HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Basel

$390+ Cheap flights from Illinois to Basel EuroAirport Swiss (BSL)

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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BSL
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Basel with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 July 31, 2025.

Round-trip from

$553
(oojo)

One-way from

$488
(Cheapflightsfares)

Popular in

May

Cheapest in

September

Average price

$683
From Illinois to Basel EuroAirport Swiss
Search Deals
One-way flight from Illinois to Basel EuroAirport Swiss
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($241 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 July 31, 2025.

This oojo deal was found by Cheapflights users on 7/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/97:50 pmORD - BSL
1 stop15h 10mTurkish Airlines
Thu 9/256:55 pmBSL - ORD
1 stop21h 45mTurkish Airlines
Deal found 7/30$553
This Gotogate deal was found by Cheapflights users on 7/29. 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.
Sat 9/66:00 pmORD - BSL
2 stops33h 55mAir Canada
Fri 9/198:25 amBSL - ORD
2 stops18h 46mAir Canada
Deal found 7/29$651
This Lufthansa deal was found by Cheapflights users on 7/29. 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 55mLufthansa
Sun 11/96:45 amBSL - STL
1 stop14h 10mLufthansa
Deal found 7/29$656
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Sun 10/262:15 pmSTL - BSL
2 stops18h 50mAmerican Airlines
Sun 11/96:35 amBSL - STL
2 stops19h 55mAmerican Airlines
Deal found 7/30$663
This FlightHub deal was found by Cheapflights users on 7/31. 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 12/249:50 pmORD - BSL
1 stop11h 10mLufthansa
Mon 1/128:15 pmBSL - ORD
1 stop29h 10mLufthansa
Deal found 7/31$663
This United Airlines deal was found by Cheapflights users on 7/31. 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 12/245:50 pmORD - BSL
2 stops15h 10mUnited Airlines
Mon 1/121:05 pmBSL - ORD
1 stop32h 05mUnited Airlines
Deal found 7/31$676
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Mon 9/1510:40 amORD - BSL
2 stops17h 10mMultiple Airlines
Fri 10/38:25 amBSL - ORD
1 stop18h 30mMultiple Airlines
Deal found 7/30$698
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Wed 12/245:10 pmORD - BSL
1 stop21h 55mAmerican Airlines
Sun 1/116:35 amBSL - ORD
1 stop15h 50mAmerican Airlines
Deal found 7/31$699
This Gurufare deal was found by Cheapflights users on 7/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/295:40 pmORD - BSL
2 stops15h 15mBritish Airways
Sun 11/25:35 amBSL - ORD
1 stop15h 50mBritish Airways
Deal found 7/29$707
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 8/261:39 pmSTL - BSL
2 stops15h 46mUnited Airlines
Tue 9/211:25 amBSL - STL
2 stops39h 32mUnited Airlines
Deal found 7/28$715
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Sun 9/141:30 pmSTL - BSL
2 stops17h 10mMultiple Airlines
Sun 9/216:20 amBSL - STL
2 stops20h 37mMultiple Airlines
Deal found 7/30$718
This Delta deal was found by Cheapflights users on 7/28. 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.
Fri 11/141:05 pmMDW - BSL
2 stops14h 10mDelta
Tue 11/1810:30 amBSL - MDW
2 stops18h 14mDelta
Deal found 7/28$907

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 July 31, 2025.
Use the filters below to find and compare flights from Illinois to Basel EuroAirport Swiss 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

