AirHint found the following cheapest return flights from Chicago (ORD) to Dublin (DUB) in August 2026 (see full year).
Return flights
| 16 Aug - 25 Aug | Aer Lingus | direct | |
| 02 Aug - 12 Aug | Aer Lingus | direct | |
| 02 Aug - 11 Aug | Aer Lingus | direct | |
| 02 Aug - 10 Aug | Finnair | direct | |
| 01 Aug - 10 Aug | Iberia | direct |
Also check the deals for one-way flights from Chicago to Dublin in August.
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