AirHint found the following cheapest return flights from Las Vegas (LAS) to Dublin (DUB) in January 2026 (see full year).

Return flights

26 Jan - 21 Feb	Frontier Airlines
20 Jan - 27 Jan	Aer Lingus	direct
08 Jan - 24 Jan	Frontier Airlines
29 Jan - 05 Feb	Aer Lingus	direct
17 Jan - 24 Jan	Aer Lingus	direct
08 Jan - 24 Jan	Aer Lingus	direct
04 Jan - 19 Jan	Delta
07 Jan - 14 Jan	Aer Lingus
14 Jan - 21 Jan	Aer Lingus
26 Jan - 02 Feb	Aer Lingus
09 Jan - 16 Jan	Aer Lingus
11 Jan - 18 Jan	Aer Lingus
23 Jan - 30 Jan	Aer Lingus

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

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 January from 569€

Return flights