$232 Find Cheap Flights from Ontario to Costa Rica - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Costa Rica departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Ontario to Costa Rica

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
San José
San José1 stop$509
Liberia
Liberia1 stop$661
San José
San José1 stop$509
Liberia
Liberia1 stop$661

Book Cheap Ontario to Costa Rica Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Costa Rica that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Costa Rica

Sat, Nov 7 - Sat, Nov 14
Avianca Logo
10:30 pm - 11:25 amONT  Ontario-SJO San José Juan Santamaria Intl
10h 55m1 stop San Salvador El Salvador Intl
Avianca Logo
9:35 am - 8:55 pmSJO  San José Juan Santamaria Intl-ONT Ontario
13h 20m1 stop San Salvador El Salvador Intl
$509Avianca
Thu, Sep 17 - Sat, Sep 26
Avianca Logo
11:35 pm - 8:45 amONT  Ontario-SJO San José Juan Santamaria Intl
8h 10m1 stop San Salvador El Salvador Intl
Avianca Logo
9:40 am - 9:45 pmSJO  San José Juan Santamaria Intl-ONT Ontario
13h 05m1 stop San Salvador El Salvador Intl
$509Avianca
Tue, Sep 1 - Tue, Sep 15
Avianca Logo
11:35 pm - 8:45 amONT  Ontario-SJO San José Juan Santamaria Intl
8h 10m1 stop San Salvador El Salvador Intl
Avianca Logo
9:40 am - 9:45 pmSJO  San José Juan Santamaria Intl-ONT Ontario
13h 05m1 stop San Salvador El Salvador Intl
$509Avianca
Mon, Oct 26 - Mon, Nov 2
Southwest Logo
6:40 am - 7:40 pmONT  Ontario-SJO San José Juan Santamaria Intl
12h 00m2 stops Dallas Love Field Houston Hobby
Southwest Logo
2:10 pm - 11:35 pmSJO  San José Juan Santamaria Intl-ONT Ontario
11h 25m2 stops Houston Hobby Las Vegas Harry Reid Intl
$512Southwest
Fri, Nov 13 - Tue, Nov 17
Southwest Logo
6:50 pm - 1:05 pmONT  Ontario-SJO San José Juan Santamaria Intl
16h 15m2 stops Las Vegas Harry Reid Intl Houston Hobby
Southwest Logo
1:20 pm - 7:45 amSJO  San José Juan Santamaria Intl-ONT Ontario
20h 25m2 stops Orlando Las Vegas Harry Reid Intl
$559Southwest
Thu, Oct 1 - Tue, Oct 6
Southwest Logo
6:40 am - 7:40 pmONT  Ontario-SJO San José Juan Santamaria Intl
12h 00m2 stops Dallas Love Field Houston Hobby
Southwest Logo
1:00 pm - 10:00 pmSJO  San José Juan Santamaria Intl-ONT Ontario
10h 00m2 stops Houston Hobby Phoenix Sky Harbor Intl
$570Southwest
Fri, Jan 22 - Thu, Jan 28
United Airlines Logo
6:00 am - 6:16 pmONT  Ontario-SJO San José Juan Santamaria Intl
10h 16m1 stop Houston George Bush Intcntl
United Airlines Logo
8:45 am - 9:21 pmSJO  San José Juan Santamaria Intl-ONT Ontario
14h 36m1 stop Houston George Bush Intcntl
$580United Airlines
Mon, Oct 26 - Mon, Nov 2
United Airlines Logo
1:35 pm - 7:32 amONT  Ontario-SJO San José Juan Santamaria Intl
16h 57m1 stop San Francisco
United Airlines Logo
2:25 pm - 9:40 pmSJO  San José Juan Santamaria Intl-ONT Ontario
9h 15m1 stop Houston George Bush Intcntl
$580United Airlines
Mon, Oct 19 - Sat, Oct 24
American Airlines Logo
11:59 pm - 2:00 pmONT  Ontario-SJO San José Juan Santamaria Intl
13h 01m1 stop Dallas/Fort Worth
American Airlines Logo
1:00 pm - 11:52 pmSJO  San José Juan Santamaria Intl-ONT Ontario
11h 52m1 stop Dallas/Fort Worth
$580American Airlines
Sun, Oct 18 - Sat, Oct 24
American Airlines Logo
11:59 pm - 2:00 pmONT  Ontario-SJO San José Juan Santamaria Intl
13h 01m1 stop Dallas/Fort Worth
American Airlines Logo
1:00 pm - 9:11 pmSJO  San José Juan Santamaria Intl-ONT Ontario
9h 11m1 stop Dallas/Fort Worth
$580American Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Costa Rica flights

Get data-powered insights and trends into flights from Ontario to Costa Rica to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ontario to Costa Rica?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Costa Rica, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Costa Rica is October, when tickets cost $371 (return) on average. On the other hand, the most expensive months are July and September, when the average cost of round-trip tickets is $783 and $580 respectively.

Find deals

Good to know

Low season

August

Cheapest flight

$232
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Ontario to San José

FAQs - booking Costa Rica flights

  • How does KAYAK find such low prices on flights from Ontario to Costa Rica?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Costa Rica.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Costa Rica?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Costa Rica is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Costa Rica?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ontario to Costa Rica with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Costa Rica?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ontario to Costa Rica up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Ontario to Costa Rica

Information on your arrival and departure airports

Ontario (ONT)