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$119+ Cheap flights from Illinois to Costa Rica

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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SJO
Nov 5 — Nov 121
Tue 11/5
Tue 11/12
1 adult, Economy
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Find flight deals from Illinois to Costa Rica

Cheapest flights from Illinois to Costa Rica
Explore the most affordable flight options available from Illinois to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.

This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/45:02 pmSTL - SJO
1 stop18h 26mMultiple Airlines
Thu 12/1212:23 pmSJO - STL
1 stop11h 01mMultiple Airlines
Deal found 10/30$316
This FlightHub deal was found by Cheapflights users on 10/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/285:21 pmSTL - SJO
1 stop7h 40mSpirit Airlines
Wed 12/41:49 amSJO - STL
1 stop13h 32mSpirit Airlines
Deal found 10/30$355
This CheapOair deal was found by Cheapflights users on 10/30. 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.
Fri 12/65:10 amORD - SJO
2 stops30h 18mSpirit Airlines
Mon 12/912:23 pmSJO - ORD
2 stops23h 55mSpirit Airlines
Deal found 10/30$355
This CheapOair deal was found by Cheapflights users on 10/30. 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.
Wed 11/139:11 pmORD - SJO
2 stops38h 20mMultiple Airlines
Sun 11/172:52 pmSJO - ORD
1 stop13h 45mMultiple Airlines
Deal found 10/30$365
This Avianca deal was found by Cheapflights users on 10/30. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/101:35 pmORD - SJO
1 stop19h 45mAvianca
Thu 11/144:55 pmSJO - ORD
1 stop19h 20mAvianca
Deal found 10/30$370
This Delta deal was found by Cheapflights users on 10/30. 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.
Sat 12/710:28 amSTL - SJO
1 stop11h 29mDelta
Wed 12/112:13 pmSJO - STL
1 stop9h 30mDelta
Deal found 10/30$386
This American Airlines deal was found by Cheapflights users on 10/31. 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.
Thu 12/126:02 pmSTL - LIR
2 stops20h 08mAmerican Airlines
Tue 12/171:50 pmLIR - STL
2 stops10h 09mAmerican Airlines
Deal found 10/31$442
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Thu 11/289:15 amSTL - SJO
2 stops27h 00mAmerican Airlines
Thu 12/53:25 pmSJO - STL
1 stop17h 29mAmerican Airlines
Deal found 10/30$449
This Air Canada deal was found by Cheapflights users on 10/31. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/23:50 pmSTL - LIR
1 stop23h 40mAir Canada
Sat 11/93:30 pmLIR - STL
1 stop23h 36mAir Canada
Deal found 10/31$500
This Southwest deal was found by Cheapflights users on 10/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1011:15 amMDW - SJO
2 stops9h 25mSouthwest
Tue 12/179:55 amSJO - MDW
2 stops9h 00mSouthwest
Deal found 10/30$533
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 12/610:10 amSTL - SJO
2 stops37h 48mUnited Airlines
Sat 12/148:45 amSJO - STL
1 stop12h 06mUnited Airlines
Deal found 10/30$538
This Southwest deal was found by Cheapflights users on 10/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/118:45 pmMDW - LIR
2 stops17h 20mSouthwest
Wed 12/183:05 pmLIR - MDW
2 stops17h 55mSouthwest
Deal found 10/29$539

Find flights from Illinois to Costa Rica within your budget

Customize your flight search to find flights from Illinois 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 2,570,725 searches. Data last updated October 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoSan José

ORD - SJO

ORDSJO

Chicago O'Hare Intl

Tue 12/3

7:39 pm-12:53 am

1 stop29h 14m

$119

ChicagoSan José

MDW - SJO

MDWSJO

Chicago Midway

Wed 3/5

9:44 pm-9:25 am

1 stop11h 41m

$125

ChicagoSan José

ORD - SJO

ORDSJO

Chicago O'Hare Intl

Sun 12/8

6:20 am-12:19 pm

2 stops29h 59m

$130

ChicagoSan José

ORD - SJO

ORDSJO

Chicago O'Hare Intl

Thu 1/23

2:05 pm-9:20 am

1 stop19h 15m

$156

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Thu 1/30

5:23 am-12:30 pm

1 stop7h 07m

$203

ChicagoSan José

MDW - SJO

MDWSJO

Chicago Midway

Tue 12/10

11:15 am-8:40 pm

2 stops9h 25m

$229

ChicagoLiberia

ORD - LIR

ORDLIR

Chicago O'Hare Intl

Tue 1/14

3:03 pm-7:09 am

2 stops16h 06m

$241

ChicagoLiberia

ORD - LIR

ORDLIR

Chicago O'Hare Intl

Tue 4/29

8:25 pm-1:30 pm

1 stop18h 05m

$257

ChicagoSan José

MDW - SJO

MDWSJO

Chicago Midway

Tue 11/19

11:33 am-1:01 am

2 stops13h 28m

$137

ChicagoSan José

ORD - SJO

ORDSJO

Chicago O'Hare Intl

Sat 12/7

10:14 am-9:48 pm

1 stop11h 34m

$278

Flights are sorted by cheapest first

Deals found on 10/30

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

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Illinois 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 Illinois to Costa Rica

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

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

Currently, September is the cheapest month in which you can book a flight from Illinois to Costa Rica (average of $398). Flying from Illinois to Costa Rica in July is currently the most expensive (average of $533). 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 IL to CR?

