Cheapest return flights from Thessaloniki to Keflavik in September from $208

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

09 Sep - 16 Sep SWISS
13 Sep - 20 Sep Ryanair
09 Sep - 17 Sep SWISS
09 Sep - 19 Sep SWISS
17 Sep - 23 Sep Air Serbia
13 Sep - 19 Sep Ryanair
11 Sep - 19 Sep Ryanair
14 Sep - 20 Sep Ryanair
09 Sep - 18 Sep SWISS
12 Sep - 19 Sep Air Serbia

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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