Cheapest return flights from Thessaloniki to Keflavik in September from $302

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

Return flights

30 Sep - 07 Oct Aegean Airlines
18 Sep - 21 Sep Ryanair
29 Sep - 05 Oct Aegean Airlines
25 Sep - 30 Sep Ryanair
18 Sep - 25 Sep Aegean Airlines
17 Sep - 20 Sep Wizz Air
16 Sep - 21 Sep Wizz Air
22 Sep - 28 Sep Ryanair
17 Sep - 23 Sep easyJet
26 Sep - 05 Oct Ryanair
24 Sep - 28 Sep Ryanair
24 Sep - 27 Sep Ryanair
03 Sep - 09 Sep Ryanair

Also check the deals for one-way flights from Thessaloniki to Keflavik in September.

Skyscanner

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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