Cheapest return flights from Chicago to Dublin in September from 390€

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

Return flights

01 Sep - 08 Sep Aer Lingus direct
02 Sep - 09 Sep Finnair
02 Sep - 09 Sep Aer Lingus direct
03 Sep - 10 Sep Finnair
03 Sep - 10 Sep Aer Lingus direct
14 Sep - 22 Sep Aer Lingus direct
23 Sep - 01 Oct Icelandair
23 Sep - 01 Oct Aer Lingus direct
04 Sep - 10 Sep Scandinavian Airlines
13 Sep - 21 Sep Aer Lingus direct
04 Sep - 10 Sep Aer Lingus direct
04 Sep - 13 Sep Lufthansa

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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