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

Return flights

07 May - 11 May	Aegean Airlines	direct
02 May - 12 May	Aegean Airlines	direct
18 May - 23 May	Air Serbia
13 May - 16 May	Air Serbia
22 May - 30 May	Air Serbia
22 May - 25 May	Air Serbia
18 May - 23 May	Aegean Airlines	direct
16 May - 18 May	Aegean Airlines
01 May - 15 May	Air Serbia
04 May - 11 May	Air Serbia
26 May - 01 Jun	Aegean Airlines
26 May - 06 Jun	Aegean Airlines
05 May - 02 Jun	Aegean Airlines
31 May - 03 Jun	LOT
26 May - 01 Jun	Lufthansa	direct
05 May - 02 Jun	Aegean Airlines	direct
31 May - 03 Jun	Aegean Airlines	direct

Also check the deals for one-way flights from Frankfurt to Thessaloniki 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 Frankfurt to Thessaloniki in May from $142

Return flights