7:50 pm-6:00 pm

1 stop15h 10m

Basel EuroAirport Swiss

Thu 9/25

6:55 pm-9:40 am

1 stop21h 45m

$553

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Sat 9/6

6:00 pm-10:55 am

2 stops33h 55m

Basel EuroAirport Swiss

Fri 9/19

8:25 am-8:11 pm

2 stops18h 46m

$651

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 10/26

4:50 pm-1:45 pm

1 stop14h 55m

Basel EuroAirport Swiss

Sun 11/9

6:45 am-1:55 pm

1 stop14h 10m

$656

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 10/26

2:15 pm-3:05 pm

2 stops18h 50m

Basel EuroAirport Swiss

Sun 11/9

6:35 am-7:30 pm

2 stops19h 55m

$663

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Tue 8/19

3:35 pm-9:10 am

1 stop10h 35m

Basel EuroAirport Swiss

Tue 9/2

8:30 am-12:55 pm

1 stop11h 25m

$684

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Mon 9/15

10:40 am-10:50 am

2 stops17h 10m

Basel EuroAirport Swiss

Fri 10/3

8:25 am-7:55 pm

1 stop18h 30m

$698

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Wed 10/29

5:40 pm-2:55 pm

2 stops15h 15m

Basel EuroAirport Swiss

Sun 11/2

5:35 am-3:25 pm

1 stop15h 50m

$707

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Wed 10/29

7:25 pm-2:55 pm

1 stop13h 30m

Basel EuroAirport Swiss

Sun 11/2

5:35 am-5:55 pm

2 stops18h 20m

$710

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Tue 8/26

1:39 pm-12:25 pm

2 stops15h 46m

Basel EuroAirport Swiss

Tue 9/2

11:25 am-7:57 pm

2 stops39h 32m

$715

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 9/14

1:30 pm-1:40 pm

2 stops17h 10m

Basel EuroAirport Swiss

Sun 9/21

6:20 am-7:57 pm

2 stops20h 37m

$718

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 25 results
1
2
3

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 EuroAirport Swiss
No data available for this route at this time. Please check back soon.

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 July 31, 2025.
Read reviews from past customers who have flown Delta, KLM, and Air France from Illinois to Basel EuroAirport Swiss. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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
1,465 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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!
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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?

    If you book a flight to Basel from Illinois, you will be flying to EuroAirport Swiss, which is the city’s only airport. Basel EuroAirport Swiss (BSL) is located 3.6 mi from the center of Basel.

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

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as $488. However, be on the lookout for offers from Turkish Airlines and Air Canada, as they are both options that can get you from Illinois to Basel EuroAirport Swiss for a low price.

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

    Most travelers choose Chicago O'Hare Intl - Basel EuroAirport Swiss, Chicago Midway - Basel EuroAirport Swiss or Lambert-St Louis - Basel EuroAirport Swiss when deciding on the best route from Illinois to Basel EuroAirport Swiss.

  • 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 EuroAirport Swiss?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Basel EuroAirport Swiss (average of $545). Flying from Illinois to Basel EuroAirport Swiss 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Basel

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Basel flights
John F Kennedy Intl to Basel flights
Newark to Basel flights
Dallas/Fort Worth to Basel flights
Atlanta to Basel flights
Miami to Basel flights
O'Hare Intl to Basel flights
Boston to Basel flights
Los Angeles to Basel flights
San Francisco to Basel flights
Dulles Intl to Basel flights
Hobby to Basel flights
Sky Harbor Intl to Basel flights
Denver to Basel flights
Baltimore to Basel flights
Columbus to Basel flights
Reagan-National to Basel flights
Detroit to Basel flights
Orlando to Basel flights
Philadelphia to Basel flights
Tampa to Basel flights
George Bush Intcntl to Basel flights
Las Vegas to Basel flights
Minneapolis to Basel flights
San Antonio to Basel flights
San Jose to Basel flights
Knoxville to Basel flights
Charlotte to Basel flights
Austin to Basel flights
Midway to Basel flights
Portland to Basel flights
St. Louis to Basel flights
Jacksonville to Basel flights
Kansas City to Basel flights
Salt Lake City to Basel flights
San Diego to Basel flights
South Bend to Basel flights
Des Moines to Basel flights
Fort Lauderdale to Basel flights
Indianapolis to Basel flights
West Palm Beach to Basel flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.