Cheapest return flights from Chicago to Dublin in September from 470€

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

29 Sep - 13 Oct Scandinavian Airlines
02 Sep - 23 Sep United
15 Sep - 29 Sep Turkish Airlines
16 Sep - 22 Sep Turkish Airlines
17 Sep - 25 Sep Turkish Airlines
24 Sep - 07 Oct Turkish Airlines
10 Sep - 17 Sep Air Canada
02 Sep - 09 Sep United direct
02 Sep - 23 Sep United direct
17 Sep - 25 Sep United direct
05 Sep - 13 Sep Air Canada
24 Sep - 07 Oct United direct
01 Sep - 08 Sep United direct
18 Sep - 02 Oct United direct
29 Sep - 13 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