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

Return flights

13 Aug - 20 Aug	United
15 Aug - 22 Aug	United
19 Aug - 26 Aug	United
05 Aug - 12 Aug	United
21 Aug - 28 Aug	United
27 Aug - 03 Sep	United
11 Aug - 18 Aug	United
25 Aug - 01 Sep	United
23 Aug - 30 Aug	United
09 Aug - 16 Aug	United
17 Aug - 24 Aug	United
29 Aug - 05 Sep	United
18 Aug - 23 Aug	United

Also check the deals for one-way flights from Columbus 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 Columbus to Dublin in August from $536

Return flights