Cheapest return flights from Chicago to Dublin in December from $538

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

02 Dec - 09 Dec Icelandair
02 Dec - 09 Dec Aer Lingus direct
11 Dec - 25 Dec Icelandair
02 Dec - 07 Dec Aer Lingus direct
08 Dec - 22 Dec American Airlines
25 Dec - 08 Jan KLM
23 Dec - 30 Dec Delta
23 Dec - 29 Dec Lufthansa
16 Dec - 23 Dec United
26 Dec - 07 Jan Air Canada
13 Dec - 02 Jan Delta
21 Dec - 02 Jan TAP
08 Dec - 22 Dec Aer Lingus direct
26 Dec - 09 Jan Aer Lingus direct
21 Dec - 03 Jan TAP
21 Dec - 04 Jan TAP
29 Dec - 04 Jan Air Canada
22 Dec - 05 Jan British Airways
21 Dec - 01 Jan TAP
16 Dec - 23 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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