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Cheap flights from Illinois to Basel from $344

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Basel departing on 9/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Illinois to Basel

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
11:45 am - 5:15 pm
ORD
-
BSL
22h 30m
1 stop
Turkish Airlines Logo
10:45 am - 6:20 pm
BSL
-
ORD
38h 35m
1 stop
$706Turkish Airlines
Thu, Nov 19 - Thu, Nov 26
Turkish Airlines Logo
11:25 am - 9:45 am
ORD
-
BSL
15h 20m
1 stop
Turkish Airlines Logo
7:10 pm - 9:40 am
BSL
-
ORD
21h 30m
1 stop
$707Turkish Airlines
Tue, Sep 29 - Tue, Oct 13
United Airlines Logo
3:15 pm - 4:05 pm
STL
-
BSL
17h 50m
2 stops
United Airlines Logo
1:10 pm - 11:25 pm
BSL
-
STL
17h 15m
2 stops
$759United Airlines
Mon, Nov 16 - Fri, Nov 20
Multiple Airlines Logo
8:45 am - 10:20 am
MDW
-
BSL
18h 35m
2 stops
Multiple Airlines Logo
6:00 am - 10:00 pm
BSL
-
MDW
23h 00m
2 stops
$903Multiple Airlines
Tue, Aug 25 - Thu, Sep 10
British Airways Logo
11:20 am - 6:15 pm
CMI
-
BSL
23h 55m
2 stops
British Airways Logo
7:00 am - 9:28 pm
BSL
-
CMI
21h 28m
2 stops
$982British Airways
Mon, Nov 16 - Fri, Nov 20
Delta Logo
7:00 am - 9:55 am
STL
-
BSL
19h 55m
2 stops
Delta Logo
2:25 pm - 11:31 pm
BSL
-
STL
16h 06m
2 stops
$1,018Delta
Wed, Aug 5 - Sat, Aug 15
United Airlines Logo
6:00 am - 9:55 am
STL
-
BSL
20h 55m
2 stops
United Airlines Logo
6:00 am - 9:29 pm
BSL
-
STL
22h 29m
2 stops
$1,035United Airlines
Sun, Jul 19 - Sun, Jul 26
Multiple Airlines Logo
10:51 am - 9:55 am
STL
-
BSL
16h 04m
2 stops
Multiple Airlines Logo
6:30 am - 5:24 pm
BSL
-
STL
17h 54m
2 stops
$1,048Multiple Airlines
Fri, Jul 10 - Tue, Jul 14
Delta Logo
9:22 am - 9:55 am
STL
-
BSL
17h 33m
2 stops
Delta Logo
10:15 am - 10:15 pm
BSL
-
STL
19h 00m
2 stops
$1,050Delta
Fri, Jul 3 - Tue, Jul 7
British Airways Logo
9:35 pm - 10:50 pm
STL
-
BSL
18h 15m
1 stop
British Airways Logo
6:00 am - 9:48 pm
BSL
-
STL
22h 48m
2 stops
$1,086British Airways
Fri, Jul 3 - Fri, Jul 17

Turkish Airlines flights from Illinois to Basel

Our best Turkish Airlines deals on Illinois to Basel flight tickets
Turkish Airlines
Sep 22
ORD11:25 amChicago O'Hare Intl
15h 20m
1 stop
BSL9:45 amBasel EuroAirport Swiss
Oct 7
BSL7:10 pmBasel EuroAirport Swiss
21h 30m
1 stop
ORD9:40 amChicago O'Hare Intl
$697
Turkish Airlines
Nov 19
ORD11:45 amChicago O'Hare Intl
22h 30m
1 stop
BSL5:15 pmBasel EuroAirport Swiss
Nov 26
BSL10:45 amBasel EuroAirport Swiss
38h 35m
1 stop
ORD6:20 pmChicago O'Hare Intl
$706
Turkish Airlines
Nov 3
ORD12:45 pmChicago O'Hare Intl
21h 30m
1 stop
BSL5:15 pmBasel EuroAirport Swiss
Nov 17
BSL10:45 amBasel EuroAirport Swiss
30h 15m
1 stop
ORD10:00 amChicago O'Hare Intl
$725

