AirHint found the following cheapest return flights from Chicago (ORD) to Dublin (DUB) in August 2026 (see full year).
Return flights
| 11 Aug - 19 Aug | Iberia | ||
| 11 Aug - 19 Aug | Aer Lingus | direct | |
| 24 Aug - 07 Sep | SWISS | ||
| 24 Aug - 07 Sep | Finnair | direct | |
| 01 Aug - 09 Aug | Aer Lingus | direct | |
| 06 Aug - 10 Aug | SWISS | ||
| 06 Aug - 10 Aug | Aer Lingus | direct |
Also check the deals for one-way flights from Chicago to Dublin in August.
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