AirHint found the following cheapest return flights from Santander (SDR) to Bucharest (OTP) in August 2025 (see full year).

Return flights

05 Aug - 11 Aug	Ryanair
19 Aug - 27 Aug	Iberia
12 Aug - 26 Aug	Ryanair
24 Aug - 01 Sep	Vueling Airlines
11 Aug - 23 Aug	Ryanair
05 Aug - 16 Aug	Ryanair
09 Aug - 16 Aug	Iberia
03 Aug - 31 Aug	Vueling Airlines
14 Aug - 24 Aug	Ryanair

Also check the deals for one-way flights from Santander to Bucharest in August.

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 Santander to Bucharest in August from 213€

Return flights