March is by far the best month, wherein you can get cheapest flights for Chicago to Dublin. Meanwhile, December 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.
February- During this month the footfall is less so, the flight is gradually inexpensive.
February - is the cheapest month to book round trip flights.
 
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
20:15
Chicago Chicago O Hare International Airport
Fri , 07 Nov 2025

DUB
16:10
Dublin Dublin Airport
Sat, 08 Nov 2025

ORD
18:30
Chicago Chicago O Hare International Airport
Thu , 06 Nov 2025

DUB
10:15
Dublin Dublin Airport
Fri, 07 Nov 2025

ORD
15:50
Chicago Chicago O Hare International Airport
Fri , 07 Nov 2025

DUB
05:10
Dublin Dublin Airport
Sat, 08 Nov 2025

ORD
11:50
Chicago Chicago O Hare International Airport
Thu , 06 Nov 2025

DUB
14:25
Dublin Dublin Airport
Fri, 07 Nov 2025

ORD
18:30
Chicago Chicago O Hare International Airport
Fri , 07 Nov 2025

DUB
10:15
Dublin Dublin Airport
Sat, 08 Nov 2025

ORD
15:55
Chicago Chicago O Hare International Airport
Fri , 07 Nov 2025

DUB
05:15
Dublin Dublin Airport
Sat, 08 Nov 2025

ORD
18:35
Chicago Chicago O Hare International Airport
Fri , 07 Nov 2025

DUB
08:10
Dublin Dublin Airport
Sat, 08 Nov 2025

ORD
15:50
Chicago Chicago O Hare International Airport
Thu , 06 Nov 2025

DUB
05:10
Dublin Dublin Airport
Fri, 07 Nov 2025

ORD
15:55
Chicago Chicago O Hare International Airport
Thu , 06 Nov 2025

DUB
05:15
Dublin Dublin Airport
Fri, 07 Nov 2025

ORD
15:55
Chicago Chicago O Hare International Airport
Fri , 07 Nov 2025

DUB
07:10
Dublin Dublin Airport
Sat, 08 Nov 2025

ORD
20:20
Chicago Chicago O Hare International Airport
Fri , 07 Nov 2025

DUB
22:10
Dublin Dublin Airport
Sat, 08 Nov 2025









