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

Return flights

18 Aug - 27 Aug	Spirit Airlines
13 Aug - 20 Aug	United
21 Aug - 25 Aug	jetBlue
08 Aug - 12 Aug	Spirit Airlines
28 Aug - 14 Sep	Spirit Airlines
29 Aug - 02 Sep	Spirit Airlines
01 Aug - 16 Aug	Spirit Airlines
21 Aug - 23 Aug	Spirit Airlines
27 Aug - 02 Sep	United
29 Aug - 07 Sep	Spirit Airlines

Also check the deals for one-way flights from Houston 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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Cheapest return flights from Houston to Dublin in August from $550

Return flights