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Cheap flights from San Jose to Ontario from $49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Jose to Ontario departing on 2/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Jose to Los Angeles

Cheap round-trip flights

These are some of the best round-trip flight deals from San Jose to Los Angeles 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 San Jose to Los Angeles.

Cheap last minute flights

Planning a quick getaway from San Jose to Los Angeles? 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 Los Angeles, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from San Jose to Los Angeles

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

All round-trip flight deals to Los Angeles

The cheapest plane tickets to Los Angeles found on KAYAK recently.
1:00 pm - 8:35 pmSJC-ONT
7h 35m1 stop
10:34 am - 4:46 pmONT-SJC
6h 12m1 stop
$100Frontier
Find Deal
Thu, Feb 13 - Mon, Feb 24
4:03 pm - 12:06 amSJC-ONT
8h 03m1 stop
10:24 am - 4:46 pmONT-SJC
6h 22m1 stop
$102Frontier
Find Deal
Wed, Feb 26 - Sun, Mar 2
1:10 pm - 8:13 pmSJC-ONT
7h 03m1 stop
8:04 am - 4:21 pmONT-SJC
8h 17m1 stop
Wed, Jan 29 - Sat, Feb 1
1:11 pm - 11:47 pmSJC-ONT
10h 36m1 stop
11:33 am - 6:12 pmONT-SJC
6h 39m1 stop
Thu, Jan 30 - Mon, Feb 3
2:10 pm - 3:30 pmSJC-ONT
1h 20mnonstop
3:35 pm - 4:55 pmONT-SJC
1h 20mnonstop
$213Southwest
Find Deal
Wed, Jan 29 - Sat, Feb 1
9:45 am - 11:00 amSJC-ONT
1h 15mnonstop
6:40 am - 8:00 amONT-SJC
1h 20mnonstop
$222Southwest
Find Deal
Sat, Jan 18 - Fri, Feb 28
8:10 am - 8:13 pmSJC-ONT
12h 03m1 stop
5:44 pm - 11:14 amONT-SJC
17h 30m2 stops
$263Alaska Airlines
Find Deal
Wed, Jan 29 - Sat, Feb 1
10:09 am - 11:12 pmSJC-ONT
13h 03m1 stop
11:14 am - 11:27 pmONT-SJC
12h 13m2 stops
$273Alaska Airlines
Find Deal
Sun, Feb 2 - Wed, Feb 5
8:25 am - 8:51 pmSJC-ONT
12h 26m1 stop
5:10 am - 6:00 pmONT-SJC
12h 50m1 stop
$443United Airlines
Find Deal
Tue, Feb 11 - Wed, Feb 12
3:54 pm - 9:51 amSJC-ONT
17h 57m2 stops
5:10 am - 6:00 pmONT-SJC
12h 50m1 stop
$468United Airlines
Find Deal
Tue, Jan 21 - Tue, Jan 28
4:03 pm - 12:06 amSJC-ONT
8h 03m1 stop
$49Frontier
Find Deal
Wed, Feb 12
4:03 pm - 12:06 amSJC-ONT
8h 03m1 stop
$50Frontier
Find Deal
Wed, Feb 12
8:55 am - 10:10 amSJC-ONT
1h 15mnonstop
$99Southwest
Find Deal
Wed, Jan 29
7:40 am - 10:55 amSJC-ONT
3h 15m1 stop
$104Southwest
Find Deal
Tue, Feb 18
2:25 pm - 10:32 pmSJC-ONT
8h 07m1 stop
$129Delta
Find Deal
Wed, Jan 29
8:10 am - 5:04 pmSJC-ONT
8h 54m2 stops
$134Alaska Airlines
Find Deal
Tue, Jan 28
5:19 pm - 10:49 amSJC-ONT
17h 30m1 stop
$135Alaska Airlines
Find Deal
Mon, Jan 27
11:45 am - 10:32 pmSJC-ONT
10h 47m1 stop
$145Delta
Find Deal
Sun, Jan 26
3:54 pm - 9:51 amSJC-ONT
