Cheapest return flights from Denver to Dublin in October from $361

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

Return flights

07 Oct - 14 Oct Icelandair
16 Oct - 20 Oct Icelandair
02 Oct - 16 Oct Icelandair
31 Oct - 07 Nov Icelandair
09 Oct - 17 Oct Air Canada
15 Oct - 20 Oct British Airways
20 Oct - 24 Oct British Airways
09 Oct - 18 Oct Air Canada
26 Oct - 02 Nov United
15 Oct - 20 Oct Aer Lingus direct
16 Oct - 23 Oct United
06 Oct - 13 Oct Aer Lingus direct

Also check the deals for one-way flights from Denver 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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