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$132+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — ORD
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$310
(Mytrip)

One-way from

$132
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$455

Good round-trip deal

$331 or less

Good one-way deal

$346 or less
Provider with most accurate pricing for San José Juan Santamaria Intl-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for San José Juan Santamaria Intl-Chicago (CHI) flights.
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From San José Juan Santamaria Intl to Illinois
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One-way flight from San José Juan Santamaria Intl to Illinois
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Highest demand for flights based on searches. 7% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from San José Juan Santamaria Intl to Illinois.
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Price to beat on a one-way flight from San José Juan Santamaria Intl to Illinois.
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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 February 20, 2025.

This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
Fri 4/2511:35 amSJO - STL
1 stop11h 29mMultiple Airlines
Mon 5/55:47 pmSTL - SJO
1 stop17h 37mMultiple Airlines
Deal found 2/20$303
This Mytrip deal was found by Cheapflights users on 2/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/412:29 pmSJO - ORD
2 stops29h 57mSpirit Airlines
Tue 3/115:55 amORD - SJO
3 stops18h 55mSpirit Airlines
Deal found 2/19$310
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 5/171:24 pmSJO - ORD
1 stop8h 04mMultiple Airlines
Wed 5/215:05 amORD - SJO
1 stop7h 13mMultiple Airlines
Deal found 2/19$323
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
Tue 4/811:55 amSJO - MDW
1 stop10h 29mMultiple Airlines
Tue 4/156:00 amMDW - SJO
1 stop17h 40mMultiple Airlines
Deal found 2/19$328
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/125:30 amSJO - STL
1 stop28h 09mUnited Airlines
Sat 7/193:35 pmSTL - SJO
2 stops19h 36mUnited Airlines
Deal found 2/20$419
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2411:59 pmSJO - STL
1 stop8h 02mAmerican Airlines
Mon 4/285:00 amSTL - SJO
1 stop9h 05mAmerican Airlines
Deal found 2/20$428
This JetBlue deal was found by Cheapflights users on 2/19. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2511:44 pmSJO - ORD
1 stop11h 03mJetBlue
Tue 3/411:44 amORD - SJO
1 stop10h 04mJetBlue
Deal found 2/19$431
This Copa Airlines deal was found by Cheapflights users on 2/20. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/18:07 amSJO - ORD
1 stop15h 14mCopa Airlines
Thu 11/66:56 amORD - SJO
1 stop12h 11mCopa Airlines
Deal found 2/20$437
This eDestinos deal was found by Cheapflights users on 2/19. 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 6/71:42 pmSJO - MDW
1 stop27h 07mFrontier
Fri 6/136:44 pmMDW - SJO
1 stop18h 38mFrontier
Deal found 2/19$441
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2611:35 amSJO - STL
2 stops28h 41mSpirit Airlines
Sun 5/46:11 pmSTL - SJO
1 stop6h 43mSpirit Airlines
Deal found 2/20$450
This Cheapflightsfares deal was found by Cheapflights users on 2/19. 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.
Sat 6/78:00 pmSJO - ORD
2 stops17h 25mAvianca
Fri 6/132:35 pmORD - SJO
1 stop19h 45mAvianca
Deal found 2/19$465
This Southwest deal was found by Cheapflights users on 2/19. 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 5/161:10 pmSJO - MDW
1 stop9h 25mSouthwest
Tue 5/208:45 amMDW - SJO
1 stop11h 55mSouthwest
Deal found 2/19$523

Find flights from San José to Illinois within your budget

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 February 20, 2025.

