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Cheap flights from Illinois to Basel from $320

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 3/31. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
12:50 pm - 5:10 pm
ORD
-
BSL
22h 20m
1 stop
Turkish Airlines Logo
6:05 pm - 7:25 pm
BSL
-
ORD
31h 20m
1 stop
$573Turkish Airlines
Wed, Mar 18 - Wed, Mar 25
Turkish Airlines Logo
8:20 pm - 10:00 am
ORD
-
BSL
30h 40m
1 stop
Turkish Airlines Logo
10:55 am - 11:05 am
BSL
-
ORD
30h 10m
1 stop
$577Turkish Airlines
Thu, Mar 5 - Tue, Mar 10
Turkish Airlines Logo
8:20 pm - 10:00 am
ORD
-
BSL
30h 40m
1 stop
Turkish Airlines Logo
10:55 am - 11:05 am
BSL
-
ORD
30h 10m
1 stop
$601Turkish Airlines
Tue, Feb 24 - Tue, Mar 10
Multiple Airlines Logo
7:15 am - 11:00 pm
ORD
-
BSL
33h 45m
3 stops
Multiple Airlines Logo
7:25 am - 9:05 pm
BSL
-
ORD
19h 40m
2 stops
$644Multiple Airlines
Wed, Mar 18 - Wed, Mar 25
British Airways Logo
2:25 pm - 3:35 pm
STL
-
BSL
18h 10m
2 stops
British Airways Logo
6:00 pm - 9:12 pm
BSL
-
STL
34h 12m
2 stops
$688British Airways
Sat, Feb 21 - Sat, Feb 28
Multiple Airlines Logo
12:50 pm - 12:25 pm
ORD
-
BSL
17h 35m
2 stops
Multiple Airlines Logo
7:05 am - 11:05 am
BSL
-
ORD
34h 00m
2 stops
$710Multiple Airlines
Wed, Mar 18 - Wed, Mar 25
British Airways Logo
9:35 pm - 10:40 pm
STL
-
BSL
18h 05m
1 stop
British Airways Logo
6:10 am - 9:34 pm
BSL
-
STL
22h 24m
2 stops
$900British Airways
Wed, Jul 15 - Thu, Jul 23
United Airlines Logo
8:25 am - 7:40 pm
STL
-
BSL
28h 15m
2 stops
United Airlines Logo
8:15 am - 9:11 pm
BSL
-
STL
19h 56m
2 stops
$909United Airlines
Wed, Jul 15 - Thu, Jul 23
Lufthansa Logo
4:50 pm - 9:55 am
STL
-
BSL
11h 05m
1 stop
Lufthansa Logo
1:10 pm - 11:51 pm
BSL
-
STL
16h 41m
2 stops
$911Lufthansa
Wed, Mar 11 - Wed, Mar 18
Lufthansa Logo
3:50 pm - 9:55 am
STL
-
BSL
11h 05m
1 stop
Lufthansa Logo
1:10 pm - 11:51 pm
BSL
-
STL
16h 41m
2 stops
$923Lufthansa
Sun, Mar 1 - Sun, Mar 8

Lufthansa flights from Illinois to Basel EuroAirport Swiss

Our best Lufthansa deals on Illinois to Basel EuroAirport Swiss flight tickets
Lufthansa
Mar 1
STL3:50 pmLambert-St Louis
19h 30m
1 stop
BSL6:20 pmBasel EuroAirport Swiss
Mar 8
BSL6:45 amBasel EuroAirport Swiss
14h 10m
1 stop
STL1:55 pmLambert-St Louis
$818
Lufthansa
Mar 23
ORD10:50 pmChicago O'Hare Intl
11h 15m
1 stop
BSL4:05 pmBasel EuroAirport Swiss
Mar 31
BSL2:50 pmBasel EuroAirport Swiss
12h 05m
1 stop
ORD7:55 pmChicago O'Hare Intl
$838
Lufthansa
Mar 23
ORD10:50 pmChicago O'Hare Intl
11h 15m
1 stop
BSL4:05 pmBasel EuroAirport Swiss
Mar 31
BSL1:00 pmBasel EuroAirport Swiss
13h 55m
2 stops
ORD7:55 pmChicago O'Hare Intl
$860

