Cheapest return flights from Chicago to Dublin in December from $437

Best time to book flights for Chicago (ORD) to Dublin (DUB) flights at AirHint

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

Return flights

07 Dec - 14 Dec Icelandair
28 Dec - 09 Jan Lufthansa
10 Dec - 17 Dec Icelandair
10 Dec - 17 Dec Aer Lingus direct
28 Dec - 09 Jan Aer Lingus direct
07 Dec - 14 Dec Aer Lingus direct
23 Dec - 01 Jan Lufthansa
21 Dec - 28 Dec TAP
26 Dec - 02 Jan TAP
21 Dec - 02 Jan TAP
23 Dec - 02 Jan Lufthansa
18 Dec - 25 Dec Air Canada
19 Dec - 26 Dec Icelandair
20 Dec - 03 Jan Air Serbia
23 Dec - 01 Jan Aer Lingus direct
21 Dec - 28 Dec Aer Lingus direct
19 Dec - 26 Dec Aer Lingus direct

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

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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