Find hourly flight availability from Illinois to Costa Rica. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 31, 2024.

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

Rainfall in Costa Rica by month

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

In terms of precipitation, rainfall in Costa Rica ranges from 0.0 - 11.8 inches per month. September is typically the wettest month, when rainfall can reach 11.8 in. February is typically the driest time to visit Costa Rica when rainfall is around 0.0 in.

Temperature in Costa Rica by month

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

If weather is an important factor for your trip to Costa Rica, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

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 October 31, 2024.
Get a feel of what it's like to fly with Spirit Airlines, Delta and American Airlines from Illinois to Costa Rica by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,116 reviews

Overall

8.1

Boarding

8.3

Entertainment

7.7

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,116 reviews
Southwest
8.1
Very good
5,116 reviews

Overall

8.1

Boarding

8.3

Entertainment

7.7

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,835 reviews
Southwest
8.1
Very good
5,116 reviews

Overall

8.1

Boarding

8.3

Entertainment

7.7

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,420 reviews
Southwest
8.1
Very good
5,116 reviews

Overall

8.1

Boarding

8.3

Entertainment

7.7

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Copa Airlines
7.8
Good
1,885 reviews
Southwest
8.1
Very good
5,116 reviews

Overall

8.1

Boarding

8.3

Entertainment

7.7

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Aeromexico
7.5
Good
2,032 reviews
Southwest
8.1
Very good
5,116 reviews

Overall

8.1

Boarding

8.3

Entertainment

7.7

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

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

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

    Yes, there are multiple flights from Illinois to Costa Rica for under $400. The cheapest flight booked recently is on Multiple Airlines for just $316, but on average you can expect to pay $461.

  • Are there nonstop flights from Illinois to Costa Rica for under $700 on Cheapflights?

    Cheapflights has at least 4 direct flights from Illinois to Costa Rica under $700. A good price for a nonstop flight from Illinois to Costa Rica is less than $700.

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

    There are currently 17+ open flights from Illinois to Costa Rica within the next 7 days for less than $400.

  • What days are nonstop flights available from Illinois to Costa Rica?

    Days when nonstop flights are available for this flight are: Friday.

  • How many flights depart from Illinois to Costa Rica on average per day?

    On average 1 flight departs from Illinois to Costa Rica per day.
    Morning (6am - Noon) - 100% of flight departures

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

    Airlines like Spirit Airlines, Delta, and Avianca fly from Illinois to Costa Rica in about 6h 26m. The time it takes to get you to your destination can typically vary by up to 13h 19m. Airlines will cover a distance of 2233 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $119. Users have also found prices from $125 and $156 on Frontier and Avianca, respectively.

  • What does ORD to SJO mean?

    ORD stands for Chicago O'Hare Intl Airport, while SJO stands for San José Juan Santamaria Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Liberia Airport (LIR), Limon Airport (LIO), San José Tobias Bolanos Intl Airport (SYQ), Tamarindo Airport (TNO), Tortuquero Airport (TTQ).

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

    The amount of baggage you can bring on your Illinois 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 Illinois to Costa Rica with specific airlines?

    Yes, Cheapflights allows you to browse and filter Illinois 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 Illinois to Costa Rica that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois 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 Illinois to Costa Rica that allow pets onboard?

    Many airlines flying from Illinois 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 Illinois to Costa Rica?

    Yes, you can often find last-minute deals on Illinois 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 Illinois to Costa Rica flight deals updated?

    The Illinois to Costa Rica flight deals you see on this page were last updated on 10/31.

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

    Currently, September is the cheapest month in which you can book a flight from Illinois to Costa Rica (average of $398). Flying from Illinois to Costa Rica in July is currently the most expensive (average of $533). 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

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Alternative routes for Illinois to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Illinois to Costa Rica

Discover the top 9 airlines that operate flights from Illinois 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 2,570,725 searches. Data last updated October 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$205Average$210FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$238Average$387FlexibilityNo cancel feeOn-time65%
AviancaCheapest$239Average$390FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$338Average$702FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$345Average$711FlexibilityNo cancel feeOn-time62%
DeltaCheapest$408Average$842FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$414Average$618FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$582Average$852FlexibilityNo cancel feeOn-time69%
AeromexicoCheapest$676Average$679FlexibilityNo cancel feeOn-timeN/A
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