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

Return flights

07 Oct - 14 Oct	Ryanair	direct
07 Oct - 21 Oct	Ryanair
07 Oct - 21 Oct	Ryanair	direct
18 Oct - 21 Oct	Ryanair	direct
05 Oct - 12 Oct	Ryanair
07 Oct - 25 Oct	Ryanair	direct
18 Oct - 25 Oct	Ryanair
18 Oct - 25 Oct	Ryanair	direct
25 Oct - 01 Nov	Ryanair
26 Oct - 01 Nov	Aer Lingus

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

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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Cheapest return flights from Dublin to Kos in October from $163

Return flights