Cheapest return flights from Chicago to Dublin in September from 352€

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

Return flights

02 Sep - 07 Sep Air Canada
07 Sep - 14 Sep Iberia
02 Sep - 08 Sep Air Canada
22 Sep - 29 Sep Air Canada
01 Sep - 07 Sep SWISS
14 Sep - 22 Sep Iberia
14 Sep - 21 Sep SWISS
13 Sep - 21 Sep SWISS
02 Sep - 08 Sep Aer Lingus direct
29 Sep - 04 Oct Delta
11 Sep - 19 Sep Air Canada
29 Sep - 04 Oct Aer Lingus direct

Also check the deals for one-way flights from Chicago to Dublin in September.

Powered by

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.