HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Basel

$487+ 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 6/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BSL
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$679
(oojo)

One-way from

$487
(Kiwi.com)

Popular in

May

Cheapest in

July

Average price

$728
Provider with most accurate pricing for Chicago (CHI)-Basel (EAP) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Basel (EAP) flights.
Search Deals
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. 14% potential increase in price ($184 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 31, 2025.

This oojo deal was found by Cheapflights users on 3/30. 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 9/911:25 amORD - BSL
1 stop15h 15mTurkish Airlines
Thu 9/2510:35 amBSL - ORD
1 stop30h 05mTurkish Airlines
Deal found 3/30$571
This oojo deal was found by Cheapflights users on 3/30. 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.
Sun 10/266:27 pmSTL - BSL
2 stops18h 33mBritish Airways
Sun 11/911:20 amBSL - STL
2 stops17h 21mBritish Airways
Deal found 3/30$685
This United deal was found by Cheapflights users on 3/30. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/264:45 pmSTL - BSL
1 stop19h 25mUnited Airlines
Sun 11/99:35 amBSL - STL
2 stops17h 46mUnited Airlines
Deal found 3/30$696
This Mytrip deal was found by Cheapflights users on 3/30. 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.
Tue 5/138:40 amORD - BSL
2 stops21h 10mMultiple Airlines
Tue 5/207:05 pmBSL - ORD
2 stops32h 07mMultiple Airlines
Deal found 3/30$701
This Travelocity deal was found by Cheapflights users on 3/29. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/154:05 pmSTL - BSL
2 stops13h 20mMultiple Airlines
Thu 10/236:05 amBSL - STL
2 stops16h 11mMultiple Airlines
Deal found 3/29$734
This Lufthansa deal was found by Cheapflights users on 3/30. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/264:45 pmSTL - BSL
1 stop19h 25mLufthansa
Sun 11/96:50 amBSL - STL
1 stop14h 05mLufthansa
Deal found 3/30$782
This British Airways deal was found by Cheapflights users on 3/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:45 pmORD - BSL
1 stop12h 25mBritish Airways
Fri 11/1411:15 amBSL - ORD
2 stops17h 24mBritish Airways
Deal found 3/30$783
This American Airlines deal was found by Cheapflights users on 3/30. 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.
Tue 9/911:52 amORD - BSL
2 stops16h 03mAmerican Airlines
Thu 9/256:10 amBSL - ORD
2 stops16h 35mAmerican Airlines
Deal found 3/30$839
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1110:35 amORD - BSL
2 stops15h 55mDelta
Fri 9/510:15 amBSL - ORD
1 stop10h 55mDelta
Deal found 3/30$845
This KLM deal was found by Cheapflights users on 3/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/105:20 pmORD - BSL
2 stops13h 30mKLM
Mon 9/82:25 pmBSL - ORD
1 stop30h 45mKLM
Deal found 3/30$850
This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/147:10 amORD - BSL
2 stops22h 15mUnited Airlines
Wed 5/211:00 pmBSL - ORD
2 stops26h 02mUnited Airlines
Deal found 3/30$858
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/92:00 pmMDW - BSL
2 stops16h 50mDelta
Thu 9/256:15 amBSL - MDW
2 stops15h 39mDelta
Deal found 3/30$860

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 March 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

11:25 am-9:40 am

1 stop15h 15m

Basel EuroAirport Swiss

Thu 9/25

10:35 am-9:40 am

1 stop30h 05m

$571

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Tue 5/13

8:40 am-12:50 pm

2 stops21h 10m

Basel EuroAirport Swiss

Tue 5/20

7:05 pm-8:12 pm

2 stops32h 07m

$701

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Wed 5/14

1:30 pm-7:35 pm

2 stops23h 05m

Basel EuroAirport Swiss

Wed 5/21

11:25 am-7:58 pm

2 stops15h 33m

$775

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Wed 5/14

11:45 am-11:20 am

2 stops16h 35m

Basel EuroAirport Swiss

Wed 5/21

6:40 am-5:00 pm

1 stop17h 20m

$835

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Tue 9/9

11:52 am-10:55 am

2 stops16h 03m

Basel EuroAirport Swiss

Thu 9/25

6:10 am-3:45 pm

2 stops16h 35m

$839

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Mon 8/11

10:35 am-9:30 am

2 stops15h 55m

Basel EuroAirport Swiss

Fri 9/5

10:15 am-2:10 pm

1 stop10h 55m

$845

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Sun 8/10

5:20 pm-1:50 pm

2 stops13h 30m

Basel EuroAirport Swiss

Mon 9/8

2:25 pm-2:10 pm

1 stop30h 45m

$850

ChicagoBasel

ORD - BSL

ORDBSL

Chicago O'Hare Intl

Wed 5/14

7:10 am-12:25 pm

2 stops22h 15m

Basel EuroAirport Swiss

Wed 5/21

1:00 pm-8:02 am

2 stops26h 02m

$858

ChicagoBasel

MDW - BSL

MDWBSL

Chicago Midway

Tue 9/9

2:00 pm-1:50 pm

2 stops16h 50m

Basel EuroAirport Swiss

Thu 9/25

6:15 am-2:54 pm

2 stops15h 39m

$860

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Tue 8/5

11:51 am-9:30 am

2 stops14h 39m

Basel EuroAirport Swiss

Mon 8/11

2:25 pm-6:03 pm

2 stops34h 38m

$980

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 29 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

What is the cheapest time of day to fly from IL to BSL?

Find hourly flight availability from Illinois to Basel. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Basel EuroAirport Swiss as you normally would.

Rainfall in Basel by month

Plan your trip to Basel by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Basel EuroAirport Swiss ranges from 1.9 - 3.4 inches per month. June is typically the wettest month, when rainfall can reach 3.4 in. February is typically the driest time to visit Basel EuroAirport Swiss when rainfall is around 1.9 in.

Temperature in Basel by month

Plan your trip to Basel by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Basel EuroAirport Swiss, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

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 March 31, 2025.
Get a feel of what it's like to fly with Delta, KLM and Austrian Airlines from Illinois to Basel by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
770 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,425 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,614 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 Turkish Airlines, with whom users have recently found tickets for as low as $570. However, be on the lookout for offers from American Airlines and United Airlines, 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.
Los Angeles to Basel flights
John F Kennedy Intl to Basel flights
San Francisco to Basel flights
Newark to Basel flights
Dulles Intl to Basel flights
Boston to Basel flights
Dallas/Fort Worth to Basel flights
Baltimore to Basel flights
O'Hare Intl to Basel flights
Santa Ana to Basel flights
Sky Harbor Intl to Basel flights
Seattle to Basel flights
Reagan-National to Basel flights
Atlanta to Basel flights
Detroit to Basel flights
Orlando to Basel flights
Hobby to Basel flights
Philadelphia to Basel flights
San Jose to Basel flights
Austin to Basel flights
Tampa to Basel flights
San Diego to Basel flights
Miami to Basel flights
Denver to Basel flights
Charlotte to Basel flights
George Bush Intcntl to Basel flights
Raleigh to Basel flights
Nashville to Basel flights
Midway to Basel flights
Minneapolis to Basel flights
Indianapolis to Basel flights
Cincinnati to Basel flights
Fort Lauderdale to Basel flights
Greensboro to Basel flights
Las Vegas to Basel flights
Kansas City to Basel flights
Oakland to Basel flights
Portland to Basel flights
Pittsburgh to Basel flights
Cleveland to Basel flights
Des Moines to Basel flights
South Bend to Basel flights
St. Louis to Basel flights
Columbus to Basel flights
Jacksonville 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.