AirHint found the following cheapest one-way flights from Chicago (MDW) to Dublin (DUB) in September 2026 (see full year).
One-Way flights
| 01 Sep | Frontier Airlines | ||
| 06 Sep | WestJet | ||
| 07 Sep | Air France | ||
| 20 Sep | Air France | ||
| 25 Sep | WestJet | ||
| 24 Sep | Air France |
Also check the deals for return flights from Chicago to Dublin in September.
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