AirHint found the following cheapest return flights from Columbus (CMH) to Dublin (DUB) in May 2026 (see full year).
Return flights
| 06 May - 12 May | United | ||
| 06 May - 20 May | United | ||
| 01 May - 08 May | Aer Lingus | ||
| 11 May - 18 May | Aer Lingus |
Also check the deals for one-way flights from Columbus to Dublin in May.
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