Cheapest return flights from Denver to Dublin in December from 365€

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

Return flights

07 Dec - 16 Dec Air France
12 Dec - 16 Dec Lufthansa
05 Dec - 13 Dec United
03 Dec - 10 Dec Lufthansa
02 Dec - 09 Dec Air France
02 Dec - 18 Dec United
29 Dec - 05 Jan Lufthansa
29 Dec - 04 Jan Lufthansa
27 Dec - 03 Jan Lufthansa
31 Dec - 07 Jan Aer Lingus
22 Dec - 30 Dec Delta
30 Dec - 04 Jan United
23 Dec - 27 Dec Lufthansa
19 Dec - 04 Jan Frontier Airlines
22 Dec - 03 Jan Frontier Airlines
19 Dec - 26 Dec Aer Lingus
25 Dec - 01 Jan Aer Lingus
21 Dec - 28 Dec Aer Lingus
25 Dec - 05 Jan Aer Lingus

Also check the deals for one-way flights from Denver 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.