KLM flights from Illinois to Basel EuroAirport Swiss

Our best KLM deals on Illinois to Basel EuroAirport Swiss flight tickets
KLM
Mar 5
MDW1:29 pmChicago Midway
14h 11m
2 stops
BSL10:40 amBasel EuroAirport Swiss
Mar 10
BSL6:05 amBasel EuroAirport Swiss
17h 17m
2 stops
MDW5:22 pmChicago Midway
$1,364
KLM
May 25
MDW1:22 pmChicago Midway
13h 23m
2 stops
BSL9:45 amBasel EuroAirport Swiss
Jun 1
BSL10:15 amBasel EuroAirport Swiss
14h 41m
2 stops
MDW5:56 pmChicago Midway
$2,232

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Basel EuroAirport Swiss 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 February 3, 2026.
Use the filters below to find and compare flights from Illinois to Basel EuroAirport Swiss that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Wed 3/18

12:50 pm-5:10 pm

1 stop22h 20m

Basel EuroAirport Swiss

Wed 3/25

6:05 pm-7:25 pm

1 stop31h 20m

$573

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Thu 3/5

8:20 pm-10:00 am

1 stop30h 40m

Basel EuroAirport Swiss

Tue 3/10

10:55 am-11:05 am

1 stop30h 10m

$577

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Tue 2/24

8:20 pm-10:00 am

1 stop30h 40m

Basel EuroAirport Swiss

Tue 3/10

10:55 am-11:05 am

1 stop30h 10m

$601

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Wed 3/18

7:15 am-11:00 pm

3 stops33h 45m

Basel EuroAirport Swiss

Wed 3/25

7:25 am-9:05 pm

2 stops19h 40m

$644

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sat 2/21

2:25 pm-3:35 pm

2 stops18h 10m

Basel EuroAirport Swiss

Sat 2/28

6:00 pm-9:12 pm

2 stops34h 12m

$688

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Wed 3/18

12:50 pm-12:25 pm

2 stops17h 35m

Basel EuroAirport Swiss

Wed 3/25

7:05 am-11:05 am

2 stops34h 00m

$710

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Wed 7/15

9:35 pm-10:40 pm

1 stop18h 05m

Basel EuroAirport Swiss

Thu 7/23

6:10 am-9:34 pm

2 stops22h 24m

$900

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Wed 7/15

8:25 am-7:40 pm

2 stops28h 15m

Basel EuroAirport Swiss

Thu 7/23

8:15 am-9:11 pm

2 stops19h 56m

$909

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Wed 3/11

4:50 pm-9:55 am

1 stop11h 05m

Basel EuroAirport Swiss

Wed 3/18

1:10 pm-11:51 pm

2 stops16h 41m

$911

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 3/1

3:50 pm-9:55 am

1 stop11h 05m

Basel EuroAirport Swiss

Sun 3/8

1:10 pm-11:51 pm

2 stops16h 41m

$923

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Illinois to Basel EuroAirport Swiss

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 EuroAirport Swiss?

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

Cheap Illinois to Basel EuroAirport Swiss flight deals and tips

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

Fastest flight time

10h 40m

Direct flights

None
The fastest flight from Illinois to Basel EuroAirport Swiss takes 10h 40m
There are no direct flights from Illinois to Basel EuroAirport Swiss. There are no popular flight routes from Illinois to Basel EuroAirport Swiss.
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  • When did momondo last update prices for flights from Illinois to Basel EuroAirport Swiss?

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Basel EuroAirport Swiss.

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

    The travel and health documents you'll need for your trip to Basel EuroAirport Swiss may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Basel EuroAirport Swiss. It is always advisable to seek advice from your airline or a trusted 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?

Price alerts on flights to Basel from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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