Cheap flights from Ontario (ONT) to Costa Rica from $144

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 5/10. 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.
ONT — SJO
Apr 2 — Apr 91

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

To save up to 21% on this flight, we recommend booking at least 50 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Ontario to Costa Rica from $482 1-2 weeks out and tickets from $511 for flights departing within the next 72 hours.

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

The best pricing can be found in the month of September. Prices to Costa Rica from Ontario average $441. You can even find prices in September for less than $441, as users have found deals to Costa Rica from as low as $158. The month of December appears to be one of the more expensive times to travel to Costa Rica from Ontario. Flying in the targeted month can save you up to 51%.

When is the cheapest time to fly from Ontario to Costa Rica (ONT - CR)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Costa Rica as you normally would.

Cheap Avianca flights from Ontario to Costa Rica

Explore cheap flight options specifically provided by Avianca for the route between Ontario and Costa Rica. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
Find some of the cheapest Avianca flights traveling from Ontario to Costa Rica. Come back soon if you're not finding the exact deal you're looking for.
Thu 4/2511:30 pmONT - SJO
1 stop10h 55mAvianca
Mon 5/69:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$325
Sun 5/1211:30 pmONT - SJO
1 stop10h 55mAvianca
Sun 5/196:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 3/27$327
Sun 5/1211:30 pmONT - SJO
2 stops22h 20mAvianca
Sun 5/196:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 3/27$330
Mon 4/2211:30 pmONT - SJO
1 stop8h 10mAvianca
Mon 4/299:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$332
Mon 5/2011:30 pmONT - SJO
1 stop8h 10mAvianca
Mon 5/279:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/28$333
Sat 4/2711:30 pmONT - SJO
1 stop10h 55mAvianca
Sun 5/56:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 3/27$335
Mon 4/2211:30 pmONT - SJO
1 stop8h 10mAvianca
Sat 4/279:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/26$340
Mon 4/1511:30 pmONT - SJO
1 stop18h 20mAvianca
Tue 4/239:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$342
Sun 4/2111:30 pmONT - SJO
1 stop10h 55mAvianca
Sun 5/195:10 amSJO - ONT
1 stop17h 50mAvianca
Deal found 3/27$343

Cheap Delta flights from Ontario to Costa Rica

Explore cheap flight options specifically provided by Delta for the route between Ontario and Costa Rica. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
Have a look at some of the cheapest available Delta flights departing from Ontario and landing in Costa Rica. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Fri 4/2610:00 pmONT - SJO
1 stop12h 52mDelta
Thu 5/27:00 amSJO - ONT
1 stop17h 02mDelta
Deal found 3/27$502
Mon 5/135:45 amONT - SJO
2 stops37h 28mDelta
Wed 5/227:00 amSJO - ONT
2 stops17h 43mDelta
Deal found 3/28$504
Mon 5/1310:00 pmONT - SJO
1 stop21h 13mDelta
Wed 5/227:00 amSJO - ONT
2 stops17h 43mDelta
Deal found 3/28$542
Sun 5/195:45 amONT - SJO
2 stops37h 28mDelta
Thu 5/307:00 amSJO - ONT
1 stop16h 47mDelta
Deal found 3/28$544
Sat 5/1812:50 pmONT - SJO
1 stop30h 23mDelta
Thu 5/307:00 amSJO - ONT
1 stop16h 47mDelta
Deal found 3/28$555
Sat 5/181:20 pmONT - SJO
2 stops29h 53mDelta
Thu 5/307:00 amSJO - ONT
1 stop16h 47mDelta
Deal found 3/28$565

Cheap Ontario to Costa Rica flights in March & April 2024

Find cheap flight options from Ontario to Costa Rica specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,238,496 searches. Prices were last updated on March 28, 2024.
These are some of the most attractive deals on flights from Ontario to Costa Rica in 2024. Check back soon for alternative fares.
Thu 4/2511:30 pmONT - SJO
1 stop10h 55mAvianca
Mon 5/69:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$325
Mon 4/2211:30 pmONT - SJO
1 stop8h 10mAvianca
Mon 4/299:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$332
Sat 4/2711:30 pmONT - SJO
1 stop10h 55mAvianca
Sun 5/56:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 3/27$335
Mon 4/2211:30 pmONT - SJO
1 stop8h 10mAvianca
Sat 4/279:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/26$340
Mon 4/1511:30 pmONT - SJO
1 stop18h 20mAvianca
Tue 4/239:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$342
Sun 4/2111:30 pmONT - SJO
1 stop10h 55mAvianca
Sun 5/195:10 amSJO - ONT
1 stop17h 50mAvianca
Deal found 3/27$343
Tue 4/911:30 pmONT - SJO
1 stop10h 55mAvianca
Thu 4/189:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$346
Sat 4/2711:30 pmONT - SJO
1 stop10h 55mAvianca
Sun 5/55:10 amSJO - ONT
1 stop17h 50mAvianca
Deal found 3/27$350
Sun 4/1411:30 pmONT - SJO
1 stop10h 55mAvianca
Thu 4/189:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$354

