ONT - SJO

$252 Find Cheap Flights from Ontario to San José - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$565
Typical prices: $393-$575
American Airlines
Thu 11/8Thu 11/15
ONT - SJO • 1 stop
Cheapest one-way
$252
Typical prices: $224-$306
Southwest
Sun 1/28
ONT - SJO • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Ontario and San José. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
October
Cheapest • 24% price drop
October
Most popular
Good to know
+1
Good to know
+1
Top layover airports
San Francisco (SFO)
Cheapest • Avg $478 (round-trip)
San Salvador El Salvador Intl (SAL)
Shortest trip • 8h 48m (one-way)
Insights
Insights
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We hope you love your trip to San José!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to San José (ONT-SJO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to San José

Sun, Nov 8 - Sun, Nov 15
American Airlines Logo
10:30 pm - 1:07 pmONT  Ontario-SJO San José Juan Santamaria Intl
12h 37m1 stop Charlotte Douglas
American Airlines Logo
3:54 pm - 9:40 amSJO  San José Juan Santamaria Intl-ONT Ontario
19h 46m2 stops Miami Dallas/Fort Worth
$565American Airlines
Sun, Nov 8 - Sun, Nov 15
American Airlines Logo
4:25 pm - 1:07 pmONT  Ontario-SJO San José Juan Santamaria Intl
18h 42m2 stops Phoenix Sky Harbor Intl Charlotte Douglas
American Airlines Logo
3:54 pm - 9:40 amSJO  San José Juan Santamaria Intl-ONT Ontario
19h 46m2 stops Miami Dallas/Fort Worth
$565American Airlines
Tue, Nov 10 - Sun, Nov 15
American Airlines Logo
1:23 pm - 1:07 pmONT  Ontario-SJO San José Juan Santamaria Intl
21h 44m2 stops Phoenix Sky Harbor Intl Charlotte Douglas
American Airlines Logo
3:54 pm - 9:40 amSJO  San José Juan Santamaria Intl-ONT Ontario
19h 46m2 stops Miami Dallas/Fort Worth
$565American Airlines
Sat, Feb 20 - Sat, Feb 27
Avianca Logo
10:45 pm - 8:50 amONT  Ontario-SJO San José Juan Santamaria Intl
8h 05m1 stop San Salvador El Salvador Intl
Avianca Logo
3:10 pm - 8:50 pmSJO  San José Juan Santamaria Intl-ONT Ontario
7h 40m1 stop San Salvador El Salvador Intl
$579Avianca
Tue, Jan 19 - Tue, Jan 26
Avianca Logo
10:45 pm - 8:50 amONT  Ontario-SJO San José Juan Santamaria Intl
8h 05m1 stop San Salvador El Salvador Intl
Avianca Logo
3:10 pm - 8:50 pmSJO  San José Juan Santamaria Intl-ONT Ontario
7h 40m1 stop San Salvador El Salvador Intl
$579Avianca
Tue, Feb 23 - Sat, Feb 27
Avianca Logo
10:45 pm - 8:50 amONT  Ontario-SJO San José Juan Santamaria Intl
8h 05m1 stop San Salvador El Salvador Intl
Avianca Logo
3:10 pm - 8:50 pmSJO  San José Juan Santamaria Intl-ONT Ontario
7h 40m1 stop San Salvador El Salvador Intl
$579Avianca
Fri, Oct 23 - Fri, Oct 30
Southwest Logo
5:40 am - 7:40 pmONT  Ontario-SJO San José Juan Santamaria Intl
13h 00m2 stops Denver Intl Houston Hobby
Southwest Logo
1:30 pm - 8:50 amSJO  San José Juan Santamaria Intl-ONT Ontario
20h 20m2 stops Houston Hobby Las Vegas Harry Reid Intl
$605Southwest
Thu, Oct 15 - Thu, Dec 3
Multiple Airlines Logo
12:50 pm - 12:05 pmONT  Ontario-SJO San José Juan Santamaria Intl
22h 15m3 stops León Del Bajio Monterrey Gen Mariano Escobedo Mexico City Benito Juarez
Multiple Airlines Logo
4:15 pm - 11:58 pmSJO  San José Juan Santamaria Intl-ONT Ontario
9h 43m1 stop Guadalajara Miguel Hidal
$642Multiple Airlines
Fri, Oct 23 - Fri, Oct 30
United Airlines Logo
1:52 pm - 7:15 amONT  Ontario-SJO San José Juan Santamaria Intl
16h 23m1 stop San Francisco
United Airlines Logo
1:25 pm - 9:40 pmSJO  San José Juan Santamaria Intl-ONT Ontario
9h 15m1 stop Houston George Bush Intcntl
$650United Airlines
Thu, Oct 15 - Mon, Oct 26
United Airlines Logo
4:03 pm - 7:15 amONT  Ontario-SJO San José Juan Santamaria Intl
14h 12m1 stop San Francisco
United Airlines Logo
11:35 am - 9:40 pmSJO  San José Juan Santamaria Intl-ONT Ontario
11h 05m1 stop Houston George Bush Intcntl
$650United Airlines
Booking Insights

