AirHint found the following cheapest return flights from San Sebastian (EAS) to Milano (MXP) in September 2025 (see full year).

Return flights

23 Sep - 07 Oct	Vueling Airlines
22 Sep - 07 Oct	Vueling Airlines
22 Sep - 22 Sep	Vueling Airlines
23 Sep - 14 Oct	Vueling Airlines
27 Sep - 03 Oct	Volotea
23 Sep - 27 Sep	Vueling Airlines
22 Sep - 27 Sep	Vueling Airlines
23 Sep - 01 Oct	Vueling Airlines
22 Sep - 01 Oct	Vueling Airlines
23 Sep - 03 Oct	Vueling Airlines
22 Sep - 03 Oct	Vueling Airlines
23 Sep - 12 Oct	Vueling Airlines
22 Sep - 12 Oct	Vueling Airlines
15 Sep - 27 Sep	Vueling Airlines
03 Sep - 22 Sep	Vueling Airlines
15 Sep - 22 Sep	Vueling Airlines

Also check the deals for one-way flights from San Sebastian to Milano 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 San Sebastian to Milano in September from $195

Return flights