Cheapest return flights from Chicago to Dublin in September from $408

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

Return flights

14 Sep - 28 Sep Scandinavian Airlines
15 Sep - 28 Sep Scandinavian Airlines
03 Sep - 09 Sep Scandinavian Airlines
03 Sep - 27 Sep Scandinavian Airlines
03 Sep - 17 Sep Scandinavian Airlines
17 Sep - 01 Oct Scandinavian Airlines
25 Sep - 03 Oct Turkish Airlines
04 Sep - 27 Sep Scandinavian Airlines
17 Sep - 01 Oct Brussels Airlines direct
15 Sep - 28 Sep Finnair direct
04 Sep - 07 Sep Air Canada
03 Sep - 17 Sep Aer Lingus direct
04 Sep - 07 Sep Finnair direct
24 Sep - 10 Oct Aer Lingus direct
25 Sep - 03 Oct Brussels Airlines direct

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

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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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