SJO - ONT

$248 Find Cheap Flights from San José to Ontario - Compare and Save

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Everything you should know

Cheapest round-trip
$449
Typical prices: $381-$579
American Airlines
Sun 9/23Wed 11/7
SJO - ONT • 2 stops
Cheapest one-way
$248
Typical prices: $197-$285
Multiple Airlines
Mon 12/3
SJO - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between San José and Ontario. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 27% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Houston George Bush Intcntl (IAH)
Cheapest • Avg $405 (round-trip)
Guatemala City La Aurora (GUA)
Shortest trip • 7h 34m (one-way)
Insights
Insights
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Flight Deals

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

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

Recent round-trip flight deals from San José to Ontario

Wed, Sep 23 - Sat, Nov 7
American Airlines Logo
2:57 pm - 9:29 amSJO  San José Juan Santamaria Intl-ONT Ontario
19h 32m2 stops Miami Dallas/Fort Worth
American Airlines Logo
1:23 pm - 1:01 pmONT  Ontario-SJO San José Juan Santamaria Intl
21h 38m2 stops Phoenix Sky Harbor Intl Miami
$449American Airlines
Thu, Oct 8 - Sat, Oct 17
American Airlines Logo
1:00 pm - 1:30 pmSJO  San José Juan Santamaria Intl-ONT Ontario
25h 30m1 stop Dallas/Fort Worth
American Airlines Logo
2:22 pm - 12:00 pmONT  Ontario-SJO San José Juan Santamaria Intl
20h 38m2 stops Dallas/Fort Worth Miami
$459American Airlines
Wed, Sep 23 - Sat, Nov 7
American Airlines Logo
2:57 pm - 11:47 amSJO  San José Juan Santamaria Intl-ONT Ontario
21h 50m2 stops Miami Dallas/Fort Worth
American Airlines Logo
12:42 pm - 1:46 pmONT  Ontario-SJO San José Juan Santamaria Intl
23h 04m1 stop Dallas/Fort Worth
$459American Airlines
Wed, Oct 28 - Wed, Nov 4
Southwest Logo
1:00 pm - 10:00 pmSJO  San José Juan Santamaria Intl-ONT Ontario
10h 00m2 stops Houston Hobby Phoenix Sky Harbor Intl
Southwest Logo
5:00 pm - 12:20 pmONT  Ontario-SJO San José Juan Santamaria Intl
17h 20m2 stops Las Vegas Harry Reid Intl Houston Hobby
$502Southwest
Thu, Feb 4 - Sun, Feb 7
United Airlines Logo
9:40 am - 12:20 pmSJO  San José Juan Santamaria Intl-ONT Ontario
28h 40m1 stop San Francisco
United Airlines Logo
1:33 pm - 1:22 pmONT  Ontario-SJO San José Juan Santamaria Intl
21h 49m2 stops San Francisco Houston George Bush Intcntl
$533United Airlines
Thu, Sep 24 - Sun, Nov 8
United Airlines Logo
1:25 pm - 10:23 amSJO  San José Juan Santamaria Intl-ONT Ontario
21h 58m2 stops Houston George Bush Intcntl San Francisco
United Airlines Logo
6:00 am - 8:39 pmONT  Ontario-SJO San José Juan Santamaria Intl
12h 39m1 stop Houston George Bush Intcntl
$533United Airlines
Fri, Sep 25 - Thu, Nov 5
United Airlines Logo
8:45 am - 10:59 pmSJO  San José Juan Santamaria Intl-ONT Ontario
15h 14m1 stop San Francisco
United Airlines Logo
1:35 pm - 8:32 amONT  Ontario-SJO San José Juan Santamaria Intl
16h 57m1 stop San Francisco
$533United Airlines
Sun, Nov 1 - Sun, Nov 8
Avianca Logo
9:40 am - 10:48 pmSJO  San José Juan Santamaria Intl-ONT Ontario
15h 08m1 stop San Francisco
Avianca Logo
9:25 am - 8:32 amONT  Ontario-SJO San José Juan Santamaria Intl
21h 07m1 stop San Francisco
$629Avianca
Thu, Oct 29 - Tue, Nov 3
Avianca Logo
3:10 pm - 9:50 pmSJO  San José Juan Santamaria Intl-ONT Ontario
7h 40m1 stop San Salvador El Salvador Intl
Avianca Logo
10:45 pm - 8:50 amONT  Ontario-SJO San José Juan Santamaria Intl
8h 05m1 stop San Salvador El Salvador Intl
$669Avianca
Tue, Oct 20 - Thu, Oct 29
Avianca Logo
3:10 pm - 9:45 pmSJO  San José Juan Santamaria Intl-ONT Ontario
7h 35m1 stop San Salvador El Salvador Intl
Avianca Logo
11:45 pm - 8:50 amONT  Ontario-SJO San José Juan Santamaria Intl
8h 05m1 stop San Salvador El Salvador Intl
$669Avianca
Booking Insights

