Cheapest return flights from Chicago to Dublin in September from 392€

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

Return flights

16 Sep - 19 Sep Scandinavian Airlines
29 Sep - 17 Oct Scandinavian Airlines
08 Sep - 15 Sep Spirit Airlines
21 Sep - 26 Sep Scandinavian Airlines
14 Sep - 19 Sep Scandinavian Airlines
08 Sep - 17 Sep Frontier Airlines
05 Sep - 07 Sep jetBlue
26 Sep - 28 Sep Spirit Airlines
04 Sep - 08 Sep Frontier Airlines
04 Sep - 07 Sep Scandinavian Airlines
16 Sep - 22 Sep Spirit Airlines
10 Sep - 15 Oct Aer Lingus direct
25 Sep - 03 Oct Spirit Airlines
30 Sep - 16 Oct Spirit Airlines
18 Sep - 02 Oct Spirit Airlines
27 Sep - 09 Oct Turkish Airlines
19 Sep - 03 Oct Spirit Airlines
26 Sep - 09 Oct Spirit Airlines
30 Sep - 16 Oct Aer Lingus direct
26 Sep - 07 Oct Turkish Airlines

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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