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$107+ Cheap flights from Costa Rica to Illinois

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — ORD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Costa Rica to Illinois

Keep the following information in mind while searching for Costa Rica to Illinois flight deals. Data was last updated September 16, 2025.

Round-trip from

$184
(Cheapflightsfares)

One-way from

$107
(Cheapflightsfares)

Popular in

June

Cheapest in

November

Average price

$446

Good round-trip deal

$395 or less

Good one-way deal

$194 or less
From Costa Rica to Illinois
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One-way flight from Costa Rica to Illinois
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Highest demand for flights based on searches. 3% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Costa Rica to Illinois.
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Price to beat on a one-way flight from Costa Rica to Illinois.
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Find flight deals from Costa Rica to Illinois

Cheapest flights from Costa Rica to Illinois
Explore the most affordable flight options available from Costa Rica to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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.
Wed 10/812:35 pmSJO - ORD
1 stop10h 10mSpirit Airlines
Tue 10/145:05 amORD - SJO
1 stop7h 25mSpirit Airlines
Deal found 9/15$184
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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.
Wed 10/112:19 pmSJO - ORD
1 stop9h 29mSpirit Airlines
Sat 10/117:43 pmORD - SJO
1 stop16h 47mSpirit Airlines
Deal found 9/15$187
This eDestinos deal was found by Cheapflights users on 9/14. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2512:19 pmSJO - ORD
1 stop9h 29mSpirit Airlines
Thu 10/26:44 pmORD - SJO
1 stop17h 30mSpirit Airlines
Deal found 9/14$192
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Wed 10/812:35 pmSJO - ORD
1 stop10h 10mSpirit Airlines
Thu 10/167:43 pmORD - SJO
1 stop16h 47mSpirit Airlines
Deal found 9/14$195
This Priceline deal was found by Cheapflights users on 9/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/812:35 pmSJO - ORD
1 stop10h 10mSpirit Airlines
Sat 10/187:43 pmORD - SJO
1 stop16h 47mSpirit Airlines
Deal found 9/15$198
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2312:19 pmSJO - ORD
1 stop9h 29mSpirit Airlines
Tue 9/305:05 amORD - SJO
1 stop7h 09mSpirit Airlines
Deal found 9/16$199
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Fri 10/312:19 pmSJO - ORD
1 stop9h 29mSpirit Airlines
Fri 10/107:43 pmORD - SJO
1 stop16h 47mSpirit Airlines
Deal found 9/14$200
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Thu 10/212:19 pmSJO - ORD
1 stop9h 29mSpirit Airlines
Thu 10/97:43 pmORD - SJO
1 stop16h 47mSpirit Airlines
Deal found 9/14$202
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Fri 10/1012:35 pmSJO - ORD
1 stop10h 10mSpirit Airlines
Sat 10/187:43 pmORD - SJO
1 stop16h 47mSpirit Airlines
Deal found 9/14$204
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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.
Wed 10/112:19 pmSJO - ORD
1 stop9h 29mSpirit Airlines
Tue 10/77:43 pmORD - SJO
1 stop16h 47mSpirit Airlines
Deal found 9/15$207
This KAYAK deal was found by Cheapflights users on 9/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2512:35 pmSJO - STL
1 stop20h 27mSpirit Airlines
Sat 11/17:15 pmSTL - SJO
1 stop18h 15mSpirit Airlines
Deal found 9/14$270
This Delta deal was found by Cheapflights users on 9/15. 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.
Thu 10/231:25 pmLIR - ORD
2 stops17h 25mDelta
Tue 10/285:20 amORD - LIR
1 stop7h 20mDelta
Deal found 9/15$294

Cheapflights Fare Finder

 
Customize your flight search to find flights from Costa Rica to Illinois 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 September 16, 2025.
Use the filters below to find and compare flights from Costa Rica to Illinois that are best for you.