Ontario to Costa Rica 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Costa Rica in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
These are some of the most attractive deals on flights from Ontario to Costa Rica in 2024. Check back soon for alternative fares.
Sat 5/47:26 amONT - SJO
2 stops24h 10mMultiple Airlines
Mon 5/209:36 amSJO - ONT
1 stop13h 38mMultiple Airlines
Deal found 3/27$320
Thu 4/2511:30 pmONT - SJO
1 stop10h 55mAvianca
Mon 5/69:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$325
Sun 5/1211:30 pmONT - SJO
1 stop10h 55mAvianca
Sun 5/196:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 3/27$327
Sun 5/1211:30 pmONT - SJO
2 stops22h 20mAvianca
Sun 5/196:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 3/27$330
Mon 4/2211:30 pmONT - SJO
1 stop8h 10mAvianca
Mon 4/299:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$332
Sat 5/1111:30 pmONT - SJO
1 stop10h 55mMultiple Airlines
Sat 5/189:36 amSJO - ONT
2 stops21h 41mMultiple Airlines
Deal found 3/27$334
Sat 4/2711:30 pmONT - SJO
1 stop10h 55mAvianca
Sun 5/56:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 3/27$335
Sat 8/1711:30 pmONT - SJO
1 stop8h 10mAvianca
Sat 8/244:25 pmSJO - ONT
2 stops30h 35mAvianca
Deal found 3/27$337
Mon 4/2211:30 pmONT - SJO
1 stop8h 10mAvianca
Sat 4/279:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/26$340

Ontario to Costa Rica flights leaving soon

Find last-minute flight options from Ontario to Costa Rica for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
Have a look at some of the flights available from Ontario to Costa Rica departing last-minute. To prevent any unwanted surprises, users should verify their flight info before booking.
Tue 4/911:30 pmONT - SJO
1 stop10h 55mAvianca
Thu 4/189:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$346
Mon 4/811:30 pmONT - SJO
1 stop18h 20mAvianca
Tue 4/169:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$363
Tue 4/911:30 pmONT - SJO
1 stop10h 55mAvianca
Mon 4/159:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$377
Mon 4/811:30 pmONT - SJO
1 stop18h 20mAvianca
Mon 4/159:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$394
Sun 4/711:30 pmONT - SJO
1 stop8h 10mAvianca
Tue 4/169:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$398
Wed 4/1010:49 pmONT - SJO
2 stops32h 47mMultiple Airlines
Tue 4/169:35 amSJO - ONT
1 stop13h 25mMultiple Airlines
Deal found 3/26$410
Sat 4/611:30 pmONT - SJO
1 stop10h 55mAvianca
Thu 4/189:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$412
Sun 4/711:30 pmONT - SJO
1 stop8h 10mAvianca
Mon 4/159:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$429
Sat 4/611:30 pmONT - SJO
1 stop10h 55mAvianca
Mon 4/159:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 3/27$443

One-way flights to Costa Rica from Ontario

Search for one-way flight options from Ontario to Costa Rica. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
If you're seeking multiple options on one-way flights from Ontario to Costa Rica, be sure to check out these deals, which are updated often. Those seeking round-trip flights from Ontario to Costa Rica should utilize the search form at the the top of the page.
Fri 5/1010:29 pmONT - SJO
2 stops33h 17mMultiple Airlines
Deal found 3/26$144
Mon 5/611:30 pmONT - SJO
1 stop8h 10mAvianca
Deal found 3/27$145
Tue 5/2111:30 pmONT - SJO
1 stop13h 05mAvianca
Deal found 3/27$146
Tue 4/1611:30 pmONT - SJO
1 stop10h 55mAvianca
Deal found 3/27$147
Sun 4/1411:30 pmONT - SJO
1 stop10h 55mAvianca
Deal found 3/27$154
Mon 4/2211:30 pmONT - SJO
1 stop8h 10mAvianca
Deal found 3/27$161
Mon 4/1511:30 pmONT - SJO
1 stop18h 20mAvianca
Deal found 3/27$163
Fri 5/1010:29 pmONT - SJO
3 stops24h 35mMultiple Airlines
Deal found 3/26$164
Sun 6/911:30 pmONT - SJO
1 stop8h 10mAvianca
Deal found 3/28$187

Find flights from Ontario to Costa Rica within your budget

Customize your flight search to find flights from Ontario to Costa Rica 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 3,238,496 searches. Data last updated March 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$320 - $502

