AirHint found the following cheapest return flights from Detroit (DTW) to Dublin (DUB) in August 2025 (see full year).

Return flights

05 Aug - 21 Aug	Spirit Airlines
11 Aug - 21 Aug	Spirit Airlines
11 Aug - 22 Aug	Spirit Airlines
26 Aug - 09 Sep	Spirit Airlines
05 Aug - 22 Aug	jetBlue
05 Aug - 26 Aug	jetBlue
05 Aug - 25 Aug	jetBlue
11 Aug - 26 Aug	jetBlue
19 Aug - 02 Sep	Spirit Airlines
06 Aug - 13 Aug	Spirit Airlines
05 Aug - 20 Aug	jetBlue
12 Aug - 20 Aug	Spirit Airlines
26 Aug - 16 Sep	jetBlue
11 Aug - 03 Sep	jetBlue
23 Aug - 03 Sep	jetBlue
20 Aug - 03 Sep	Spirit Airlines
11 Aug - 05 Sep	jetBlue
05 Aug - 02 Sep	jetBlue
11 Aug - 02 Sep	jetBlue
12 Aug - 09 Sep	jetBlue

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

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 Detroit to Dublin in August from $445

Return flights