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Cheap flights from San José to Los Angeles from $169

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 José to Los Angeles departing on 2/2. 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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0 bags

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Find the cheapest flights from San José to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:40 am - 10:57 pm
SJO
-
ONT
15h 17m
1 stop
United Airlines Logo
6:15 am - 8:32 am
ONT
-
SJO
24h 17m
1 stop
$290United Airlines
Thu, Feb 26 - Fri, Mar 6
United Airlines Logo
7:55 am - 12:22 pm
SJO
-
ONT
29h 27m
2 stops
United Airlines Logo
6:00 am - 7:15 am
ONT
-
SJO
24h 15m
1 stop
$301United Airlines
Fri, May 1 - Thu, May 7
United Airlines Logo
7:55 am - 9:58 pm
SJO
-
ONT
15h 03m
1 stop
United Airlines Logo
10:37 am - 7:15 am
ONT
-
SJO
19h 38m
1 stop
$310United Airlines
Fri, May 1 - Fri, May 15
United Airlines Logo
7:55 am - 12:22 pm
SJO
-
ONT
29h 27m
2 stops
United Airlines Logo
10:37 am - 7:15 am
ONT
-
SJO
19h 38m
1 stop
$315United Airlines
Fri, May 1 - Fri, May 15
United Airlines Logo
8:45 am - 9:59 pm
SJO
-
ONT
15h 14m
1 stop
United Airlines Logo
8:00 am - 6:16 pm
ONT
-
SJO
8h 16m
1 stop
$344United Airlines
Fri, Feb 27 - Tue, Mar 3
Multiple Airlines Logo
5:30 am - 10:36 pm
SJO
-
ONT
18h 06m
1 stop
Multiple Airlines Logo
6:15 am - 7:32 am
ONT
-
SJO
24h 17m
1 stop
$346Multiple Airlines
Wed, Mar 11 - Sun, Mar 15
Copa Airlines Logo
11:13 am - 9:40 pm
SJO
-
ONT
11h 27m
1 stop
Copa Airlines Logo
5:55 am - 10:39 pm
ONT
-
SJO
15h 44m
1 stop
$352Copa Airlines
Wed, May 27 - Thu, Jun 4
United Airlines Logo
8:45 am - 6:02 pm
SJO
-
ONT
10h 17m
1 stop
United Airlines Logo
6:49 pm - 7:15 am
ONT
-
SJO
11h 26m
1 stop
$355United Airlines
Tue, Apr 21 - Wed, Apr 22
Multiple Airlines Logo
8:45 am - 10:59 pm
SJO
-
ONT
15h 14m
1 stop
Multiple Airlines Logo
6:00 am - 7:15 am
ONT
-
SJO
24h 15m
1 stop
$357Multiple Airlines
Sun, May 17 - Sun, May 24
United Airlines Logo
7:55 am - 5:52 pm
SJO
-
ONT
34h 57m
3 stops
United Airlines Logo
10:37 am - 7:15 am
ONT
-
SJO
19h 38m
1 stop
$368United Airlines
Fri, May 1 - Fri, May 15

Azul flights from San José to Ontario

Our best Azul deals on San José to Ontario flight tickets
Azul
May 27
SJO8:45 amSan José Juan Santamaria Intl
14h 49m
1 stop
ONT10:34 pmOntario
Jun 4
ONT5:55 amOntario
15h 44m
1 stop
SJO10:39 pmSan José Juan Santamaria Intl
$352
Azul
Jan 30
SJO2:20 pmSan José Juan Santamaria Intl
9h 38m
1 stop
ONT9:58 pmOntario
Feb 1
ONT1:53 pmOntario
16h 39m
1 stop
SJO8:32 amSan José Juan Santamaria Intl
$463
Azul
Mar 3
SJO9:40 amSan José Juan Santamaria Intl
10h 01m
1 stop
ONT5:41 pmOntario
Mar 10
ONT11:59 pmOntario
10h 57m
1 stop
SJO11:56 amSan José Juan Santamaria Intl
$470

