Cheapest return flights from Chicago to Dublin in September from 356€

AirHint found the following cheapest return flights from Chicago (ORD) to Dublin (DUB) in September 2025 (see full year).

Return flights

25 Sep - 30 Sep TAP
25 Sep - 29 Sep TAP
29 Sep - 17 Oct Scandinavian Airlines
16 Sep - 22 Sep Scandinavian Airlines
14 Sep - 25 Sep Aer Lingus direct
01 Sep - 09 Sep Aer Lingus direct
09 Sep - 16 Sep Aer Lingus direct
03 Sep - 10 Sep Aer Lingus direct
09 Sep - 14 Sep Scandinavian Airlines
23 Sep - 29 Sep Scandinavian Airlines
09 Sep - 18 Sep Aer Lingus direct
29 Sep - 17 Oct Aer Lingus direct
30 Sep - 07 Oct Aer Lingus direct
17 Sep - 01 Oct Aer Lingus
17 Sep - 01 Oct Finnair direct

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

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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