Cheap flights from Ontario (ONT) to Costa Rica from $146

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 8/19. 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
May 21 — May 281

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

To save up to 15% 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 $406 1-2 weeks out and tickets from $486 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 $415. You can even find prices in September for less than $415, 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 41%.

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 2,637,452 searches. Data last updated May 16, 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.
Mon 11/1111:30 pmONT - SJO
2 stops21h 20mAvianca
Tue 11/196:10 amSJO - ONT
2 stops17h 30mAvianca
Deal found 5/15$314
Tue 11/1211:30 pmONT - SJO
2 stops29h 50mAvianca
Tue 11/196:10 amSJO - ONT
2 stops17h 30mAvianca
Deal found 5/15$324
Mon 11/1111:30 pmONT - SJO
1 stop7h 10mAvianca
Tue 11/196:10 amSJO - ONT
2 stops17h 30mAvianca
Deal found 5/15$326
Mon 8/511:30 pmONT - SJO
1 stop8h 10mAvianca
Tue 8/139:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/16$327
Thu 8/2911:30 pmONT - SJO
1 stop10h 55mAvianca
Tue 9/39:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/15$356
Tue 11/1211:30 pmONT - SJO
1 stop7h 10mAvianca
Sun 11/176:10 amSJO - ONT
2 stops17h 30mAvianca
Deal found 5/15$357
Tue 7/3011:30 pmONT - SJO
1 stop10h 55mAvianca
Tue 8/139:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/15$373
Sun 8/2511:30 pmONT - SJO
1 stop8h 10mAvianca
Mon 9/26:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 5/15$374
Mon 8/1211:30 pmONT - SJO
1 stop8h 10mAvianca
Sun 8/185:45 amSJO - ONT
2 stops17h 15mAvianca
Deal found 5/15$375

Cheap American Airlines flights from Ontario to Costa Rica

Explore cheap flight options specifically provided by American Airlines 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 2,637,452 searches. Data last updated May 16, 2024.
Have a look at some of the cheapest available American Airlines 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.
Sat 10/511:59 pmONT - LIR
1 stop12h 13mAmerican Airlines
Wed 10/162:02 pmLIR - ONT
1 stop8h 40mAmerican Airlines
Deal found 5/16$459
Sat 10/52:52 pmONT - LIR
2 stops19h 19mAmerican Airlines
Wed 10/162:02 pmLIR - ONT
1 stop8h 40mAmerican Airlines
Deal found 5/16$463
Sat 10/124:45 pmONT - LIR
2 stops19h 27mAmerican Airlines
Sat 10/1912:58 pmLIR - ONT
2 stops21h 38mAmerican Airlines
Deal found 5/14$488
Thu 9/1211:59 pmONT - LIR
1 stop12h 13mAmerican Airlines
Wed 9/182:02 pmLIR - ONT
1 stop10h 24mAmerican Airlines
Deal found 5/15$511
Sat 8/1011:59 pmONT - SJO
1 stop12h 26mAmerican Airlines
Wed 8/282:00 pmSJO - ONT
1 stop10h 49mAmerican Airlines
Deal found 5/14$528
Wed 8/219:20 amONT - SJO
2 stops11h 48mAmerican Airlines
Wed 8/282:00 pmSJO - ONT
1 stop9h 03mAmerican Airlines
Deal found 5/15$533
Sun 7/216:10 amONT - SJO
1 stop14h 51mAmerican Airlines
Wed 7/2411:59 pmSJO - ONT
1 stop10h 55mAmerican Airlines
Deal found 5/15$545
Sat 5/2511:30 pmONT - LIR
2 stops35h 29mAmerican Airlines
Sun 6/22:35 pmLIR - ONT
2 stops29h 24mAmerican Airlines
Deal found 5/14$784
Wed 5/227:40 pmONT - SJO
2 stops16h 31mAmerican Airlines
Mon 5/272:30 pmSJO - ONT
2 stops29h 29mAmerican Airlines
Deal found 5/15$850

