Cheapest one-way flights from Chicago to Dublin in December from $239

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

One-Way flights

03 Dec Spirit Airlines
06 Dec Spirit Airlines
09 Dec Spirit Airlines
10 Dec Frontier Airlines
13 Dec Spirit Airlines
16 Dec Spirit Airlines
28 Dec Scandinavian Airlines
25 Dec Scandinavian Airlines
09 Dec Aer Lingus direct
03 Dec Aer Lingus direct

Also check the deals for return 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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