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

Return flights

22 Jul - 06 Aug	Spirit Airlines
22 Jul - 29 Jul	Spirit Airlines
21 Jul - 28 Jul	Spirit Airlines
30 Jul - 05 Aug	jetBlue
23 Jul - 07 Aug	jetBlue
23 Jul - 30 Jul	Spirit Airlines
02 Jul - 08 Jul	Spirit Airlines
21 Jul - 12 Aug	jetBlue
14 Jul - 21 Jul	Spirit Airlines
20 Jul - 29 Jul	Spirit Airlines
18 Jul - 26 Jul	jetBlue
12 Jul - 21 Jul	jetBlue
13 Jul - 21 Jul	jetBlue
17 Jul - 21 Jul	Spirit Airlines
30 Jul - 05 Aug	Delta	direct
21 Jul - 12 Aug	Delta	direct
23 Jul - 07 Aug	Delta	direct

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

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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Cheapest return flights from Detroit to Dublin in July from $499

Return flights