British Airways flights from Illinois to Basel

Our best British Airways deals on Illinois to Basel flight tickets
British Airways
Nov 16
CMI11:20 amChampaign University-Willard
23h 55m
2 stops
BSL6:15 pmBasel EuroAirport Swiss
Nov 20
BSL7:00 amBasel EuroAirport Swiss
21h 28m
2 stops
CMI9:28 pmChampaign University-Willard
$982
British Airways
Jul 3
STL9:35 pmLambert-St Louis
18h 15m
1 stop
BSL10:50 pmBasel EuroAirport Swiss
Jul 17
BSL6:00 amBasel EuroAirport Swiss
22h 48m
2 stops
STL9:48 pmLambert-St Louis
$1,086
British Airways
Aug 5
STL9:35 pmLambert-St Louis
14h 55m
1 stop
BSL7:30 pmBasel EuroAirport Swiss
Aug 15
BSL6:35 amBasel EuroAirport Swiss
20h 51m
2 stops
STL8:26 pmLambert-St Louis
$1,186

momondo 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, momondo users made 832,500 searches. Data last updated June 5, 2026.
Use the filters below to find and compare flights from Illinois to Basel that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Thu 11/19

11:45 am-5:15 pm

1 stop22h 30m

Basel EuroAirport Swiss

Thu 11/26

10:45 am-6:20 pm

1 stop38h 35m

$706

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Tue 9/29

11:25 am-9:45 am

1 stop15h 20m

Basel EuroAirport Swiss

Tue 10/13

7:10 pm-9:40 am

1 stop21h 30m

$707

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Mon 11/16

3:15 pm-4:05 pm

2 stops17h 50m

Basel EuroAirport Swiss

Fri 11/20

1:10 pm-11:25 pm

2 stops17h 15m

$759

ChicagoBasel

MDW - BSL

MDWBSL

Chicago Midway

Tue 8/25

8:45 am-10:20 am

2 stops18h 35m

Basel EuroAirport Swiss

Thu 9/10

6:00 am-10:00 pm

2 stops23h 00m

$903

ChampaignBasel

CMI - BSL

CMIBSL

Champaign University-Willard

Mon 11/16

11:20 am-6:15 pm

2 stops23h 55m

Basel EuroAirport Swiss

Fri 11/20

7:00 am-9:28 pm

2 stops21h 28m

$982

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Wed 8/5

7:00 am-9:55 am

2 stops19h 55m

Basel EuroAirport Swiss

Sat 8/15

2:25 pm-11:31 pm

2 stops16h 06m

$1,018

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 7/19

6:00 am-9:55 am

2 stops20h 55m

Basel EuroAirport Swiss

Sun 7/26

6:00 am-9:29 pm

2 stops22h 29m

$1,035
Quickest round-trip

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 7/10

10:51 am-9:55 am

2 stops16h 04m

Basel EuroAirport Swiss

Tue 7/14

6:30 am-5:24 pm

2 stops17h 54m

$1,048

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 7/3

9:22 am-9:55 am

2 stops17h 33m

Basel EuroAirport Swiss

Tue 7/7

10:15 am-10:15 pm

2 stops19h 00m

$1,050

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 7/3

9:35 pm-10:50 pm

1 stop18h 15m

Basel EuroAirport Swiss

Fri 7/17

6:00 am-9:48 pm

2 stops22h 48m

$1,086

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Basel from

How to get the cheapest flight ticket from Illinois to Basel

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Illinois to Basel?

British Airways, American Airlines, and Turkish Airlines are the most popular carriers operating from Illinois to Basel

Cheap Illinois to Basel flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Basel

Fastest flight time

13h 37m

Direct flights

None
The fastest flight from Illinois to Basel takes 13h 37m
There are no direct flights from Illinois to Basel. There are no popular flight routes from Illinois to Basel.
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Frequently asked questions about flying from Illinois to Basel

  • When did momondo last update prices for flights from Illinois to Basel?

    Prices for flights from Illinois to Basel were last updated today.

  • How old do you have to be to fly from Illinois to Basel?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Basel.

  • What documentation or ID do you need to fly to Basel?

    The required travel and health documents for your Basel trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Basel. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Basel?

It is quick and easy to find Illinois to Basel flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Basel that suits you.

Can I find flights from Illinois to Basel with flexible booking policies on momondo?

All flight searches from Illinois to Basel on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Illinois to Basel?

Once you have performed a search for Illinois to Basel flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Illinois to Basel right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Illinois to Basel now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Basel and let you know when they change.

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