Cheap Ontario to Costa Rica flights in May & June 2024

Find cheap flight options from Ontario to Costa Rica specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 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 5/184:52 pmONT - SJO
1 stop14h 54mMultiple Airlines
Tue 5/289:36 amSJO - ONT
2 stops24h 28mMultiple Airlines
Deal found 5/15$393
Sat 5/254:52 pmONT - SJO
1 stop14h 54mMultiple Airlines
Tue 5/289:36 amSJO - ONT
2 stops24h 28mMultiple Airlines
Deal found 5/15$419
Tue 6/2511:30 pmONT - SJO
1 stop8h 10mMultiple Airlines
Tue 7/95:10 amSJO - ONT
2 stops26h 57mMultiple Airlines
Deal found 5/16$461
Tue 6/2511:30 pmONT - SJO
1 stop10h 55mAvianca
Tue 7/169:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/14$463
Mon 6/1711:30 pmONT - SJO
1 stop8h 10mAvianca
Mon 6/249:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/15$468
Tue 5/2111:30 pmONT - SJO
1 stop13h 05mAvianca
Mon 6/39:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/15$476
Sun 6/2311:30 pmONT - SJO
1 stop8h 10mAvianca
Thu 7/189:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/15$477
Tue 5/2811:30 pmONT - SJO
1 stop13h 05mAvianca
Mon 6/39:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/15$486
Sun 6/2311:30 pmONT - SJO
1 stop8h 10mAvianca
Tue 7/91:30 pmSJO - ONT
1 stop9h 30mAvianca
Deal found 5/16$499

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 2,637,452 searches. Data last updated May 16, 2024.
These are some of the most attractive deals on flights from Ontario to Costa Rica in 2024. Check back soon for alternative fares.
Mon 11/1111:30 pmONT - SJO
2 stops21h 20mAvianca
Tue 11/196:10 amSJO - ONT
2 stops17h 30mAvianca
Deal found 5/15$314
Tue 11/1211:30 pmONT - SJO
2 stops29h 50mAvianca
Tue 11/196:10 amSJO - ONT
2 stops17h 30mAvianca
Deal found 5/15$324
Mon 11/1111:30 pmONT - SJO
1 stop7h 10mAvianca
Tue 11/196:10 amSJO - ONT
2 stops17h 30mAvianca
Deal found 5/15$326
Mon 8/1211:30 pmONT - SJO
1 stop8h 10mAvianca
Sat 8/179:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/16$327
Mon 8/511:30 pmONT - SJO
1 stop8h 10mAvianca
Mon 8/124:25 pmSJO - ONT
2 stops30h 35mAvianca
Deal found 5/16$339
Thu 8/2911:30 pmONT - SJO
1 stop10h 55mAvianca
Tue 9/39:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/15$356
Tue 11/1211:30 pmONT - SJO
1 stop7h 10mAvianca
Sun 11/176:10 amSJO - ONT
2 stops17h 30mAvianca
Deal found 5/15$357
Mon 8/511:30 pmONT - SJO
2 stops30h 50mAvianca
Mon 8/124:25 pmSJO - ONT
2 stops30h 35mAvianca
Deal found 5/16$359
Thu 11/1411:30 pmONT - SJO
2 stops32h 10mAvianca
Mon 11/184:55 pmSJO - ONT
2 stops30h 45mAvianca
Deal found 5/15$370

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 2,637,452 searches. Data last updated May 16, 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.
Sat 5/254:52 pmONT - SJO
1 stop14h 54mMultiple Airlines
Tue 5/289:36 amSJO - ONT
2 stops24h 28mMultiple Airlines
Deal found 5/15$419
Tue 5/2111:30 pmONT - SJO
1 stop13h 05mAvianca
Mon 6/39:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/15$476
Tue 5/2111:30 pmONT - SJO
1 stop13h 05mAvianca
Thu 5/309:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/16$571
Tue 5/2111:30 pmONT - SJO
1 stop10h 55mAvianca
Sat 5/259:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/15$581
Sat 5/2511:30 pmONT - SJO
1 stop10h 55mAvianca
Sun 6/29:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/15$583
Sat 5/2511:30 pmONT - SJO
1 stop10h 55mAvianca
Tue 5/289:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/15$606
Sat 5/2511:30 pmONT - SJO
1 stop10h 55mAvianca
Sat 6/19:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/15$654
Thu 5/2311:30 pmONT - SJO
1 stop10h 55mAvianca
Thu 5/309:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 5/16$672
Sat 5/256:00 amONT - LIR
1 stop10h 58mUnited Airlines
Sun 6/29:00 amLIR - ONT
1 stop28h 45mUnited Airlines
Deal found 5/14$702

