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Basel

$302+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — EAP
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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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 June 16, 2025.

Round-trip from

$581
(American Airlines)

One-way from

$302
(Kiwi.com)

Popular in

May

Cheapest in

September

Average price

$1,132
From Illinois to Basel (EAP)
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One-way flight from Illinois to Basel (EAP)
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Highest demand for flights based on searches. 19% potential increase in price ($244 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 16, 2025.

This American Airlines deal was found by Cheapflights users on 6/15. 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.
Tue 12/28:45 pmORD - BSL
1 stop18h 35mAmerican Airlines
Tue 12/96:55 amBSL - ORD
1 stop14h 00mAmerican Airlines
Deal found 6/15$551
This Booking.com deal was found by Cheapflights users on 6/15. 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 12/211:20 amORD - BSL
2 stops24h 10mMultiple Airlines
Tue 12/92:00 pmBSL - ORD
2 stops25h 57mMultiple Airlines
Deal found 6/15$563
This United Airlines deal was found by Cheapflights users on 6/14. 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 12/243:20 pmORD - BSL
1 stop20h 10mUnited Airlines
Tue 12/3010:40 amBSL - ORD
1 stop11h 40mUnited Airlines
Deal found 6/14$586
This British Airways deal was found by Cheapflights users on 6/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:55 pmORD - BSL
2 stops22h 10mBritish Airways
Tue 12/3011:05 amBSL - ORD
2 stops16h 02mBritish Airways
Deal found 6/14$598
This Mytrip deal was found by Cheapflights users on 6/15. 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.
Wed 11/269:50 pmORD - BSL
1 stop14h 50mLufthansa
Sat 12/62:15 pmBSL - ORD
1 stop12h 50mLufthansa
Deal found 6/15$600
This Air Canada deal was found by Cheapflights users on 6/14. 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.
Wed 11/2611:20 amORD - BSL
2 stops15h 20mAir Canada
Sat 12/610:50 amBSL - ORD
2 stops15h 42mAir Canada
Deal found 6/14$613
This Gotogate deal was found by Cheapflights users on 6/14. 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.
Tue 11/44:15 pmSTL - BSL
2 stops23h 15mMultiple Airlines
Sun 11/166:50 amBSL - STL
1 stop14h 05mMultiple Airlines
Deal found 6/14$628
This FlightHub deal was found by Cheapflights users on 6/14. 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.
Wed 8/2711:25 amORD - BSL
1 stop15h 15mTurkish Airlines
Sat 9/610:35 amBSL - ORD
1 stop18h 25mTurkish Airlines
Deal found 6/14$639
This Lufthansa deal was found by Cheapflights users on 6/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/264:50 pmSTL - BSL
1 stop14h 50mLufthansa
Sun 11/96:50 amBSL - STL
1 stop14h 05mLufthansa
Deal found 6/16$655
This Delta deal was found by Cheapflights users on 6/14. 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.
Tue 9/97:17 pmMDW - BSL
2 stops15h 33mDelta
Thu 9/2510:15 amBSL - MDW
2 stops18h 29mDelta
Deal found 6/14$657
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Sun 10/265:58 pmSTL - BSL
2 stops13h 42mUnited Airlines
Sun 11/96:50 amBSL - STL
1 stop14h 05mUnited Airlines
Deal found 6/16$660
This Air Canada deal was found by Cheapflights users on 6/14. 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.
Sun 10/264:15 pmSTL - BSL
2 stops15h 25mAir Canada
Sun 11/92:00 pmBSL - STL
2 stops32h 26mAir Canada
Deal found 6/14$669

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 June 16, 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

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Tue 9/9

10:35 pm-10:50 pm

1 stop17h 15m

Basel EuroAirport Swiss

Thu 9/25

6:10 am-11:50 am

1 stop12h 40m

$581

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Thu 8/14

9:40 pm-7:35 pm

1 stop14h 55m

Basel EuroAirport Swiss

Wed 8/20

11:25 am-11:15 pm

2 stops18h 50m

$612

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Tue 11/4

4:15 pm-10:30 pm

2 stops23h 15m

Basel EuroAirport Swiss

Sun 11/16

6:50 am-1:55 pm

1 stop14h 05m

$628

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Wed 8/27

11:25 am-9:40 am

1 stop15h 15m

Basel EuroAirport Swiss

Sat 9/6

10:35 am-10:00 pm

1 stop18h 25m

$639

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 10/26

4:50 pm-1:40 pm

1 stop14h 50m

Basel EuroAirport Swiss

Sun 11/9

6:50 am-1:55 pm

1 stop14h 05m

$655

ChicagoBasel

MDW - BSL

MDWBSL

Chicago Midway

Tue 9/9

7:17 pm-5:50 pm

2 stops15h 33m

Basel EuroAirport Swiss

Thu 9/25

10:15 am-9:44 pm

2 stops18h 29m

$657

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 10/26

5:58 pm-1:40 pm

2 stops13h 42m

Basel EuroAirport Swiss

Sun 11/9

6:50 am-1:55 pm

1 stop14h 05m

$660

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 10/26

4:15 pm-1:40 pm

2 stops15h 25m

Basel EuroAirport Swiss

Sun 11/9

2:00 pm-3:26 pm

2 stops32h 26m

$669

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Wed 8/27

3:35 pm-12:25 pm

1 stop13h 50m

Basel EuroAirport Swiss

Sat 9/6

11:30 am-8:11 pm

2 stops15h 41m

$729

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Wed 8/27

3:35 pm-12:25 pm

1 stop13h 50m

Basel EuroAirport Swiss

Sat 9/6

6:05 am-6:21 pm

2 stops19h 16m

$740

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 32 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

What is the cheapest time of day to fly from IL to EAP?

Find hourly flight availability from Illinois to Basel. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 16, 2025.

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

Rainfall in Basel by month

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

In terms of precipitation, rainfall in Basel ranges from 1.9 - 3.4 inches per month. June is typically the wettest month, when rainfall can reach 3.4 in. February is typically the driest time to visit Basel when rainfall is around 1.9 in.

Temperature in Basel by month

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

If weather is an important factor for your trip to Basel, 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 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Basel

Get insights into the airlines that provide service to Basel. 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 Basel. Reviews last updated June 16, 2025.
Read through reviews of airlines operating flights from Illinois to Basel, such as Delta, KLM and Austrian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,963 reviews
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,361 reviews
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
804 reviews
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,466 reviews
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,801 reviews
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    The cheapest airlines for a one-way flight from Illinois to Basel are British Airways ($440), American Airlines ($443), and Air Canada ($444).

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

    While some choose either Chicago Midway - Basel EuroAirport Swiss or Lambert-St Louis - 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.

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

    Currently, January is the cheapest month in which you can book a flight from Illinois to Basel (average of $545). Flying from Illinois to Basel in June is currently the most expensive (average of $1,132). 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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