Cheapest return flights from Chicago to Dublin in October from $434

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

06 Oct - 13 Oct Scandinavian Airlines
07 Oct - 12 Oct Scandinavian Airlines
22 Oct - 02 Nov Icelandair
05 Oct - 11 Oct Scandinavian Airlines
30 Oct - 06 Nov Icelandair
30 Oct - 06 Nov Aer Lingus direct
22 Oct - 02 Nov Aer Lingus direct
23 Oct - 30 Oct Scandinavian Airlines
10 Oct - 17 Oct Aer Lingus direct
20 Oct - 27 Oct Aer Lingus direct
07 Oct - 12 Oct Aer Lingus direct
01 Oct - 13 Oct Air Canada
03 Oct - 10 Oct Icelandair
01 Oct - 05 Oct Icelandair

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

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.

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