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 2,637,452 searches. Data last updated May 16, 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.
Mon 8/1911:30 pmONT - SJO
1 stop8h 10mAvianca
Deal found 5/15$146
Tue 8/611:30 pmONT - SJO
1 stop8h 10mAvianca
Deal found 5/15$147
Thu 8/1511:30 pmONT - SJO
1 stop8h 10mAvianca
Deal found 5/15$152
Thu 8/1511:30 pmONT - SJO
2 stops21h 15mAvianca
Deal found 5/15$187
Sun 7/2111:30 pmONT - SJO
1 stop10h 55mAvianca
Deal found 5/15$193
Sat 7/1311:30 pmONT - SJO
1 stop10h 55mAvianca
Deal found 5/14$198
Tue 6/2511:30 pmONT - SJO
1 stop8h 10mAvianca
Deal found 5/15$208
Sat 7/611:30 pmONT - SJO
1 stop8h 10mAvianca
Deal found 5/15$213
Sat 6/2911:30 pmONT - SJO
1 stop10h 55mAvianca
Deal found 5/15$217

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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$314 - $527

Route

Depart

Return

Price

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Mon 11/11

2 stops21h 20m

San José Juan Santamaria Intl

Tue 11/19

2 stops17h 30m

$314

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Tue 11/12

2 stops29h 50m

San José Juan Santamaria Intl

Tue 11/19

2 stops17h 30m

$324

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Mon 11/11

1 stop7h 10m

San José Juan Santamaria Intl

Tue 11/19

2 stops17h 30m

$326

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Mon 8/5

1 stop8h 10m

San José Juan Santamaria Intl

Tue 8/13

1 stop13h 25m

$327

OntarioLiberia

ONT - LIR

ONTLIR

Ontario

Sun 10/27

2 stops23h 13m

Liberia

Tue 11/5

1 stop10h 20m

$373

OntarioLiberia

ONT - LIR

ONTLIR

Ontario

Sun 10/27

2 stops23h 13m

Liberia

Tue 11/5

2 stops34h 34m

$388

OntarioLiberia

ONT - LIR

ONTLIR

Ontario

Tue 11/5

1 stop8h 08m

Liberia

Tue 11/12

1 stop15h 02m

$389

OntarioLiberia

ONT - LIR

ONTLIR

Ontario

Sat 10/5

1 stop12h 13m

Liberia

Wed 10/16

1 stop8h 40m

$459

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Wed 6/19

2 stops23h 20m

San José Juan Santamaria Intl

Thu 7/11

1 stop9h 30m

$527

Flights are sorted by cheapest first

Deals found on 5/15

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 May 16, 2024.
Read reviews from past customers who have flown Avianca, American Airlines and United Airlines from Ontario to Costa Rica. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
10,673 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Reviews

1 / 10

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

8.0
Very good
10,673 reviews
8.0
Very good
10,673 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Reviews

1 / 10

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

8.0
Very good
2,707 reviews
8.0
Very good
10,673 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Reviews

1 / 10

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

7.6
Good
4,472 reviews
8.0
Very good
10,673 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Reviews

1 / 10

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

7.5
Good
3,765 reviews
8.0
Very good
10,673 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Reviews

1 / 10

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

7.4
Good
10,924 reviews
8.0
Very good
10,673 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

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 Avianca for just $314, but on average you can expect to pay $370.

  • Are there last-minute flights available from Ontario to Costa Rica for under $500?

    There are currently 20+ open flights from Ontario to Costa Rica within the next 7 days for less than $500.

  • 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 $146. Copa Airlines flights start at $235 while deals on United Airlines start at $272 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), Buenos Aires Airport (BAI) 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 on your Ontario to Costa Rica flight 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 Ontario to Costa Rica 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 find direct flights from Ontario to Costa Rica.

  • 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 flying from Ontario to Costa Rica 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.

  • 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 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 5/16.

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 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$245Average$392FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapest$425Average$717FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$482Average$679FlexibilityNo 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.

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.