Cheapest return flights from Chicago to Dublin in September from $394

Best time to book flights for Chicago (ORD) to Dublin (DUB) flights at AirHint

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

Return flights

22 Sep - 29 Sep Scandinavian Airlines
15 Sep - 29 Sep Scandinavian Airlines
01 Sep - 08 Sep Scandinavian Airlines
25 Sep - 06 Oct Scandinavian Airlines
18 Sep - 29 Sep Scandinavian Airlines
18 Sep - 22 Sep Scandinavian Airlines
04 Sep - 08 Sep Scandinavian Airlines
16 Sep - 03 Oct Scandinavian Airlines
18 Sep - 30 Sep TAP
25 Sep - 03 Oct Scandinavian Airlines
22 Sep - 26 Sep TAP
23 Sep - 30 Sep Scandinavian Airlines
06 Sep - 13 Sep Scandinavian Airlines
30 Sep - 07 Oct Turkish Airlines
26 Sep - 07 Oct Turkish Airlines
30 Sep - 07 Oct Aer Lingus direct
16 Sep - 03 Oct United direct
26 Sep - 07 Oct Aer Lingus direct
25 Sep - 03 Oct United direct
27 Sep - 04 Oct United 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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