Route

Depart

Return

Price

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Sat 5/4

2 stops24h 10m

San José Juan Santamaria Intl

Mon 5/20

1 stop13h 38m

$320

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Thu 4/25

1 stop10h 55m

San José Juan Santamaria Intl

Mon 5/6

1 stop13h 25m

$325

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Sun 5/12

1 stop10h 55m

San José Juan Santamaria Intl

Sun 5/19

2 stops16h 50m

$327

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Sun 5/12

2 stops22h 20m

San José Juan Santamaria Intl

Sun 5/19

2 stops16h 50m

$330

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Sat 5/11

1 stop10h 55m

San José Juan Santamaria Intl

Sat 5/18

2 stops21h 41m

$334

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Fri 4/19

2 stops30h 12m

San José Juan Santamaria Intl

Sun 4/28

2 stops46h 42m

$449

OntarioLiberia

ONT - LIR

ONTLIR

Ontario

Wed 5/1

2 stops31h 25m

Liberia

Tue 5/7

2 stops19h 34m

$449

OntarioLiberia

ONT - LIR

ONTLIR

Ontario

Sun 5/5

1 stop12h 11m

Liberia

Wed 5/8

1 stop10h 51m

$459

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Fri 4/26

1 stop12h 52m

San José Juan Santamaria Intl

Thu 5/2

1 stop17h 02m

$502

Flights are sorted by cheapest first

Deals found on 3/27

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Costa Rica

Get insights into the airlines that provide service to Costa Rica. 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 Costa Rica. Reviews last updated March 28, 2024.
Read reviews from past customers who have flown Avianca, Delta and American Airlines from Ontario to Costa Rica. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
11,418 reviews

Comfort

7.9

Food

7.5

Entertainment

8.0

Crew

8.6

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

8.1
Very good
11,418 reviews
8.1
Very good
11,418 reviews

Comfort

7.9

Food

7.5

Entertainment

8.0

Crew

8.6

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

7.7
Good
4,840 reviews
8.1
Very good
11,418 reviews

Comfort

7.9

Food

7.5

Entertainment

8.0

Crew

8.6

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

7.6
Good
4,106 reviews
8.1
Very good
11,418 reviews

Comfort

7.9

Food

7.5

Entertainment

8.0

Crew

8.6

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

7.4
Good
11,481 reviews
8.1
Very good
11,418 reviews

Comfort

7.9

Food

7.5

Entertainment

8.0

Crew

8.6

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

7.3
Good
15,202 reviews
8.1
Very good
11,418 reviews

Comfort

7.9

Food

7.5

Entertainment

8.0

Crew

8.6

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from Ontario to Costa Rica. 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 from for flights from Ontario to Costa Rica?

    If you book a flight to Costa Rica from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • Can I find flights from Ontario to Costa Rica for under $400 on Cheapflights?

    Yes, there are multiple flights from Ontario to Costa Rica for under $400. The cheapest flight booked recently is on Multiple Airlines for just $320, but on average you can expect to pay $340.

  • Are there last-minute flights available from Ontario to Costa Rica for under $400?

    There are currently 20+ open flights from Ontario to Costa Rica within the next 7 days for less than $400.

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

    To fly one-way, consider booking your trip with Avianca, which is currently one of the cheapest options available, starting at $145. United Airlines flights start at $207 while deals on American Airlines start at $212 one-way.

  • What are the most popular airlines that fly from Ontario to Costa Rica?

  • What does ONT to SJO mean?

    ONT and SJO are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. ONT to SJO refers to a flight route from Ontario Airport to San José Juan Santamaria Intl Airport. Liberia Airport (LIR), Limon Airport (LIO), San José Tobias Bolanos Intl Airport (SYQ), Tamarindo Airport (TNO), Quepos Airport (XQP) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Ontario to Costa Rica that include extra baggage allowance?

    The amount of baggage you can bring depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Costa Rica with specific airlines?

    Yes, Cheapflights allows you to browse and filter flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to see available direct flights.

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

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

  • Can I find deals for flights from Ontario to Costa Rica that allow pets onboard?

    Many airlines do offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • How recently were the Ontario to Costa Rica flight deals updated?

    The Ontario to Costa Rica flight deals you see on this page were last updated on 3/27.

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 Ontario to Costa Rica
See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Ontario to Costa Rica

Discover the top 3 airlines that operate flights from Ontario to Costa Rica. 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 3,238,496 searches. Data last updated March 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$270Average$420FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapest$370Average$574FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$484Average$720FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Search flights from Ontario to Costa Rica by cabin class

Find flights from Ontario to Costa Rica, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Costa Rica?

Cheapflights makes it easy to find Ontario to Costa Rica flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Costa Rica?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to Costa Rica for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ontario to Costa Rica with no change fees?

Yes, we can. To see specific flights from Ontario to Costa Rica with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Ontario to Costa Rica become cheaper?

Yes! Start tracking prices for Ontario to Costa Rica flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

Can I find deals on last-minute flights from Ontario to Costa Rica?

Yes, you can often find last-minute deals on Ontario to Costa Rica flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

How can I compare prices from different travel booking sites for flights from Ontario to Costa Rica?

Cheapflights aggregates prices from various travel booking sites. This allows you to compare prices and choose the best deal.

Can I find deals for flights from Ontario to Costa Rica that offer flexible cancellation policies?

Cancellation policies vary by airline and fare type. After entering your flight details, you can view the cancellation policies for each deal in the search results. Some deals may offer flexibility in terms of cancellation and changes.

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.