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$185+ 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 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — ORD
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Costa Rica to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Costa Rica (CR0) to Illinois (USIL). 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 November 21, 2024.

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 November 21, 2024.

This Kiwi.com deal was found by Cheapflights users on 11/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/181:49 amSJO - ORD
1 stop9h 15mSpirit Airlines
Tue 12/315:00 amORD - SJO
1 stop19h 54mSpirit Airlines
Deal found 11/20$320
This Booking.com deal was found by Cheapflights users on 11/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/243:32 pmSJO - ORD
1 stop9h 30mMultiple Airlines
Tue 12/315:11 pmORD - SJO
1 stop7h 43mMultiple Airlines
Deal found 11/20$347
This eDestinos deal was found by Cheapflights users on 11/20. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/73:32 pmSJO - ORD
1 stop9h 30mVolaris
Wed 2/2612:48 amORD - SJO
1 stop13h 09mVolaris
Deal found 11/20$348
This Avianca deal was found by Cheapflights users on 11/20. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/262:15 amSJO - ORD
1 stop10h 00mAvianca
Wed 12/42:35 pmORD - SJO
1 stop18h 45mAvianca
Deal found 11/20$453
This United Airlines deal was found by Cheapflights users on 11/21. 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.
Wed 12/256:30 amSJO - STL
1 stop17h 29mUnited Airlines
Wed 1/85:30 pmSTL - SJO
2 stops24h 46mUnited Airlines
Deal found 11/21$459
This Kiwi.com deal was found by Cheapflights users on 11/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/295:20 pmSJO - MDW
2 stops15h 01mMultiple Airlines
Mon 1/66:49 pmMDW - SJO
1 stop16h 52mMultiple Airlines
Deal found 11/20$463
This FlightHub deal was found by Cheapflights users on 11/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/211:29 pmSJO - STL
1 stop25h 52mSpirit Airlines
Sat 1/45:52 pmSTL - SJO
1 stop18h 32mSpirit Airlines
Deal found 11/21$551
This KAYAK deal was found by Cheapflights users on 11/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2911:38 amSJO - MDW
1 stop25h 46mFrontier
Wed 1/18:25 amMDW - SJO
1 stop25h 50mFrontier
Deal found 11/21$554
This Kiwi.com deal was found by Cheapflights users on 11/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2312:26 pmSJO - STL
1 stop18h 14mMultiple Airlines
Tue 11/266:41 pmSTL - SJO
1 stop16h 50mMultiple Airlines
Deal found 11/21$609
This Southwest deal was found by Cheapflights users on 11/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/69:55 amSJO - MDW
1 stop8h 55mSouthwest
Mon 12/99:00 amMDW - SJO
2 stops11h 40mSouthwest
Deal found 11/21$621
This Delta deal was found by Cheapflights users on 11/20. 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.
Sun 11/247:00 amSJO - MDW
1 stop10h 54mDelta
Fri 11/299:31 amMDW - SJO
2 stops12h 22mDelta
Deal found 11/20$639
This American Airlines deal was found by Cheapflights users on 11/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/223:24 pmSJO - STL
1 stop8h 33mAmerican Airlines
Tue 12/34:03 pmSTL - SJO
1 stop6h 56mAmerican Airlines
Deal found 11/21$659

Find flights from Costa Rica to Illinois within your budget

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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San JoséChicago

SJO - ORD

SJOORD

San José Juan Santamaria Intl

Mon 1/20

1:57 am-8:13 pm

1 stop18h 16m

Chicago O'Hare Intl

Mon 1/27

6:06 pm-11:18 am

1 stop17h 12m

$314

San JoséChicago

SJO - ORD

SJOORD

San José Juan Santamaria Intl

Sat 5/17

3:32 pm-11:05 am

1 stop18h 33m

Chicago O'Hare Intl

Fri 5/23

2:45 am-11:15 pm

1 stop21h 30m

$318

San JoséChicago

SJO - ORD

SJOORD

San José Juan Santamaria Intl

Sat 12/7

3:32 pm-1:02 am

1 stop9h 30m

Chicago O'Hare Intl

Wed 2/26

12:48 am-1:57 pm

1 stop13h 09m

$335

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 2/26

7:30 am-3:58 pm

1 stop8h 28m

Lambert-St Louis

Wed 3/12

1:39 pm-9:55 pm

1 stop9h 16m

$384

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 2/26

11:28 pm-2:36 pm

2 stops15h 08m

Lambert-St Louis

Wed 3/12

3:30 pm-8:55 pm

2 stops30h 25m

$387

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Mon 1/20

12:25 pm-9:16 am

2 stops44h 51m

Lambert-St Louis

Mon 1/27

5:05 pm-11:18 am

1 stop18h 13m

$448

San JoséChicago

SJO - MDW

SJOMDW

San José Juan Santamaria Intl

Mon 2/3

1:57 am-7:06 pm

2 stops41h 09m

Chicago Midway

Mon 2/10

4:27 pm-12:59 am

3 stops32h 32m

$458

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sat 12/21

1:29 pm-3:21 pm

1 stop25h 52m

Lambert-St Louis

Sat 1/4

5:52 pm-12:24 pm

1 stop18h 32m

$551

San JoséChicago

SJO - MDW

SJOMDW

San José Juan Santamaria Intl

Sun 12/29

11:38 am-1:24 pm

1 stop25h 46m

Chicago Midway

Wed 1/1

8:25 am-10:15 am

1 stop25h 50m

$554

San JoséChicago

SJO - MDW

SJOMDW

San José Juan Santamaria Intl

Wed 4/16

8:45 am-9:05 pm

2 stops11h 20m

Chicago Midway

Fri 4/25

9:45 am-7:40 pm

2 stops10h 55m

$568

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 46 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.

Travel insights for flights from Costa Rica to Illinois

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

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

Currently, September is the cheapest month in which you can book a flight from Costa Rica to Illinois (average of $232). Flying from Costa Rica to Illinois in June is currently the most expensive (average of $308). 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 November 21, 2024.

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.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 November 21, 2024.
Read reviews from past customers who have flown Spirit Airlines, Alaska Airlines and Air Canada from Costa Rica to Illinois. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

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

Southwest
8.1
Very good
5,005 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

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

Delta
8.0
Very good
8,755 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,464 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

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

Aeromexico
7.5
Good
2,004 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

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

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

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 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.

  • 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 ($185), Avianca ($203), and Volaris ($232).

  • 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, September is the cheapest month in which you can book a flight from Costa Rica to Illinois (average of $232). Flying from Costa Rica to Illinois in June is currently the most expensive (average of $308). 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 Costa Rica to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$205Average$370FlexibilityNo cancel feeOn-time65%
AviancaCheapest$262Average$413FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$340Average$577FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$393Average$562FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$438Average$676FlexibilityNo cancel feeOn-time69%
DeltaCheapest$521Average$680FlexibilityNo cancel feeOn-timeN/A
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