September is by far the best month, wherein you can get cheapest flights for Chicago to Frankfurt. Meanwhile, is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
Disclaimer - All the mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.
ORD
15:00
Chicago Chicago O Hare International Airport
Mon , 01 Sep 2025
FRA
10:50
Frankfurt Frankfurt am Main Airport
Tue, 02 Sep 2025
ORD
19:15
Chicago Chicago O Hare International Airport
Mon , 01 Sep 2025
FRA
14:40
Frankfurt Frankfurt am Main Airport
Tue, 02 Sep 2025
ORD
15:45
Chicago Chicago O Hare International Airport
Tue , 02 Sep 2025
FRA
10:15
Frankfurt Frankfurt am Main Airport
Wed, 03 Sep 2025
ORD
22:15
Chicago Chicago O Hare International Airport
Mon , 01 Sep 2025
FRA
13:00
Frankfurt Frankfurt am Main Airport
Wed, 03 Sep 2025
ORD
21:40
Chicago Chicago O Hare International Airport
Mon , 01 Sep 2025
FRA
22:40
Frankfurt Frankfurt am Main Airport
Tue, 02 Sep 2025
ORD
11:25
Chicago Chicago O Hare International Airport
Mon , 01 Sep 2025
FRA
10:00
Frankfurt Frankfurt am Main Airport
Tue, 02 Sep 2025
ORD
21:40
Chicago Chicago O Hare International Airport
Mon , 01 Sep 2025
FRA
19:00
Frankfurt Frankfurt am Main Airport
Tue, 02 Sep 2025
ORD
19:25
Chicago Chicago O Hare International Airport
Mon , 01 Sep 2025
FRA
13:00
Frankfurt Frankfurt am Main Airport
Tue, 02 Sep 2025
ORD
15:45
Chicago Chicago O Hare International Airport
Mon , 01 Sep 2025
FRA
10:15
Frankfurt Frankfurt am Main Airport
Tue, 02 Sep 2025
ORD
18:10
Chicago Chicago O Hare International Airport
Mon , 01 Sep 2025
FRA
22:20
Frankfurt Frankfurt am Main Airport
Tue, 02 Sep 2025
ORD
18:10
Chicago Chicago O Hare International Airport
Mon , 01 Sep 2025
FRA
18:50
Frankfurt Frankfurt am Main Airport
Tue, 02 Sep 2025