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

Return flights

25 Jul - 05 Aug	Air Canada
15 Jul - 29 Jul	Air Canada
24 Jul - 31 Jul	Delta
22 Jul - 29 Jul	Aer Lingus
25 Jul - 01 Aug	United
23 Jul - 01 Aug	Air Canada
24 Jul - 01 Aug	Air Canada
27 Jul - 03 Aug	Aer Lingus
17 Jul - 24 Jul	Aer Lingus
07 Jul - 14 Jul	Aer Lingus
12 Jul - 19 Jul	Aer Lingus
03 Jul - 19 Jul	Air Canada
02 Jul - 09 Jul	Aer Lingus

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

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Cheapest return flights from Columbus to Dublin in July from 486€

Return flights