Cheapest return flights from Chicago to Dublin in December from $543

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
01 Dec - 18 Dec Icelandair
12 Dec - 19 Dec Icelandair
01 Dec - 18 Dec Aer Lingus direct
19 Dec - 31 Dec Air Canada
20 Dec - 28 Dec Air Canada
22 Dec - 29 Dec United
22 Dec - 29 Dec Aer Lingus direct
19 Dec - 31 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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin