Cheapest return flights from Chicago to Dublin in September from $445

AirHint found the following cheapest return flights from Chicago (ORD) to Dublin (DUB) in September 2026 (see full year).

Return flights

08 Sep - 16 Sep Scandinavian Airlines
27 Sep - 04 Oct Scandinavian Airlines
18 Sep - 24 Sep Scandinavian Airlines
11 Sep - 25 Sep Scandinavian Airlines
01 Sep - 15 Sep American Airlines
08 Sep - 16 Sep Iberia direct
26 Sep - 03 Oct Turkish Airlines
10 Sep - 19 Sep Iberia direct
27 Sep - 04 Oct United direct
11 Sep - 25 Sep Aer Lingus direct
18 Sep - 24 Sep American Airlines direct
26 Sep - 03 Oct Brussels Airlines direct

Also check the deals for one-way flights from Chicago to Dublin in September.

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