Ontario

$136+ Cheap flights from Costa Rica to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — ONT
Jan 26 — Feb 21
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Costa Rica to Ontario with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Costa Rica to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Costa Rica (CR0) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$219
(United Airlines)

One-way from

$136
(United Airlines)
From Costa Rica to Ontario
One-way flight from Costa Rica to Ontario

Find flight deals from Costa Rica to Ontario

Cheapest flights from Costa Rica to Ontario
Explore the most affordable flight options available from Costa Rica to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/39:30 amSJO - ONT
1 stop29h 40mUnited Airlines
Sun 11/96:00 amONT - SJO
2 stops27h 25mUnited Airlines
Deal found 1/20$219
This Trip.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/113:32 pmSJO - ONT
1 stop9h 29mMultiple Airlines
Mon 2/1712:58 amONT - SJO
1 stop20h 14mMultiple Airlines
Deal found 1/21$355
This Cheapflightsfares deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/89:35 amSJO - ONT
1 stop13h 20mAvianca
Sat 4/2611:25 pmONT - SJO
1 stop13h 05mAvianca
Deal found 1/20$439
This United Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/63:25 pmLIR - ONT
2 stops21h 59mUnited Airlines
Tue 5/134:15 pmONT - LIR
2 stops18h 55mUnited Airlines
Deal found 1/21$471
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/512:59 amSJO - ONT
2 stops19h 37mAmerican Airlines
Mon 3/1710:27 pmONT - SJO
2 stops13h 27mAmerican Airlines
Deal found 1/20$523
This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/241:12 pmLIR - ONT
1 stop10h 17mDelta
Sat 11/810:59 pmONT - LIR
1 stop11h 44mDelta
Deal found 1/20$576
This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/81:13 pmSJO - ONT
1 stop10h 16mDelta
Fri 10/1710:59 pmONT - SJO
1 stop11h 49mDelta
Deal found 1/20$614
This Alaska Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/51:26 amSJO - ONT
3 stops23h 58mAlaska Airlines
Mon 3/177:14 pmONT - SJO
2 stops26h 45mAlaska Airlines
Deal found 1/20$615
This Alaska Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/49:00 amLIR - ONT
1 stop15h 59mAlaska Airlines
Fri 5/96:24 pmONT - LIR
1 stop20h 32mAlaska Airlines
Deal found 1/21$666

Find flights from Costa Rica to Ontario within your budget

Customize your flight search to find flights from Costa Rica 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, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Thu 5/29

5:30 am-9:10 pm

1 stop16h 40m

Ontario

Tue 6/3

6:00 am-7:15 am

1 stop24h 15m

$219

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Tue 2/11

3:32 pm-11:01 pm

1 stop9h 29m

Ontario

Mon 2/17

12:58 am-11:12 pm

1 stop20h 14m

$355

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Tue 4/8

9:35 am-9:55 pm

1 stop13h 20m

Ontario

Sat 4/26

11:25 pm-1:30 pm

1 stop13h 05m

$439

LiberiaOntario

LIR - ONT

LIRONT

Liberia

Tue 5/6

3:25 pm-12:24 pm

2 stops21h 59m

Ontario

Mon 5/12

4:15 pm-12:10 pm

2 stops18h 55m

$471

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Wed 3/5

12:59 am-6:36 pm

2 stops19h 37m

Ontario

Mon 3/17

10:27 pm-12:54 pm

2 stops13h 27m

$523

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Wed 3/5

1:26 am-11:24 pm

3 stops23h 58m

Ontario

Mon 3/17

7:14 pm-10:59 pm

2 stops26h 45m

$615

LiberiaOntario

LIR - ONT

LIRONT

Liberia

Sun 5/4

9:00 am-11:59 pm

1 stop15h 59m

Ontario

Fri 5/9

6:24 pm-3:56 pm

1 stop20h 32m

$666

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Fri 2/28

2:19 pm-10:52 pm

1 stop10h 33m

Ontario

Mon 3/3

7:05 am-10:12 pm

1 stop13h 07m

$930

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Tue 1/28

8:45 am-8:51 pm

2 stops14h 06m

$136

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Tue 4/1

3:31 pm-11:07 pm

1 stop8h 36m

$158

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 14 results
1
2

Best time to book a flight from Costa Rica to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Costa Rica with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Costa Rica to Ontario

Get recent, data-driven insights about flights from Costa Rica to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Costa Rica to Ontario?

Currently, August is the cheapest month in which you can book a flight from Costa Rica to Ontario (average of $246). Flying from Costa Rica to Ontario in March is currently the most expensive (average of $310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CR to ONT?

Find hourly flight availability from Costa Rica to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

When flying from Costa Rica to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated January 21, 2025.
To help decide which airline to fly from Costa Rica to Ontario, see what other customers have to say about United Airlines, Avianca and Alaska Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
9,706 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 10

The attention and efficiency of the staff and the good handling of the pilot

8.0
Very good
9,706 reviews
8.0
Very good
9,706 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 10

The attention and efficiency of the staff and the good handling of the pilot

8.0
Very good
8,521 reviews
8.0
Very good
9,706 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 10

The attention and efficiency of the staff and the good handling of the pilot

7.4
Good
8,985 reviews
8.0
Very good
9,706 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 10

The attention and efficiency of the staff and the good handling of the pilot

7.2
Good
10,000 reviews
8.0
Very good
9,706 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 10

The attention and efficiency of the staff and the good handling of the pilot

6.9
Okay
2,579 reviews
8.0
Very good
9,706 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 10

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

Find useful and relevant information for your journey from Costa Rica to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Ontario from Costa Rica?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Ontario from Costa Rica.

  • What are the cheapest airlines to fly from Costa Rica to Ontario one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $136. However, be on the lookout for offers from Avianca and Delta, as they are both options that can get you from Costa Rica to Ontario for a low price.

  • Can I find deals for flights from Costa Rica to Ontario that include hotel bookings?

    Yes. In addition to deals on Costa Rica to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Costa Rica to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Costa Rica to Ontario.

  • Can I find deals for business class flights from Costa Rica to Ontario?

    Yes. Cheapflights offers flight deals from Costa Rica to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Costa Rica to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Costa Rica to Ontario (average of $246). Flying from Costa Rica to Ontario in March is currently the most expensive (average of $310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Costa Rica to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Costa Rica to Ontario

Discover the top 3 airlines that operate flights from Costa Rica to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$308Average$418FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$349Average$478FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$408Average$614FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.