September is by far the best month, wherein you can get cheapest flights for Athens to Chicago. 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.
ATH
03:55
Athens Eleftherios Venizelos International Airport
Mon , 08 Sep 2025
ORD
09:40
Chicago Chicago O Hare International Airport
Mon, 08 Sep 2025
ATH
19:00
Athens Eleftherios Venizelos International Airport
Mon , 08 Sep 2025
ORD
15:10
Chicago Chicago O Hare International Airport
Tue, 09 Sep 2025
ATH
09:00
Athens Eleftherios Venizelos International Airport
Mon , 08 Sep 2025
ORD
19:40
Chicago Chicago O Hare International Airport
Mon, 08 Sep 2025
ATH
16:50
Athens Eleftherios Venizelos International Airport
Sat , 13 Sep 2025
ORD
16:10
Chicago Chicago O Hare International Airport
Sun, 14 Sep 2025
ATH
20:00
Athens Eleftherios Venizelos International Airport
Mon , 08 Sep 2025
ORD
14:50
Chicago Chicago O Hare International Airport
Tue, 09 Sep 2025
ATH
23:10
Athens Eleftherios Venizelos International Airport
Mon , 08 Sep 2025
ORD
15:45
Chicago Chicago O Hare International Airport
Tue, 09 Sep 2025
ATH
06:05
Athens Eleftherios Venizelos International Airport
Mon , 08 Sep 2025
ORD
13:10
Chicago Chicago O Hare International Airport
Mon, 08 Sep 2025
ATH
14:55
Athens Eleftherios Venizelos International Airport
Mon , 08 Sep 2025
ORD
08:45
Chicago Chicago O Hare International Airport
Tue, 09 Sep 2025
ATH
07:45
Athens Eleftherios Venizelos International Airport
Sat , 13 Sep 2025
ORD
16:10
Chicago Chicago O Hare International Airport
Sat, 13 Sep 2025
ATH
07:45
Athens Eleftherios Venizelos International Airport
Mon , 08 Sep 2025
ORD
16:10
Chicago Chicago O Hare International Airport
Mon, 08 Sep 2025
ATH
07:45
Athens Eleftherios Venizelos International Airport
Mon , 08 Sep 2025
ORD
16:10
Chicago Chicago O Hare International Airport
Mon, 08 Sep 2025