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

Return flights

18 Oct - 21 Oct	Ryanair
07 Oct - 21 Oct	Aegean Airlines
07 Oct - 14 Oct	Aegean Airlines
25 Oct - 26 Oct	Ryanair
18 Oct - 19 Oct	Ryanair
03 Oct - 10 Oct	Ryanair
11 Oct - 21 Oct	Aegean Airlines
25 Oct - 02 Nov	Ryanair
13 Oct - 20 Oct	Ryanair
25 Oct - 27 Oct	Ryanair
06 Oct - 13 Oct	Austrian Airlines
22 Oct - 04 Nov	Ryanair
22 Oct - 02 Nov	Ryanair
30 Oct - 09 Nov	Ryanair
31 Oct - 09 Nov	Ryanair

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 $172

Return flights