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$239+ Cheap flights from Illinois to Basel (EAP)

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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — EAP
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Find flight deals from Illinois to Basel

Cheapest flights from Illinois to Basel
Explore the most affordable flight options available from Illinois to Basel. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 30, 2025.

This flugladen.de 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/311:50 amORD - BSL
1 stop22h 20mTurkish Airlines
jue. 12/116:05 pmBSL - ORD
1 stop23h 00mTurkish Airlines
Deal found 10/30$606
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/611:50 amORD - BSL
1 stop15h 10mTurkish Airlines
mié. 11/196:05 pmBSL - ORD
1 stop31h 20mTurkish Airlines
Deal found 10/29$617
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.
mar. 12/25:10 pmORD - BSL
1 stop22h 10mAmerican Airlines
dom. 12/76:35 amBSL - ORD
1 stop15h 50mAmerican Airlines
Deal found 10/30$624
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/1311:50 amORD - BSL
1 stop22h 20mTurkish Airlines
sáb. 11/2210:55 amBSL - ORD
1 stop38h 30mTurkish Airlines
Deal found 10/29$639
This lastminute.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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/611:50 amORD - BSL
1 stop15h 10mTurkish Airlines
jue. 11/206:05 pmBSL - ORD
1 stop23h 00mTurkish Airlines
Deal found 10/30$640
This lastminute.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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/911:50 amORD - BSL
1 stop15h 10mTurkish Airlines
mar. 11/2510:55 amBSL - ORD
1 stop30h 10mTurkish Airlines
Deal found 10/30$641
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.
mié. 12/242:45 pmSTL - BSL
2 stops18h 20mUnited Airlines
mar. 12/309:50 amBSL - STL
2 stops35h 05mUnited Airlines
Deal found 10/30$656
This lastminute.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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/911:50 amORD - BSL
1 stop22h 20mTurkish Airlines
dom. 11/236:05 pmBSL - ORD
1 stop31h 20mTurkish Airlines
Deal found 10/30$676
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.
mar. 12/211:50 amORD - BSL
1 stop22h 20mTurkish Airlines
sáb. 12/66:05 pmBSL - ORD
1 stop23h 00mTurkish Airlines
Deal found 10/30$687
This Turkish 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/311:50 amORD - BSL
1 stop22h 20mTurkish Airlines
dom. 12/710:55 amBSL - ORD
1 stop30h 10mTurkish Airlines
Deal found 10/30$704
This lastminute.com 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/2911:50 amORD - BSL
1 stop15h 10mTurkish Airlines
sáb. 12/136:05 pmBSL - ORD
1 stop23h 00mTurkish Airlines
Deal found 10/29$723
This lastminute.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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/1811:50 amORD - BSL
1 stop22h 20mTurkish Airlines
mar. 12/210:55 amBSL - ORD
1 stop30h 10mTurkish Airlines
Deal found 10/30$739

Cheap flight deals from Illinois to Basel

Keep the following information in mind while searching for Illinois to Basel flight deals. Data was last updated octubre 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$508
(United Airlines)

One-way from

$239
(Kiwi.com)

Popular in

November

Cheapest in

September

Average price

$1,219
Provider with most accurate pricing for Chicago (CHI)-Basel (EAP) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Basel (EAP) flights.
Search Deals
From Illinois to Basel (EAP)
Search Deals
One-way flight from Illinois to Basel (EAP)
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($226 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($59 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Basel 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 octubre 30, 2025.
Use the filters below to find and compare flights from Illinois to Basel that are best for you.

Fly from

Illinois

Fly to

Basel

Route

Depart

Return

Price

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

jue. 1/8

11:20 am-7:40 pm

2 stops25h 20m

Basel EuroAirport Swiss

dom. 1/11

9:50 am-5:18 pm

2 stops38h 28m

$508

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

mar. 1/6

3:11 pm-7:40 pm

2 stops21h 29m

Basel EuroAirport Swiss

dom. 1/11

1:10 pm-5:43 pm

2 stops35h 33m

$508

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

mié. 1/7

11:20 am-4:05 pm

2 stops21h 45m

Basel EuroAirport Swiss

dom. 1/11

1:10 pm-5:43 pm

2 stops35h 33m

$508

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

vie. 1/9

11:22 am-1:35 pm

2 stops19h 13m

Basel EuroAirport Swiss

dom. 1/11

8:15 pm-11:59 pm

2 stops34h 44m

$522

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

dom. 3/1

11:34 am-3:05 pm

2 stops20h 31m

Basel EuroAirport Swiss

vie. 3/13

7:00 am-9:48 pm

2 stops20h 48m

$525

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

dom. 3/1

3:50 pm-9:55 am

1 stop11h 05m

Basel EuroAirport Swiss

vie. 3/13

1:10 pm-10:49 pm

2 stops15h 39m

$547

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

mié. 1/28

11:50 am-10:00 am

1 stop15h 10m

Basel EuroAirport Swiss

mié. 2/11

6:05 pm-10:05 am

1 stop23h 00m

$604

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

mar. 1/27

8:20 pm-10:00 am

1 stop30h 40m

Basel EuroAirport Swiss

mar. 2/10

10:55 am-10:05 am

1 stop30h 10m

$609

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

jue. 2/26

8:20 pm-10:00 am

1 stop30h 40m

Basel EuroAirport Swiss

jue. 3/12

10:55 am-11:05 am

1 stop30h 10m

$609

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

mar. 3/31

11:25 am-9:45 am

1 stop15h 20m

Basel EuroAirport Swiss

mar. 4/14

7:00 pm-6:15 pm

1 stop30h 15m

$628

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 55 results
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Best time to book a flight from Illinois to Basel

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

Cheapflights Insights

Everything you need to know about your flight from Illinois to Basel
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Basel. 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 into for flights to Basel from Illinois?

    Located just 0.2 mi from the city center, Basel All airports (EAP) is the airport most travelers will use when flying to Basel from Illinois.

  • How long is the flight from Illinois to Basel?

    A quick flight from Illinois to Basel can take about 19h 13m. United Airlines provides one of the quickest options available for as low as $522. Airlines will cover a distance of 4630 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Illinois to Basel?

    While some choose either Lambert-St Louis - Basel EuroAirport Swiss or Chicago Midway - Basel EuroAirport Swiss, Chicago O'Hare Intl - Basel EuroAirport Swiss is the most popular route from Illinois to Basel.

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

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

  • How can I find direct flights from Illinois to Basel?

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

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

    Yes. Cheapflights offers flight deals from Illinois to Basel by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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