GOL flights from San José to Ontario

Our best GOL deals on San José to Ontario flight tickets
GOL
Feb 10
SJO1:43 pmSan José Juan Santamaria Intl
22h 25m
2 stops
ONT10:08 amOntario
Feb 14
ONT10:37 pmOntario
20h 30m
2 stops
SJO9:07 pmSan José Juan Santamaria Intl
$383
GOL
Mar 24
SJO1:50 pmSan José Juan Santamaria Intl
21h 16m
2 stops
ONT10:06 amOntario
Apr 6
ONT2:39 pmOntario
19h 56m
2 stops
SJO11:35 amSan José Juan Santamaria Intl
$388

momondo Fare Finder

 
Customize your flight search to find flights from San José to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 27, 2026.
Use the filters below to find and compare flights from San José to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Thu 2/26

9:40 am-10:57 pm

1 stop15h 17m

Ontario

Fri 3/6

6:15 am-8:32 am

1 stop24h 17m

$290

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Fri 5/1

7:55 am-12:22 pm

2 stops29h 27m

Ontario

Thu 5/7

6:00 am-7:15 am

1 stop24h 15m

$301

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Fri 5/1

7:55 am-9:58 pm

1 stop15h 03m

Ontario

Fri 5/15

10:37 am-7:15 am

1 stop19h 38m

$310

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Fri 5/1

7:55 am-12:22 pm

2 stops29h 27m

Ontario

Fri 5/15

10:37 am-7:15 am

1 stop19h 38m

$315

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Fri 2/27

8:45 am-9:59 pm

1 stop15h 14m

Ontario

Tue 3/3

8:00 am-6:16 pm

1 stop8h 16m

$344

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Wed 3/11

5:30 am-10:36 pm

1 stop18h 06m

Ontario

Sun 3/15

6:15 am-7:32 am

1 stop24h 17m

$346

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Wed 5/27

11:13 am-9:40 pm

1 stop11h 27m

Ontario

Thu 6/4

5:55 am-10:39 pm

1 stop15h 44m

$352

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Tue 4/21

8:45 am-6:02 pm

1 stop10h 17m

Ontario

Wed 4/22

6:49 pm-7:15 am

1 stop11h 26m

$355

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Sun 5/17

8:45 am-10:59 pm

1 stop15h 14m

Ontario

Sun 5/24

6:00 am-7:15 am

1 stop24h 15m

$357

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Fri 5/1

7:55 am-5:52 pm

3 stops34h 57m

Ontario

Fri 5/15

10:37 am-7:15 am

1 stop19h 38m

$368

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from San José 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, October is the cheapest month to fly from San José to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $368. If you aren’t able to travel during the month of October, then book flights to Ontario from San José during November instead. Flights to Ontario in November, while not as cheap as those in October, still average around $383.

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

You are more likely to see cheaper flights to Ontario from San José when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $420 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from San José for as low as $330 on momondo.

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

You could potentially save up to 5% on your flight if you consider stops on a San José to Ontario flight.

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

As of January 2026, prices for San José to Ontario flights are approximately 21% more expensive when compared to flights at the same time last year.

When to book flights from San José to Ontario

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

Cheap San José to Ontario (SJO to ONT) flight deals and tips

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

Fastest flight time

9h 38m

Direct flights

None
The fastest flight from San José to Ontario takes 9h 38m
There are no direct flights from San José to Ontario. There are no popular flight routes from San José to Ontario.
Search flight deals

  • How far is San José Juan Santamaria Intl to Ontario by plane?

    A flight from San José Juan Santamaria Intl to Ontario will travel around 2696.0 mi. Flights usually cover this in 9h 38m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from San José Juan Santamaria Intl Airport to Ontario Airport?

    Prices for flights from San José Juan Santamaria Intl Airport to Ontario Airport refresh daily.

  • How many operators does momondo search for flights from San José Juan Santamaria Intl Airport to Ontario Airport?

  • How old do you have to be to fly from San José Juan Santamaria Intl 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 José Juan Santamaria Intl Airport to Ontario Airport.

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

    The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from San José to Ontario

Compare and see reviews for airlines that fly from San José to Ontario with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $267Free CancellationRating
7.4
9,205 reviews
Search United Airlines flights
AviancaPriceFrom $361Free CancellationRating
6.6
2,487 reviews
Search Avianca flights

Why use momondo?

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

It is quick and easy to find San José to Ontario 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 Ontario that suits you.

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

Yes. All flights to Ontario from San José on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San José 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 José to Ontario.

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

Price alerts on flights to Ontario from San José are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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