Price, demand and travel trends for Ontario to San José flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Ontario to San José with more confidence.

How much is a round-trip flight from Ontario to San José?

Round-trip flights from Ontario to San José start at $565. Prices are typical for this route right now, with typical round-trip fares ranging from $393 to $575. The lowest price found in the past 5 days was $565 on American Airlines.

What's the cheapest day of the week to fly from Ontario to San José?

Monday is the cheapest day of the week to fly from Ontario to San José, it is 20% cheaper than the average day. Friday is the most expensive day with flight prices 27% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

•October is the cheapest month to fly from Ontario to San José at $371 round-trip.
•July ($600) and June ($575) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 61% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Ontario to San José flights

Low season

August

Cheapest flight

$252
Best time to beat the crowds but there is an average 13% increase in price.
Most popular time to fly and prices are also 24% lower on average.
Flight from Ontario to San José

When to book flights from Ontario to San José

Are your dates flexible? Find out the best times to travel from Ontario to San José based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Ontario to San José flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Ontario to San José?

    Flights from Ontario to San José usually depart from Ontario (ONT) and arrive at San José Juan Santamaria Intl (SJO).

  • What cabin classes can I book on flights from Ontario to San José?

    Only Economy Class is available on flights from Ontario to San José.

  • Which airports do connecting flights from Ontario to San José pass through?

    One-stop flights from Ontario to San José most commonly connect through:

    • Dallas/Fort Worth (DFW) - 32% of one-stop connections
    • San Salvador El Salvador Intl (SAL) - 28% of one-stop connections
    • Houston George Bush Intcntl (IAH) - 23% of one-stop connections
    • San Francisco (SFO) - 15% of one-stop connections

    Dallas/Fort Worth (DFW) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Ontario to San José?

    Yes. Being flexible with your travel dates can save you up to 38% on the Ontario to San José route. Monday is the cheapest departure day at $393 round-trip on average, while Friday is the most expensive at $624, a difference of $231. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in San José?

    Some of the most popular sights in San José are Parque Metropolitano La Sabana, Estadio Nacional de Costa Rica and Museo de Oro. These are among the most viewed places in San José on KAYAK.

  • How long is a flight from Ontario to San José?

    A nonstop flight from Ontario to San José takes 0h 00m, covering 2,685 miles.

  • Do I need a passport to fly from Ontario to San José?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Ontario to San José looking right now?

    One-way fares from Ontario to San José are currently higher than usual. Average one-way flight prices are about $342, which is 39% above the typical average for this route.

  • How much time can I save by choosing a different layover airport from Ontario to San José?

    Flying via San Salvador El Salvador Intl (SAL) gives the shortest average 1-stop total travel time at 8h 48m, compared with 8h 57m via Houston Hobby (HOU) and 10h 43m via Dallas/Fort Worth (DFW).

  • What is the time difference between Ontario and San José?

    San José is 1 hour ahead of Ontario (Central Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at San José Juan Santamaria Intl Airport (SJO)?

    San José Juan Santamaria Intl Airport (SJO) hosts 5 major car rental companies, with daily rates starting from around $1 for economy cars. Top options include:
    • Budget
    • Avis
    • Priceless
    • Routes Car & Truck Rentals
    • Payless

  • How much should I expect to pay for a Ontario to San José flight?

    Round-trip flights from Ontario to San José range from $393 to $575, with an average of $489 over the past 12 months. Anything below $393 counts as a good deal.

Your guide to booking Ontario to San José flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Monday departure instead of Friday. On this route, Monday flights average $393 - about $231 less than Friday (37% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ontario to San José trip for October. Fares historically average $371 round-trip in that month - typically $229 less than the most expensive month, which is July (based on the last 12 months).

More options for your flight from Ontario to San José

Complete your trip to San José with a hotel stay or car rental

Car rentals in San José
Hotels in San José
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