Fly from

San José

Fly to

Illinois

Route

Depart

Return

Price

San JoséChicago

SJO - ORD

SJOORD

San José Juan Santamaria Intl

Tue 3/4

12:29 pm-6:26 pm

2 stops29h 57m

Chicago O'Hare Intl

Tue 3/11

5:55 am-11:50 pm

3 stops18h 55m

$310

San JoséChicago

SJO - ORD

SJOORD

San José Juan Santamaria Intl

Sat 5/17

1:24 pm-10:28 pm

1 stop8h 04m

Chicago O'Hare Intl

Wed 5/21

5:05 am-11:18 am

1 stop7h 13m

$323

San JoséChicago

SJO - MDW

SJOMDW

San José Juan Santamaria Intl

Tue 4/8

11:55 am-11:24 pm

1 stop10h 29m

Chicago Midway

Tue 4/15

6:00 am-10:40 pm

1 stop17h 40m

$328

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Mon 4/7

11:15 am-5:52 pm

3 stops29h 37m

Lambert-St Louis

Thu 4/10

6:11 pm-11:54 pm

1 stop6h 43m

$383

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Mon 4/7

12:26 pm-5:52 pm

1 stop28h 26m

Lambert-St Louis

Thu 4/10

6:11 pm-11:54 pm

1 stop6h 43m

$404

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sat 7/12

5:30 am-10:39 am

1 stop28h 09m

Lambert-St Louis

Sat 7/19

3:35 pm-10:11 am

2 stops19h 36m

$419

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 4/24

11:59 pm-9:01 am

1 stop8h 02m

Lambert-St Louis

Mon 4/28

5:26 am-1:19 pm

1 stop8h 53m

$428

San JoséChicago

SJO - ORD

SJOORD

San José Juan Santamaria Intl

Mon 3/3

4:09 am-12:42 pm

1 stop8h 33m

Chicago O'Hare Intl

Sun 3/9

7:55 am-7:07 pm

1 stop12h 12m

$437

San JoséChicago

SJO - MDW

SJOMDW

San José Juan Santamaria Intl

Sat 6/7

1:42 pm-5:49 pm

1 stop27h 07m

Chicago Midway

Fri 6/13

6:44 pm-12:22 pm

1 stop18h 38m

$441

San JoséChicago

SJO - ORD

SJOORD

San José Juan Santamaria Intl

Sat 6/7

8:00 pm-2:25 pm

2 stops17h 25m

Chicago O'Hare Intl

Fri 6/13

2:35 pm-9:20 am

1 stop19h 45m

$465

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 35 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.

Travel insights for flights from San José to Illinois

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

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 February 20, 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 February 20, 2025.
See what other customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Copa Airlines
7.6
Good
1,510 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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?

    $138 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 Frontier and United Airlines, with prices starting from $154 and $236, respectively.

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

    The most popular route from San José, San José Province to Illinois is San José Juan Santamaria Intl - Chicago O'Hare Intl. You may also consider San José Juan Santamaria Intl - Chicago Midway or San José Juan Santamaria Intl - Lambert-St Louis.

  • 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 $242. On average you can expect to pay $1,051. The most popular route, (San José Juan Santamaria Intl - Chicago O'Hare Intl), can usually be booked for $247.

  • 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.

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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.
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San José to Newark flights
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Liberia to Los Angeles flights
Liberia to Newark flights
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San José to New Orleans flights
San José to Philadelphia flights
San José to Sky Harbor Intl flights
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San José to Austin flights
San José to Portland flights
San José to Raleigh flights
San José to Nashville flights
San José to Oakland flights
San José to San Jose flights
San José to Minneapolis flights
San José to Columbus flights
San José to El Paso flights
San José to Indianapolis flights
Liberia to Miami flights
San José to Honolulu flights
San José to San Antonio flights
San José to Kansas City flights
San José to Daytona Beach flights
San José to Milwaukee flights
Liberia to Denver flights

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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$205Average$385FlexibilityNo cancel feeOn-time65%
Copa AirlinesCheapest$320Average$587FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$340Average$507FlexibilityNo cancel feeOn-time71%
AviancaCheapest$371Average$474FlexibilityNo cancel feeOn-time71%
DeltaCheapest$521Average$649FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$557Average$664FlexibilityNo cancel feeOn-time69%
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