Cheapest return flights from Chicago to Dublin in October from 343€

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

Return flights

23 Oct - 30 Oct Scandinavian Airlines
30 Oct - 06 Nov Scandinavian Airlines
31 Oct - 07 Nov TAP
20 Oct - 27 Oct Scandinavian Airlines
27 Oct - 03 Nov Scandinavian Airlines
29 Oct - 05 Nov Scandinavian Airlines
16 Oct - 23 Oct Scandinavian Airlines
19 Oct - 26 Oct Scandinavian Airlines
21 Oct - 28 Oct Scandinavian Airlines
26 Oct - 02 Nov Scandinavian Airlines
23 Oct - 28 Oct TAP
25 Oct - 01 Nov Scandinavian Airlines
14 Oct - 21 Oct Air Canada
11 Oct - 18 Oct Scandinavian Airlines
18 Oct - 25 Oct Scandinavian Airlines
09 Oct - 16 Oct Scandinavian Airlines
21 Oct - 04 Nov Scandinavian Airlines
26 Oct - 05 Nov Scandinavian Airlines
28 Oct - 04 Nov Spirit Airlines
31 Oct - 02 Nov Scandinavian Airlines

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

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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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