AirHint found the following cheapest return flights from Manchester (MAN) to Bilbao (BIO) in September 2025 (see full year).

Return flights

16 Sep - 18 Sep	easyJet
09 Sep - 11 Sep	easyJet
23 Sep - 26 Sep	easyJet
14 Sep - 17 Sep	easyJet
23 Sep - 30 Sep	Vueling Airlines
28 Sep - 30 Sep	easyJet
01 Sep - 06 Sep	easyJet
06 Sep - 11 Sep	Vueling Airlines
16 Sep - 19 Sep	Vueling Airlines
03 Sep - 10 Sep	Ryanair
29 Sep - 01 Oct	easyJet
29 Sep - 02 Oct	easyJet
28 Sep - 01 Oct	easyJet
23 Sep - 05 Oct	easyJet
28 Sep - 05 Oct	easyJet
27 Sep - 16 Oct	Vueling Airlines
27 Sep - 15 Oct	Vueling Airlines
27 Sep - 08 Oct	Vueling Airlines
23 Sep - 08 Oct	Vueling Airlines
20 Sep - 08 Oct	Vueling Airlines

Also check the deals for one-way flights from Manchester to Bilbao in September.

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 Manchester to Bilbao in September from 87€

Return flights