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

Return flights

23 Oct - 30 Oct	Aer Lingus
23 Oct - 29 Oct	Aer Lingus
23 Oct - 28 Oct	Aer Lingus
22 Oct - 29 Oct	Air Europa
22 Oct - 23 Oct	Aer Lingus
22 Oct - 29 Oct	Aer Lingus	direct
23 Oct - 27 Oct	Aer Lingus
30 Oct - 01 Nov	KLM
24 Oct - 31 Oct	Lufthansa
25 Oct - 29 Oct	Vueling Airlines
24 Oct - 29 Oct	Air Europa
22 Oct - 10 Nov	Vueling Airlines
25 Oct - 02 Nov	Vueling Airlines
22 Oct - 11 Nov	Vueling Airlines
29 Oct - 04 Nov	Volotea
30 Oct - 05 Nov	Volotea
24 Oct - 03 Nov	Air Europa
31 Oct - 03 Nov	Volotea
28 Oct - 03 Nov	easyJet
31 Oct - 04 Nov	Volotea

Also check the deals for one-way flights from Bilbao 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 Bilbao to Dublin in October from 154€

Return flights