Cheapest return flights from Thessaloniki to Keflavik in September from $318

Best time to book flights for Thessaloniki (SKG) to Keflavik (KEF) flights at AirHint

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

Return flights

03 Sep - 10 Sep Air Serbia
15 Sep - 24 Sep Transavia France
17 Sep - 25 Sep easyJet
14 Sep - 21 Sep Ryanair
19 Sep - 25 Sep Air Serbia
05 Sep - 08 Sep Ryanair
14 Sep - 20 Sep Ryanair
13 Sep - 21 Sep easyJet
05 Sep - 14 Sep Air Serbia
12 Sep - 18 Sep Ryanair

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

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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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