Cheapest return flights from Chicago to Dublin in October from $397

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

Return flights

20 Oct - 15 Nov Scandinavian Airlines
21 Oct - 29 Oct Scandinavian Airlines
25 Oct - 29 Oct Scandinavian Airlines
25 Oct - 01 Nov Scandinavian Airlines
06 Oct - 01 Nov Scandinavian Airlines
27 Oct - 22 Nov Scandinavian Airlines
23 Oct - 15 Nov TAP
21 Oct - 28 Oct Scandinavian Airlines
27 Oct - 05 Nov KLM
27 Oct - 05 Nov Aer Lingus direct
29 Oct - 05 Nov Aer Lingus direct
22 Oct - 31 Oct Air Canada
26 Oct - 29 Oct Scandinavian Airlines
29 Oct - 08 Nov TAP
29 Oct - 10 Nov SWISS
22 Oct - 27 Oct Air Canada
20 Oct - 28 Oct Scandinavian Airlines
13 Oct - 24 Oct Air Canada
08 Oct - 15 Oct Aer Lingus direct
27 Oct - 31 Oct 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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