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

Return flights

04 May - 08 May	Eurowings	direct
04 May - 11 May	Eurowings	direct
01 May - 08 May	Ryanair
06 May - 13 May	Eurowings	direct
07 May - 16 May	Eurowings
26 May - 29 May	Eurowings
11 May - 30 May	Eurowings
18 May - 06 Jun	Eurowings
14 May - 17 May	Ryanair
13 May - 17 May	Ryanair
15 May - 17 May	Eurowings
30 May - 06 Jun	Eurowings
28 May - 01 Jun	Austrian Airlines
18 May - 08 Jun	Austrian Airlines
18 May - 08 Jun	Eurowings	direct
28 May - 01 Jun	Eurowings	direct
18 May - 06 Jun	Eurowings	direct

Also check the deals for one-way flights from Cologne 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.

Book a cheap hotel in Thessaloniki

Cheap car rent in Thessaloniki

Cheapest return flights from Cologne to Thessaloniki in May from $149

Return flights