Cheapest one-way flights from Chicago to Dublin in October from $240

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

One-Way flights

10 Oct Air Canada
08 Oct Spirit Airlines
25 Oct Spirit Airlines
27 Oct Spirit Airlines
30 Oct WestJet
29 Oct Icelandair
08 Oct Aer Lingus direct
30 Oct Aer Lingus direct
10 Oct Aer Lingus direct
25 Oct United direct

Also check the deals for return 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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