AirHint found the following cheapest return flights from Thessaloniki (SKG) to Barcelona (BCN) in September 2025 (see full year).

Return flights

20 Sep - 25 Sep	Ryanair
27 Sep - 02 Oct	Ryanair
24 Sep - 02 Oct	Ryanair
30 Sep - 07 Oct	Ryanair
20 Sep - 22 Sep	Ryanair
20 Sep - 24 Sep	Ryanair
25 Sep - 02 Oct	Ryanair
30 Sep - 03 Oct	Ryanair
23 Sep - 26 Sep	Ryanair
19 Sep - 26 Sep	Ryanair
17 Sep - 22 Sep	Ryanair
29 Sep - 02 Oct	Ryanair
18 Sep - 25 Sep	Ryanair
28 Sep - 02 Oct	Ryanair
18 Sep - 24 Sep	Ryanair
20 Sep - 23 Sep	Ryanair
28 Sep - 01 Oct	Ryanair
15 Sep - 18 Sep	Ryanair
30 Sep - 04 Oct	Ryanair
29 Sep - 03 Oct	Ryanair

Also check the deals for one-way flights from Thessaloniki to Barcelona 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 Thessaloniki to Barcelona in September from 124€

Return flights