17h 57m2 stops
$252United Airlines
Find Deal
Tue, Jan 14
8:25 am - 8:51 pmSJC-ONT
12h 26m1 stop
$287United Airlines
Find Deal
Mon, Feb 10
7:26 pm - 7:09 amSJC-ONT
11h 43m1 stop
8:11 pm - 12:08 pmONT-SJC
15h 57m1 stop
$137Frontier
Find Deal
Thu, Jan 2 - Thu, Jan 9
7:26 pm - 1:00 pmSJC-ONT
17h 34m1 stop
9:28 pm - 4:23 pmONT-SJC
18h 55m1 stop
$142Frontier
Find Deal
Thu, Jan 2 - Fri, Jan 10
7:26 pm - 7:09 amSJC-ONT
11h 43m1 stop
12:59 am - 10:40 amONT-SJC
9h 41m1 stop
$276Frontier
Find Deal
Thu, Jan 2 - Fri, Jan 3
7:26 pm - 8:06 amSJC-ONT
12h 40m1 stop
12:59 am - 11:45 amONT-SJC
10h 46m1 stop
$292Frontier
Find Deal
Wed, Jan 1 - Thu, Jan 2
6:35 am - 12:55 pmSJC-ONT
6h 20m1 stop
4:05 pm - 9:40 pmONT-SJC
5h 35m1 stop
$513Southwest
Find Deal
Wed, Jan 1 - Wed, Jan 1
1:15 pm - 2:30 pmSJC-ONT
1h 15mnonstop
6:00 pm - 9:40 pmONT-SJC
3h 40m1 stop
$514Southwest
Find Deal
Wed, Jan 1 - Wed, Jan 1
9:53 am - 3:25 pmSJC-ONT
5h 32m1 stop
12:45 pm - 6:47 pmONT-SJC
6h 02m1 stop
$585American Airlines
Find Deal
Mon, Dec 30 - Wed, Jan 1
6:59 pm - 9:45 amSJC-ONT
14h 46m1 stop
4:06 pm - 9:14 amONT-SJC
17h 08m1 stop
$812Alaska Airlines
Find Deal
Fri, Jan 3 - Tue, Jan 7
2:43 pm - 11:59 pmSJC-ONT
9h 16m1 stop
8:32 pm - 12:33 pmONT-SJC
16h 01m1 stop
$822Alaska Airlines
Find Deal
Thu, Jan 2 - Sun, Jan 5
11:10 am - 11:59 pmSJC-ONT
12h 49m1 stop
8:52 pm - 12:54 pmONT-SJC
16h 02m2 stops
$1,061
Find Deal
Tue, Dec 31 - Thu, Jan 2
2:10 pm - 3:30 pmSJC-ONT
1h 20mnonstop
3:35 pm - 4:55 pmONT-SJC
1h 20mnonstop
$213Southwest
Find Deal
Wed, Jan 29 - Sat, Feb 1
7:05 pm - 8:20 pmSJC-ONT
1h 15mnonstop
8:55 pm - 10:15 pmONT-SJC
1h 20mnonstop
$216Southwest
Find Deal
Fri, Jan 24 - Sun, Jan 26
9:45 am - 11:00 amSJC-ONT
1h 15mnonstop
6:40 am - 8:00 amONT-SJC
1h 20mnonstop
$222Southwest
Find Deal
Sat, Jan 18 - Fri, Feb 28
9:45 am - 11:00 amSJC-ONT
1h 15mnonstop
2:05 pm - 3:20 pmONT-SJC
1h 15mnonstop
$228Southwest
Find Deal
Sat, Feb 1 - Mon, Feb 3
7:45 am - 9:05 amSJC-ONT
1h 20mnonstop
5:45 pm - 7:05 pmONT-SJC
1h 20mnonstop
$254Southwest
Find Deal
Sun, Jan 12 - Tue, Jan 14
8:55 pm - 10:15 pmSJC-ONT
1h 20mnonstop
8:50 pm - 10:10 pmONT-SJC
1h 20mnonstop
$260Southwest
Find Deal
Fri, Feb 14 - Mon, Feb 17
11:20 am - 12:35 pmSJC-ONT
1h 15mnonstop
8:15 am - 9:30 amONT-SJC
1h 15mnonstop
$280Southwest
Find Deal
Thu, Mar 13 - Sun, Mar 16
6:35 am - 7:55 amSJC-ONT
1h 20mnonstop
8:15 am - 9:30 amONT-SJC
1h 15mnonstop
$300Southwest
Find Deal
Fri, Mar 14 - Sun, Mar 16
8:30 pm - 9:45 pmSJC-ONT
1h 15mnonstop
6:00 am - 7:15 amONT-SJC
1h 15mnonstop
$309Southwest
Find Deal
Thu, Jan 16 - Mon, Jan 20
7:05 pm - 8:20 pmSJC-ONT
1h 15mnonstop
9:00 am - 10:20 amONT-SJC
1h 20mnonstop
$371Southwest
Find Deal
Wed, Jan 8 - Sat, Jan 11

