Cheapest one-way flights from Denver to Dublin in December from $332

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

One-Way flights

01 Dec Frontier Airlines
16 Dec Icelandair
15 Dec Icelandair
26 Dec jetBlue
17 Dec Frontier Airlines
22 Dec Austrian Airlines
18 Dec Frontier Airlines
19 Dec Frontier Airlines
21 Dec Frontier Airlines

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

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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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