Cheapest return flights from Chicago to Dublin in September from 401€

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

Return flights

22 Sep - 02 Oct Scandinavian Airlines
29 Sep - 17 Oct Scandinavian Airlines
25 Sep - 03 Oct Scandinavian Airlines
14 Sep - 04 Oct Scandinavian Airlines
17 Sep - 23 Sep Aer Lingus direct
14 Sep - 25 Sep Aer Lingus direct
01 Sep - 10 Sep Aer Lingus direct
02 Sep - 16 Sep Aer Lingus direct
16 Sep - 23 Sep Aer Lingus direct
07 Sep - 16 Sep Aer Lingus direct
01 Sep - 09 Sep Aer Lingus direct
09 Sep - 16 Sep Aer Lingus direct
10 Sep - 19 Sep Aer Lingus direct
10 Sep - 18 Sep Aer Lingus direct
25 Sep - 02 Oct Scandinavian Airlines
25 Sep - 18 Oct Scandinavian Airlines
24 Sep - 08 Oct Spirit Airlines
10 Sep - 15 Oct Spirit Airlines
29 Sep - 17 Oct Aer Lingus direct
30 Sep - 07 Oct Aer Lingus 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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Feel free to contact us with any feedback or request another flight research.