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Cheap flights from Illinois to Basel from $293

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 11/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:19 pm - 2:10 pmSTL-BSL
16h 51m2 stops
American Airlines Logo
6:20 am - 6:57 pmBSL-STL
19h 37m2 stops
$474American Airlines
Find Deal
Fri, Feb 27 - Wed, Mar 4
Multiple Airlines Logo
4:05 pm - 1:35 pmSTL-BSL
14h 30m2 stops
Multiple Airlines Logo
6:45 am - 1:55 pmBSL-STL
14h 10m1 stop
$477Multiple Airlines
Find Deal
Fri, Feb 27 - Wed, Mar 4
American Airlines Logo
2:19 pm - 3:05 pmSTL-BSL
17h 46m2 stops
American Airlines Logo
7:00 am - 7:02 pmBSL-STL
18h 02m2 stops
$524American Airlines
Find Deal
Sun, Mar 1 - Fri, Mar 13
Lufthansa Logo
6:45 pm - 7:40 pmSTL-BSL
17h 55m2 stops
Lufthansa Logo
6:45 am - 2:55 pmBSL-STL
14h 10m1 stop
$528Lufthansa
Find Deal
Sun, Mar 1 - Fri, Mar 13
Lufthansa Logo
3:50 pm - 9:55 amSTL-BSL
11h 05m1 stop
Lufthansa Logo
6:45 am - 2:55 pmBSL-STL
14h 10m1 stop
$535Lufthansa
Find Deal
Sun, Mar 1 - Fri, Mar 13
Turkish Airlines Logo
11:50 am - 10:00 amORD-BSL
15h 10m1 stop
Turkish Airlines Logo
6:05 pm - 11:05 amBSL-ORD
23h 00m1 stop
$605Turkish Airlines
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Wed, Mar 4 - Wed, Mar 18
Turkish Airlines Logo
11:50 am - 5:10 pmORD-BSL
22h 20m1 stop
Turkish Airlines Logo
10:55 am - 10:05 amBSL-ORD
30h 10m1 stop
$631Turkish Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 16
Turkish Airlines Logo
11:50 am - 5:10 pmORD-BSL
22h 20m1 stop
Turkish Airlines Logo
6:05 pm - 10:05 amBSL-ORD
23h 00m1 stop
$638Turkish Airlines
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Fri, Dec 5 - Thu, Dec 11
United Airlines Logo
4:05 pm - 4:05 pmSTL-BSL
18h 00m2 stops
United Airlines Logo
8:20 am - 9:04 pmBSL-STL
19h 44m2 stops
$647United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
11:25 am - 12:30 pmSTL-BSL
18h 05m2 stops
United Airlines Logo
9:50 am - 10:29 pmBSL-STL
19h 39m2 stops
$1,113United Airlines
Find Deal
Tue, Dec 16 - Tue, Dec 23

American Airlines flights from Illinois to Basel EuroAirport Swiss

Our best American Airlines deals on Illinois to Basel EuroAirport Swiss flight tickets
American Airlines
Feb 27
STL2:19 pmLambert-St Louis
16h 51m
2 stops
BSL2:10 pmBasel EuroAirport Swiss
Mar 4
BSL6:20 amBasel EuroAirport Swiss
19h 37m
2 stops
STL6:57 pmLambert-St Louis
$474
Find similar
American Airlines
Mar 1
STL2:19 pmLambert-St Louis
17h 46m
2 stops
BSL3:05 pmBasel EuroAirport Swiss
Mar 13
BSL7:00 amBasel EuroAirport Swiss
18h 02m
2 stops
STL7:02 pmLambert-St Louis
$524
Find similar
American Airlines
Nov 6
ORD6:30 pmChicago O'Hare Intl
13h 35m
1 stop
BSL3:05 pmBasel EuroAirport Swiss
Nov 19
BSL6:20 amBasel EuroAirport Swiss
16h 05m
1 stop
ORD3:25 pmChicago O'Hare Intl
$602
Find similar

Lufthansa flights from Illinois to Basel EuroAirport Swiss

Our best Lufthansa deals on Illinois to Basel EuroAirport Swiss flight tickets
Lufthansa
Mar 1
STL6:45 pmLambert-St Louis
17h 55m
2 stops
BSL7:40 pmBasel EuroAirport Swiss
Mar 13
BSL6:45 amBasel EuroAirport Swiss
14h 10m
1 stop
STL2:55 pmLambert-St Louis
$528
Find similar
Lufthansa
Mar 1
STL3:50 pmLambert-St Louis
11h 05m
1 stop
BSL9:55 amBasel EuroAirport Swiss
Mar 13
BSL6:45 amBasel EuroAirport Swiss
14h 10m
1 stop
STL2:55 pmLambert-St Louis
$535
Find similar
Lufthansa
Mar 27
STL4:50 pmLambert-St Louis
11h 15m
1 stop
BSL10:05 amBasel EuroAirport Swiss
Mar 31
BSL11:00 amBasel EuroAirport Swiss
15h 48m
2 stops
STL7:48 pmLambert-St Louis
$653
Find similar

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 November 3, 2025.
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

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 2/27

2:19 pm-2:10 pm

2 stops16h 51m

Basel EuroAirport Swiss

Wed 3/4

6:20 am-6:57 pm

2 stops19h 37m

$474

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 2/27

4:05 pm-1:35 pm

2 stops14h 30m

Basel EuroAirport Swiss

Wed 3/4

6:45 am-1:55 pm

1 stop14h 10m

$477

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 3/1

2:19 pm-3:05 pm

2 stops17h 46m

Basel EuroAirport Swiss

Fri 3/13

7:00 am-7:02 pm

2 stops18h 02m

$524

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 3/1

6:45 pm-7:40 pm

2 stops17h 55m

Basel EuroAirport Swiss

Fri 3/13

6:45 am-2:55 pm

1 stop14h 10m

$528

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 3/1

3:50 pm-9:55 am

1 stop11h 05m

Basel EuroAirport Swiss

Fri 3/13

6:45 am-2:55 pm

1 stop14h 10m

$535

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Wed 3/4

11:50 am-10:00 am

1 stop15h 10m

Basel EuroAirport Swiss

Wed 3/18

6:05 pm-11:05 am

1 stop23h 00m

$605

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Tue 12/2

11:50 am-5:10 pm

1 stop22h 20m

Basel EuroAirport Swiss

Tue 12/16

10:55 am-10:05 am

1 stop30h 10m

$631

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Fri 12/5

11:50 am-5:10 pm

1 stop22h 20m

Basel EuroAirport Swiss

Thu 12/11

6:05 pm-10:05 am

1 stop23h 00m

$638

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 3/27

4:05 pm-4:05 pm

2 stops18h 00m

Basel EuroAirport Swiss

Tue 3/31

8:20 am-9:04 pm

2 stops19h 44m

$647

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Tue 12/16

11:25 am-12:30 pm

2 stops18h 05m

Basel EuroAirport Swiss

Tue 12/23

9:50 am-10:29 pm

2 stops19h 39m

$1,113

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 day to depart on your flight to Basel EuroAirport Swiss?

According to our data, Tuesday is the cheapest day to fly to Basel EuroAirport Swiss from Illinois. The lowest ticket price found for a Tuesday departure recently was $673. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Illinois to Basel EuroAirport Swiss on a Saturday will generally be more expensive and average around $915. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Basel EuroAirport Swiss?

According to our data, the cheapest time of day to fly to Basel EuroAirport Swiss is in the evening. momondo users have found flights departing from Illinois to Basel EuroAirport Swiss in the evening for as low as $671. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the afternoon because they tend to be around $914. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Direct flights

None
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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