Cheapest return TRF–KEF flights, September

AirHint found the following cheapest return flights from Sandefjord (TRF) to Keflavik (KEF) in September 2026 (see full year).

Return flights

16 Sep - 20 Sep Ryanair
26 Sep - 06 Oct Wizz Air
08 Sep - 22 Sep Ryanair
15 Sep - 22 Sep Ryanair
22 Sep - 08 Oct Ryanair
28 Sep - 04 Oct Ryanair
04 Sep - 08 Sep Ryanair
19 Sep - 29 Sep Ryanair
28 Sep - 03 Oct Ryanair
19 Sep - 22 Sep Scandinavian Airlines
12 Sep - 15 Sep Scandinavian Airlines
25 Sep - 03 Oct Ryanair
12 Sep - 18 Sep Scandinavian Airlines
23 Sep - 03 Oct Ryanair
12 Sep - 17 Sep Scandinavian Airlines
26 Sep - 29 Sep Scandinavian Airlines
29 Sep - 06 Oct Scandinavian Airlines
28 Sep - 01 Oct Scandinavian Airlines
29 Sep - 02 Oct Scandinavian Airlines
28 Sep - 05 Oct Scandinavian Airlines

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

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