Cheapest return flights from Denver to Dublin in December from 324€

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

Return flights

09 Dec - 12 Dec Icelandair
06 Dec - 13 Dec Icelandair
06 Dec - 16 Dec Delta
28 Dec - 08 Jan British Airways
16 Dec - 08 Jan Air Canada
15 Dec - 31 Dec Delta
08 Dec - 15 Dec United
16 Dec - 06 Jan Air Canada
27 Dec - 09 Jan United
05 Dec - 19 Dec United
15 Dec - 30 Dec Air Canada
13 Dec - 20 Dec Icelandair
17 Dec - 07 Jan United
18 Dec - 08 Jan KLM
13 Dec - 02 Jan Delta
23 Dec - 30 Dec United

Also check the deals for one-way flights from Denver 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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