Illinois

$140+ Cheap flights from San José (SJO) 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 5/22. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — ORD
Apr 22 — Apr 291
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Cheap flight deals from San José to Illinois

Keep the following information in mind while searching for San José to Illinois flight deals. Data was last updated April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$294
(Cheapflightsfares)

One-way from

$140
(FlightHub)

Popular in

December

Cheapest in

August

Average price

$541

Good round-trip deal

$540 or less

Good one-way deal

$255 or less
Provider with most accurate pricing for San José Juan Santamaria Intl-Chicago (CHI) flight deals.
Provider most trusted by Cheapflights users for San José Juan Santamaria Intl-Chicago (CHI) flights.
From San José Juan Santamaria Intl to Illinois
One-way flight from San José Juan Santamaria Intl to Illinois
Highest demand for flights based on searches. 3% potential increase in price ($17 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from San José Juan Santamaria Intl to Illinois.
Price to beat on a one-way flight from San José Juan Santamaria Intl to Illinois.

Find flight deals from San José to Illinois

Cheapest flights from San José to Illinois
Explore the most affordable flight options available from San José to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2311:32 amSJO - ORD
1 stop10h 57mSpirit Airlines
Mon 5/267:35 pmORD - SJO
1 stop16h 58mSpirit Airlines
Deal found 4/16$294
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/712:28 pmSJO - STL
1 stop19h 47mSpirit Airlines
Sun 5/1110:10 amSTL - SJO
1 stop26h 23mSpirit Airlines
Deal found 4/16$296
This OneTravel deal was found by Cheapflights users on 4/16. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/234:48 pmSJO - ORD
1 stop11h 54mMultiple Airlines
Sat 8/301:40 amORD - SJO
1 stop13h 17mMultiple Airlines
Deal found 4/16$313
This American Airlines deal was found by Cheapflights users on 4/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2111:59 pmSJO - STL
1 stop17h 22mAmerican Airlines
Wed 5/287:00 amSTL - SJO
1 stop16h 17mAmerican Airlines
Deal found 4/16$336
This United Airlines deal was found by Cheapflights users on 4/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/117:55 amSJO - STL
1 stop7h 58mUnited Airlines
Tue 6/248:25 amSTL - SJO
1 stop12h 12mUnited Airlines
Deal found 4/16$337
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/111:35 amSJO - STL
1 stop11h 31mMultiple Airlines
Sun 5/1110:10 amSTL - SJO
1 stop26h 23mMultiple Airlines
Deal found 4/16$346
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/235:52 amSJO - MDW
2 stops13h 25mMultiple Airlines
Sun 5/259:12 pmMDW - SJO
1 stop14h 15mMultiple Airlines
Deal found 4/16$394
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Sat 5/241:00 pmSJO - ORD
Nonstop5h 34mUnited Airlines
Sun 6/17:41 amORD - SJO
Nonstop5h 14mUnited Airlines
Deal found 4/17$431
This Copa Airlines deal was found by Cheapflights users on 4/17. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/16:07 pmSJO - ORD
1 stop18h 40mCopa Airlines
Mon 5/53:07 pmORD - SJO
1 stop17h 28mCopa Airlines
Deal found 4/17$432
This Southwest deal was found by Cheapflights users on 4/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/141:40 pmSJO - MDW
1 stop9h 25mSouthwest
Tue 8/199:10 amMDW - SJO
1 stop10h 45mSouthwest
Deal found 4/16$436
This Avianca deal was found by Cheapflights users on 4/17. 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.
Sat 8/161:40 amSJO - ORD
1 stop34h 35mAvianca
Sun 8/243:45 pmORD - SJO
2 stops8h 50mAvianca
Deal found 4/17$443
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Sat 9/137:35 amSJO - ORD
1 stop11h 01mAmerican Airlines
Tue 9/236:00 amORD - SJO
1 stop7h 55mAmerican Airlines
Deal found 4/17$449

Cheapflights Fare Finder

Customize your flight search to find flights from San José 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 April 17, 2025.
Use the filters below to find and compare flights from San José to Illinois that are best for you.