Fly from

Costa Rica

Fly to

Illinois

Route

Depart

Return

Price

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sat 10/25

12:35 pm-10:02 am

1 stop20h 27m

Lambert-St Louis

Sat 11/1

7:15 pm-12:30 pm

1 stop18h 15m

$270

LiberiaChicago

LIR - ORD

LIRORD

Liberia

Thu 10/23

1:25 pm-12:45 pm

2 stops22h 20m

Chicago O'Hare Intl

Wed 10/29

5:20 am-11:40 am

1 stop7h 20m

$294

LiberiaChicago

LIR - ORD

LIRORD

Liberia

Fri 10/24

1:25 pm-9:12 am

2 stops18h 47m

Chicago O'Hare Intl

Wed 10/29

5:20 am-11:40 am

1 stop7h 20m

$294

LiberiaChicago

LIR - ORD

LIRORD

Liberia

Thu 10/23

1:25 pm-12:45 pm

2 stops22h 20m

Chicago O'Hare Intl

Tue 10/28

4:56 pm-11:40 am

2 stops19h 44m

$294

LiberiaChicago

LIR - ORD

LIRORD

Liberia

Fri 10/24

1:25 pm-9:12 am

2 stops18h 47m

Chicago O'Hare Intl

Tue 10/28

4:56 pm-11:40 am

2 stops19h 44m

$294

LiberiaChicago

LIR - ORD

LIRORD

Liberia

Mon 10/27

7:35 am-11:10 pm

1 stop14h 35m

Chicago O'Hare Intl

Wed 10/29

7:10 am-3:08 pm

1 stop8h 58m

$315

LiberiaChicago

LIR - ORD

LIRORD

Liberia

Tue 10/28

11:50 am-11:59 pm

1 stop11h 09m

Chicago O'Hare Intl

Fri 10/31

6:00 am-12:10 pm

1 stop7h 10m

$315

LiberiaChicago

LIR - ORD

LIRORD

Liberia

Sat 10/25

1:25 pm-11:58 pm

1 stop9h 33m

Chicago O'Hare Intl

Wed 10/29

5:20 am-11:40 am

1 stop7h 20m

$315

San JoséChicago

SJO - ORD

SJOORD

San José Juan Santamaria Intl

Wed 10/1

10:58 am-12:21 am

1 stop12h 23m

Chicago O'Hare Intl

Fri 10/17

3:07 pm-8:19 am

1 stop18h 12m

$323

San JoséChicago

SJO - ORD

SJOORD

San José Juan Santamaria Intl

Mon 12/1

6:07 pm-12:52 pm

1 stop18h 45m

Chicago O'Hare Intl

Mon 12/8

2:07 pm-7:10 am

1 stop17h 03m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 60 results
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Best time to book a flight from Costa Rica to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois 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.

Cheapflights Insights

Everything you need to know about your flight from Costa Rica to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Costa Rica to Illinois (average of $245). Flying from Costa Rica to Illinois in March is currently the most expensive (average of $321). 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 IL?

Find hourly flight availability from Costa Rica to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

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

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated September 16, 2025.
Read reviews from past customers who have flown Copa Airlines, United Airlines, and American Airlines from Costa Rica to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,531 reviews

Comfort

7.4

Food

6.8

Crew

8.1

Boarding

7.8

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Copa Airlines
7.6
Good
1,531 reviews
Copa Airlines
7.6
Good
1,531 reviews

Comfort

7.4

Food

6.8

Crew

8.1

Boarding

7.8

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
United Airlines
7.4
Good
8,924 reviews
Copa Airlines
7.6
Good
1,531 reviews

Comfort

7.4

Food

6.8

Crew

8.1

Boarding

7.8

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
American Airlines
7.2
Good
10,000 reviews
Copa Airlines
7.6
Good
1,531 reviews

Comfort

7.4

Food

6.8

Crew

8.1

Boarding

7.8

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Avianca
6.7
Okay
2,435 reviews
Copa Airlines
7.6
Good
1,531 reviews

Comfort

7.4

Food

6.8

Crew

8.1

Boarding

7.8

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Spirit Airlines
6.3
Okay
8,019 reviews
Copa Airlines
7.6
Good
1,531 reviews

Comfort

7.4

Food

6.8

Crew

8.1

Boarding

7.8

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip

Related info for your journey

Find useful and relevant information for your journey from Costa Rica to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Costa Rica to Illinois?

    For as low as $323, Spirit Airlines can have you in Illinois from Costa Rica in 12h 23m. Costa Rica and Illinois are separated by a distance of 2220 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airlines for a one-way flight from Costa Rica to Illinois are Spirit Airlines ($140), American Airlines ($183), and Air Canada ($213).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Costa Rica to Illinois 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 Illinois?

    Currently, August is the cheapest month in which you can book a flight from Costa Rica to Illinois (average of $245). Flying from Costa Rica to Illinois in March is currently the most expensive (average of $321). 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

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Alternative routes for Costa Rica to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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San José to Newark flights
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Guatemala City to John F Kennedy Intl flights
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Panama City to LaGuardia flights
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San Salvador to Newark flights
San José to Dulles Intl flights
Guatemala City to Atlanta flights
Guatemala City to Ontario flights
San Salvador to Atlanta flights
San José to San Francisco flights
San José to Dallas/Fort Worth flights
Guatemala City to Las Vegas flights
San Salvador to LaGuardia flights
Panama City to Los Angeles flights

Top 6 airlines flying from Costa Rica to Illinois

Discover the top 6 airlines that operate flights from Costa Rica to Illinois. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$249Average$485FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$264Average$417FlexibilityNo cancel feeOn-time65%
Copa AirlinesCheapest$314Average$478FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$377Average$560FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$425Average$527FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$436Average$633FlexibilityNo cancel feeOn-time69%

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