AirHint found the following cheapest return flights from Thessaloniki (SKG) to Porto (OPO) in May 2026 (see full year).

Return flights

12 May - 19 May	Ryanair
05 May - 09 May	Aegean Airlines
04 May - 09 May	Ryanair
12 May - 16 May	Ryanair
03 May - 08 May	Jet2
11 May - 17 May	Ryanair
20 May - 26 May	Ryanair
11 May - 20 May	Ryanair
06 May - 10 May	Ryanair
07 May - 10 May	Ryanair
30 May - 02 Jun	Air Serbia
29 May - 01 Jun	Air Serbia
28 May - 01 Jun	Ryanair

Also check the deals for one-way flights from Thessaloniki to Porto in May.

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 Porto in May from 142€

Return flights