Fly from

San José

Fly to

Illinois

Route

Depart

Return

Price

San JoséChicago

SJO - ORD

SJOORD

San José Juan Santamaria Intl

Fri 5/23

11:32 am-11:29 pm

1 stop10h 57m

Chicago O'Hare Intl

Mon 5/26

7:35 pm-11:33 am

1 stop16h 58m

$294

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 5/7

12:28 pm-9:15 am

1 stop19h 47m

Lambert-St Louis

Sun 5/11

10:10 am-11:33 am

1 stop26h 23m

$296

San JoséChicago

SJO - ORD

SJOORD

San José Juan Santamaria Intl

Sat 8/23

4:48 pm-5:42 am

1 stop11h 54m

Chicago O'Hare Intl

Sat 8/30

1:40 am-1:57 pm

1 stop13h 17m

$313

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 5/21

11:59 pm-6:21 pm

1 stop17h 22m

Lambert-St Louis

Wed 5/28

7:00 am-10:17 pm

1 stop16h 17m

$336

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 6/11

7:55 am-4:53 pm

1 stop7h 58m

Lambert-St Louis

Tue 6/24

8:25 am-7:37 pm

1 stop12h 12m

$337

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 5/1

11:35 am-12:06 am

1 stop11h 31m

Lambert-St Louis

Sun 5/11

10:10 am-11:33 am

1 stop26h 23m

$346

San JoséChicago

SJO - MDW

SJOMDW

San José Juan Santamaria Intl

Fri 5/23

5:52 am-8:17 pm

2 stops13h 25m

Chicago Midway

Sun 5/25

9:12 pm-10:27 am

1 stop14h 15m

$394

San JoséChicago

SJO - ORD

SJOORD

San José Juan Santamaria Intl

Sat 5/24

1:00 pm-7:34 pm

Nonstop5h 34m

Chicago O'Hare Intl

Sun 6/1

7:41 am-11:55 am

Nonstop5h 14m

$431

San JoséChicago

SJO - ORD

SJOORD

San José Juan Santamaria Intl

Thu 5/1

6:07 pm-1:47 pm

1 stop18h 40m

Chicago O'Hare Intl

Mon 5/5

3:07 pm-7:35 am

1 stop17h 28m

$432

San JoséChicago

SJO - ORD

SJOORD

San José Juan Santamaria Intl

Sat 8/16

1:40 am-1:15 pm

1 stop34h 35m

Chicago O'Hare Intl

Sun 8/24

3:45 pm-11:35 pm

2 stops8h 50m

$443

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 34 results
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Best time to book a flight from San José to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from San José 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 San José to Illinois

What is the cheapest month to book a flight from San José, San José Province to Illinois?

Currently, August is the cheapest month in which you can book a flight from San José, San José Province to Illinois (average of $245). Flying from San José, San José Province 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 SJO to IL?

Find hourly flight availability from San José 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 April 17, 2025.

When flying from San José, San José Province 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 April 17, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from San José to Illinois have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
8.0
Very good

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from San José to Illinois. 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 San José to Illinois?

    For a flight from San José to Illinois, you will be flying from Juan Santamaria Intl. San José Juan Santamaria Intl (SJO) is just 8.8 mi from the center of the city.

  • What are the cheapest airlines to fly from San José, San José Province to Illinois one-way?

    $140 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on United Airlines and Copa Airlines, with prices starting from $192 and $237, respectively.

  • What are the most popular routes from San José, San José Province to Illinois?

  • What are the cheapest flights from San José, San José Province to Illinois?

    The cheapest flight price from San José, San José Province to Illinois is $235. On average you can expect to pay $409. The most popular route, (San José Juan Santamaria Intl - Chicago O'Hare Intl), can usually be booked for $263.

  • Can I find deals for flights from San José to Illinois that include hotel bookings?

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

  • How can I find direct flights from San José to Illinois?

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

  • Can I find deals for business class flights from San José to Illinois?

    Yes. Cheapflights offers flight deals from San José 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 San José, San José Province to Illinois?

    Currently, August is the cheapest month in which you can book a flight from San José, San José Province to Illinois (average of $245). Flying from San José, San José Province 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

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Alternative routes for San José to Illinois

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from San José to Illinois

Discover the top 6 airlines that operate flights from San José 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$198Average$389FlexibilityNo cancel feeOn-time65%
AviancaCheapest$321Average$491FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$326Average$512FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$340Average$482FlexibilityNo cancel feeOn-time71%
DeltaCheapest$434Average$649FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$473Average$664FlexibilityNo cancel feeOn-time69%

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