Cheapest return flights from Chicago to Dublin in October from $390

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 October 2025 (see full year).

Return flights

21 Oct - 26 Oct Scandinavian Airlines
21 Oct - 16 Nov Scandinavian Airlines
13 Oct - 20 Oct Scandinavian Airlines
17 Oct - 24 Oct TAP
16 Oct - 23 Oct TAP
05 Oct - 12 Oct Scandinavian Airlines
26 Oct - 06 Nov Scandinavian Airlines
13 Oct - 24 Oct Scandinavian Airlines
28 Oct - 04 Nov Icelandair
29 Oct - 05 Nov Icelandair
27 Oct - 03 Nov Icelandair
28 Oct - 04 Nov Aer Lingus direct
29 Oct - 05 Nov Aer Lingus direct
26 Oct - 06 Nov Aer Lingus direct
09 Oct - 16 Oct TAP
21 Oct - 28 Oct Turkish Airlines
27 Oct - 03 Nov Aer Lingus direct
21 Oct - 16 Nov Aer Lingus direct
01 Oct - 07 Oct Turkish Airlines
01 Oct - 08 Oct Turkish 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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