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

Return flights

22 May - 09 Jun	WestJet
20 May - 09 Jun	Frontier Airlines
21 May - 09 Jun	Porter Airlines (Canada) Ltd
22 May - 08 Jun	WestJet
22 May - 10 Jun	WestJet
05 May - 12 May	Aer Lingus
08 May - 15 May	Aer Lingus
02 May - 09 May	Aer Lingus
11 May - 18 May	Aer Lingus
26 May - 02 Jun	Aer Lingus
21 May - 28 May	Aer Lingus
31 May - 07 Jun	Aer Lingus
16 May - 23 May	Aer Lingus

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

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 May from $710

Return flights