AirHint found the following cheapest return flights from Columbus (CMH) to Dublin (DUB) in May 2026 (see full year).

Return flights

05 May - 12 May	Iberia
05 May - 22 May	Iberia
13 May - 26 May	Iberia
13 May - 23 May	Iberia
24 May - 06 Jun	Air Canada
19 May - 24 May	Air Canada
01 May - 08 May	Aer Lingus
26 May - 02 Jun	Aer Lingus
21 May - 28 May	Aer Lingus
31 May - 07 Jun	Aer Lingus
06 May - 13 May	Aer Lingus
16 May - 23 May	Aer Lingus
11 May - 18 May	Aer Lingus

Also check the deals for one-way flights from Columbus to Dublin in May.

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 May from 378€

Return flights