Cheapest return DTW–DUB flights, May

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

Return flights

28 May - 31 May WestJet
22 May - 08 Jun Frontier Airlines
18 May - 22 May TAP
19 May - 27 May Frontier Airlines
16 May - 19 May Frontier Airlines
14 May - 21 May Frontier Airlines
22 May - 30 May Frontier Airlines
13 May - 27 May Frontier Airlines
13 May - 19 May Frontier Airlines
06 May - 13 May Frontier Airlines
05 May - 15 May Lufthansa

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

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