Cheapest return flights from Chicago to Dublin in December from 328€

AirHint found the following cheapest return flights from Chicago (ORD) to Dublin (DUB) in December 2025 (see full year).

Return flights

31 Dec - 13 Jan Icelandair
09 Dec - 16 Dec Icelandair
07 Dec - 17 Dec Aer Lingus direct
03 Dec - 10 Dec Aer Lingus direct
03 Dec - 12 Dec Aer Lingus direct
09 Dec - 17 Dec Aer Lingus direct
07 Dec - 16 Dec Aer Lingus direct
09 Dec - 16 Dec Aer Lingus direct
31 Dec - 13 Jan Aer Lingus direct
10 Dec - 21 Jan Aer Lingus direct
28 Dec - 13 Jan Aer Lingus direct
29 Dec - 18 Jan Aer Lingus direct
08 Dec - 11 Jan Lufthansa
02 Dec - 09 Dec Icelandair
07 Dec - 14 Dec Aer Lingus direct
05 Dec - 09 Dec Aer Lingus direct
08 Dec - 11 Jan Aer Lingus direct
12 Dec - 13 Jan Aer Lingus direct
27 Dec - 13 Jan Aer Lingus direct
12 Dec - 11 Jan Aer Lingus direct

Also check the deals for one-way flights from Chicago to Dublin in December.

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