AirHint found the following cheapest return flights from Treviso (TSF) to Santander (SDR) in September 2025 (see full year).

Return flights

21 Sep - 28 Sep	Ryanair	direct
21 Sep - 09 Oct	Ryanair	direct
21 Sep - 02 Oct	Ryanair	direct
21 Sep - 05 Oct	Ryanair	direct
26 Sep - 28 Sep	Ryanair
28 Sep - 09 Oct	Ryanair	direct
28 Sep - 02 Oct	Ryanair	direct
21 Sep - 25 Sep	Ryanair
28 Sep - 16 Oct	Ryanair	direct
28 Sep - 12 Oct	Ryanair	direct
28 Sep - 05 Oct	Ryanair	direct
21 Sep - 25 Sep	Ryanair	direct
20 Sep - 27 Sep	Ryanair
25 Sep - 09 Oct	Ryanair	direct
25 Sep - 02 Oct	Ryanair	direct
22 Sep - 29 Sep	Ryanair
23 Sep - 29 Sep	Wizz Air Malta
19 Sep - 20 Sep	Ryanair

Also check the deals for one-way flights from Treviso to Santander 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 Treviso to Santander in September from 41€

Return flights