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

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

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

Round-trip flights from San José to Ontario start at $449. Prices are typical for this route right now, with typical round-trip fares ranging from $381 to $579. The lowest price found in the past 5 days was $449 on American Airlines.

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

Wednesday is the cheapest day of the week to fly from San José to Ontario, it is 15% cheaper than the average day. Friday is the most expensive day with flight prices 14% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • January is the cheapest month to fly from San José to Ontario at $327 round-trip.
  • June ($617) and July ($555) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 88% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from San José to Ontario the cheapest?

Flights from San José to Ontario are cheapest in the last 2 weeks before departure, based on KAYAK prices tracked over the past 12 months. During this period, fares are 12% below average.

Find deals

Key details for San José to Ontario flights

Low season

May

Cheapest flight

$248
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from San José to Ontario

When to book flights from San José to Ontario

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

Your San José to Ontario 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 San José to Ontario?

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

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

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

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

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

    • San Francisco (SFO) - 33% of one-stop connections
    • Dallas/Fort Worth (DFW) - 26% of one-stop connections
    • San Salvador El Salvador Intl (SAL) - 25% of one-stop connections
    • Houston George Bush Intcntl (IAH) - 13% of one-stop connections

    San Francisco (SFO) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 26% on the San José to Ontario route. Wednesday is the cheapest departure day at $385 round-trip on average, while Friday is the most expensive at $514, a difference of $129. 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 Ontario?

    Some of the most popular sights in Ontario are Ontario Convention Center, Ontario Mills and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

  • How expensive are last-minute San José to Ontario flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 12% below the route average of $450. Booking late can sometimes save money on this route, but inventory is limited.

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

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

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

    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.

  • Have flight prices from San José to Ontario changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $459 to $3,122. That means the highest observed fare was about 7x higher than the lowest one.

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

    One-way fares from San José to Ontario are currently higher than usual. Average one-way flight prices are about $324, which is 32% above the typical average for this route.

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

    Flying via Guatemala City La Aurora (GUA) gives the shortest average 1-stop total travel time at 7h 34m, compared with 8h 57m via San Salvador El Salvador Intl (SAL) and 9h 58m via Las Vegas Harry Reid Intl (LAS).

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

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

  • What car rental options are available at Ontario Airport (ONT)?

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:
    · Fox
    · Thrifty
    · Europcar
    · Dollar
    · Alamo

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

    Round-trip flights from San José to Ontario range from $381 to $579, with an average of $450 over the past 12 months. Anything below $381 counts as a good deal.

Your guide to booking San José to Ontario 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 Wednesday departure instead of Friday. On this route, Wednesday flights average $385 - about $129 less than Friday (25% savings) based on the last 12 months.
  • If you're flexible on your travel dates, booking last minute (within 2 weeks of departure) tends to be around 12% cheaper than the typical fare over the last 12 months, based on KAYAK data.
  • If you can choose when to travel, plan your San José to Ontario trip for January. Fares historically average $327 round-trip in that month - typically $290 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.
    - Azure Hotel & Suites, Trademark Collection by Wyndham
    - La Quinta Inn & Suites by Wyndham Ontario Airport
    - Holiday Inn Ontario Airport By IHG

Everything you need to know for your flight from San José to Ontario

Information on your arrival and departure airports

San José (SJO)
Ontario (ONT)