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

Return flights

25 Dec - 17 Jan	United
02 Dec - 23 Dec	WestJet
10 Dec - 29 Dec	United
09 Dec - 30 Dec	Air France
04 Dec - 11 Dec	Aer Lingus	direct
23 Dec - 17 Jan	Frontier Airlines
02 Dec - 09 Dec	Aer Lingus	direct
09 Dec - 29 Dec	Iberia
06 Dec - 13 Dec	Aer Lingus	direct
10 Dec - 17 Dec	Aer Lingus
08 Dec - 15 Dec	Aer Lingus
12 Dec - 19 Dec	Alaska Airlines
31 Dec - 07 Jan	Aer Lingus
13 Dec - 03 Jan	Frontier Airlines
19 Dec - 03 Jan	WestJet
25 Dec - 01 Jan	Aer Lingus
13 Dec - 03 Jan	Aer Lingus	direct
28 Dec - 04 Jan	Aer Lingus

Also check the deals for one-way flights from Las Vegas to Dublin in December.

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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Cheapest return flights from Las Vegas to Dublin in December from 544€

Return flights