How does KAYAK find such low prices on flights from Illinois to Basel?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Basel.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Basel?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Basel from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Basel?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Basel with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Basel?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Basel from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$430 CHEAP FLIGHTS from Illinois to Basel (BSL)

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Flight Deals

Cheap Flights from Illinois to Basel

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Illinois to Basel

Sun, Oct 4 - Tue, Oct 20

8:10 pm - 6:20 pmORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

15h 10m1 stop Istanbul

10:40 am - 9:40 amBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

30h 00m1 stop Istanbul

$676Turkish Airlines

Mon, Nov 2 - Tue, Nov 17

12:45 pm - 9:50 amORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

14h 05m1 stop Istanbul

10:45 am - 10:00 amBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

30h 15m1 stop Istanbul

$677Turkish Airlines

Mon, Nov 2 - Tue, Nov 17

12:45 pm - 9:50 amORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

14h 05m1 stop Istanbul

10:45 am - 10:00 amBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

30h 15m1 stop Istanbul

$687Turkish Airlines

Wed, Nov 11 - Tue, Dec 15

8:15 pm - 9:50 amORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

30h 35m1 stop Istanbul

10:45 am - 10:00 amBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

30h 15m1 stop Istanbul

$688Turkish Airlines

Mon, Nov 2 - Tue, Nov 17

9:15 pm - 5:15 pmORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

37h 00m1 stop Istanbul

10:45 am - 10:00 amBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

30h 15m1 stop Istanbul

$698Turkish Airlines

Thu, Oct 29 - Thu, Nov 5

9:15 pm - 5:15 pmORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

38h 00m1 stop Istanbul

10:45 am - 7:20 pmBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

39h 35m1 stop Istanbul

$700Turkish Airlines

Wed, Oct 28 - Wed, Nov 4

9:15 pm - 5:15 pmORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

38h 00m1 stop Istanbul

6:10 pm - 7:20 pmBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

32h 10m1 stop Istanbul

$700Turkish Airlines

Mon, Nov 2 - Tue, Nov 17

12:45 pm - 9:50 amORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

14h 05m1 stop Istanbul

10:45 am - 10:00 amBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

30h 15m1 stop Istanbul

$701Turkish Airlines

Tue, Nov 3 - Tue, Nov 17

12:45 pm - 5:15 pmORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

21h 30m1 stop Istanbul

10:45 am - 10:00 amBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

30h 15m1 stop Istanbul

$707Turkish Airlines

Tue, Jan 12 - Tue, Jan 26

8:15 pm - 9:50 amORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

30h 35m1 stop Istanbul

10:45 am - 10:00 amBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

30h 15m1 stop Istanbul

$708Turkish Airlines

Recent last minute flight deals from Illinois to Basel

Sun, Sep 20 - Sun, Oct 4

8:10 pm - 6:20 pmORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

15h 10m1 stop Istanbul

7:15 pm - 9:40 amBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

21h 25m1 stop Istanbul

$1,331Turkish Airlines

Fri, Sep 18 - Fri, Oct 2

11:25 am - 9:45 amORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

15h 20m1 stop Istanbul

7:15 pm - 9:40 amBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

21h 25m1 stop Istanbul

$1,596Turkish Airlines

Sat, Sep 19 - Sat, Oct 3

8:10 pm - 9:45 amORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

30h 35m1 stop Istanbul

7:15 pm - 9:40 amBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

21h 25m1 stop Istanbul

$1,649Turkish Airlines

Fri, Sep 18 - Fri, Oct 2

11:25 am - 9:45 amORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

15h 20m1 stop Istanbul

7:15 pm - 9:40 amBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

21h 25m1 stop Istanbul

$1,684Turkish Airlines

Tue, Sep 15 - Thu, Sep 24

6:00 pm - 7:35 pmORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

18h 35m1 stop Munich Franz Josef Strauss

6:00 am - 11:00 amBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

12h 00m1 stop Frankfurt am Main

$2,512United Airlines

Tue, Sep 15 - Thu, Sep 24

6:30 pm - 2:05 pmORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

12h 35m1 stop Frankfurt am Main

2:50 pm - 10:06 pmBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

14h 16m2 stops Frankfurt am Main Toronto Pearson Intl

$2,533United Airlines

Thu, Sep 17 - Mon, Oct 5

5:00 pm - 10:55 amORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

10h 55m1 stop London Heathrow

12:10 pm - 5:35 pmBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

12h 25m1 stop London Heathrow

$12,229Multiple Airlines

Thu, Sep 17 - Mon, Oct 5

1:35 pm - 10:55 amORD Chicago O'Hare Intl-BSL Basel EuroAirport Swiss

14h 20m2 stops New York John F Kennedy Intl London Heathrow

12:10 pm - 5:35 pmBSL Basel EuroAirport Swiss-ORD Chicago O'Hare Intl

12h 25m1 stop London Heathrow

$14,701British Airways

Useful Info

Cheapest flight	$430

Flight from St. Louis to Basel

How does KAYAK find such low prices on flights from Illinois to Basel?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Basel.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Basel?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Basel from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Basel?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Basel with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Basel?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Basel from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.