Cheapest return flights from Chicago to Dublin in September from 396€

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

Return flights

02 Sep - 09 Sep Iberia
03 Sep - 09 Sep SWISS
10 Sep - 19 Sep Lufthansa
03 Sep - 08 Sep Iberia
04 Sep - 09 Sep Lufthansa
04 Sep - 08 Sep Lufthansa
03 Sep - 09 Sep Finnair direct
04 Sep - 09 Sep Finnair direct
03 Sep - 08 Sep Finnair direct
04 Sep - 08 Sep Finnair direct

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

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