Frontier flights from San Jose to Ontario

Our best Frontier deals on San Jose to Ontario flight tickets
Frontier
Feb 13
SJC1:00 pmSan Jose
7h 35m
1 stop
ONT8:35 pmOntario
Feb 24
ONT10:34 amOntario
6h 12m
1 stop
SJC4:46 pmSan Jose
Frontier
Feb 26
SJC4:03 pmSan Jose
8h 03m
1 stop
ONT12:06 amOntario
Mar 2
ONT10:24 amOntario
6h 22m
1 stop
SJC4:46 pmSan Jose
Frontier
Jan 18
SJC5:19 pmSan Jose
13h 52m
1 stop
ONT7:11 amOntario
Feb 28
ONT10:34 amOntario
6h 12m
1 stop
SJC4:46 pmSan Jose

Southwest flights from San Jose to Ontario

Our best Southwest deals on San Jose to Ontario flight tickets
Southwest
Jan 29
SJC2:10 pmSan Jose
1h 20m
ONT3:30 pmOntario
Feb 1
ONT3:35 pmOntario
1h 20m
SJC4:55 pmSan Jose
Southwest
Jan 18
SJC9:45 amSan Jose
1h 15m
ONT11:00 amOntario
Feb 28
ONT6:40 amOntario
1h 20m
SJC8:00 amSan Jose
Southwest
Jan 24
SJC7:25 amSan Jose
7h 40m
1 stop
ONT3:05 pmOntario
Jan 26
ONT8:55 pmOntario
1h 20m
SJC10:15 pmSan Jose

See travel insights to Los Angeles from

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

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 to Ontario?

In general, May is the cheapest month to fly from San Jose to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $68. If you aren’t able to travel during the month of May, then book flights to Ontario from San Jose during April instead. Flights to Ontario in April, while not as cheap as those in May, still average around $86.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Tuesday when prices can be found for as low as $119. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from San Jose to Ontario for around $274.

What is the cheapest time of day to depart on your flight to Ontario?

In the afternoon is the cheapest time of day to fly from San Jose to Ontario when you can find flight prices for as low as $178. Flying to Ontario in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $260 on average. Flights to Ontario from San Jose in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest San Jose to Ontario flight route?

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

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

Most flyers found that booking tickets 29 days in advance of their planned departure date is the best time to get cheap flights to Ontario. During this timeframe, flight prices are around $180. However, in the past 72 hours, people saw flights from San Jose for as low as $52.

What cabin class options are available on San Jose to Ontario flights?

There are 1 cabin classes available to choose from on San Jose to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 50% on your flight if you consider stops on a San Jose to Ontario flight.

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

As of December 2024, prices for San Jose to Ontario flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from San Jose to Ontario

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

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

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

Best Price Found

$49

Fastest flight time

1h 15m

Direct flights

Mon, Thu, Fri, Sat and Sun

Airports in Ontario

1 airport
The best one-way flight to Ontario from San Jose in the past 72 hours is $49. The best round-trip flight deal from San Jose to Ontario found on momondo in the last 72 hours is $100.
The fastest flight from San Jose to Ontario takes 1h 15m
Direct flights go from San Jose to Ontario on Monday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Southwest.
There is 1 airport near Ontario: Ontario (ONT)

  • How far is San Jose to Ontario by plane?

    The distance between San Jose and Ontario is about 327.8 mi. By plane, this route typically takes 1h 15m.

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

    Prices for flights from San Jose Airport to Ontario Airport were last updated today.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Jose Airport to Ontario Airport.

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

    The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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


Best airlines flying from San Jose to Ontario

Compare and see reviews for airlines that fly from San Jose to Ontario with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $37Free CancellationRating
6.3
8,100 reviews
Search Spirit Airlines flights
FrontierPriceFrom $38Free CancellationRating
6.0
3,458 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $138Free CancellationRating
8.0
9,583 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $191Free CancellationRating
8.1
4,722 reviews
Search Southwest flights
  • Southwest Flights From San Jose to Ontario

    Southwest flight deals from San Jose to Ontario start from $191 round-trip. Over the 20 Southwest flights for this route in a normal week, average airfare is usually $279 round-trip - but some users have found much cheaper deals with momondo.


Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Jose to Ontario. momondo saves you time and could save you money on your trip.

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

Flights from San Jose to Ontario 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 San Jose to Ontario?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Jose to Ontario.

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

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


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