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

Return flights

01 Oct - 31 Oct	Fly Play
17 Oct - 09 Nov	easyJet
27 Oct - 01 Nov	easyJet
04 Oct - 10 Oct	Fly Play
11 Oct - 18 Oct	easyJet
04 Oct - 10 Oct	Icelandair	direct
29 Oct - 06 Nov	Icelandair	direct
17 Oct - 09 Nov	Icelandair	direct
11 Oct - 18 Oct	Icelandair	direct
27 Oct - 01 Nov	Icelandair	direct
01 Oct - 31 Oct	Icelandair	direct

Also check the deals for one-way flights from Reykjavik to Dublin 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 Reykjavik to Dublin in October from $209

Return flights