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Jose that suits you.

Can I find flights from Ontario to San Jose with flexible booking policies on momondo?

Flights from Ontario to San Jose with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to San Jose?

Once you have performed a search for Ontario to San Jose flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to San Jose right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to San Jose flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


An easier way to manage your San Jose trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Tue 11/26
Tue 12/3
Email me momondo's favorite deals

Find better results for your trip to the United States