Cheapest one-way flights from Chicago to Dublin in December from $218

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

One-Way flights

08 Dec Frontier Airlines
07 Dec Spirit Airlines
10 Dec Icelandair
04 Dec Spirit Airlines
03 Dec Frontier Airlines
01 Dec Icelandair
13 Dec Frontier Airlines
12 Dec Frontier Airlines
07 Dec Aer Lingus direct
01 Dec Aer Lingus direct

Also check the deals for return flights from Chicago to Dublin in December.

Powered by

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

Feel free to contact us with any feedback or request another flight research.