AirHint found the following cheapest return flights from Thessaloniki (SKG) to Madrid (MAD) in August 2025 (see full year).

Return flights

22 Aug - 29 Aug	SWISS
20 Aug - 30 Aug	SWISS
20 Aug - 29 Aug	SWISS
22 Aug - 25 Aug	SWISS
04 Aug - 27 Aug	Air Serbia
22 Aug - 27 Aug	SWISS
20 Aug - 27 Aug	Ryanair
22 Aug - 28 Aug	SWISS
15 Aug - 20 Aug	Ryanair
15 Aug - 22 Aug	Ryanair
28 Aug - 02 Sep	Ryanair
21 Aug - 04 Sep	Ryanair
24 Aug - 02 Sep	Ryanair
28 Aug - 01 Sep	Ryanair
29 Aug - 06 Sep	SWISS
30 Aug - 02 Sep	Ryanair
30 Aug - 03 Sep	Ryanair
30 Aug - 07 Sep	Ryanair
29 Aug - 01 Sep	Ryanair

Also check the deals for one-way flights from Thessaloniki to Madrid 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 Thessaloniki to Madrid in August from 209€

Return flights