Cheapest return flights from Sandefjord to Keflavik in September from $238

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

Return flights

14 Sep - 23 Sep Wizz Air
12 Sep - 14 Sep Ryanair
16 Sep - 23 Sep Ryanair
05 Sep - 10 Sep Ryanair
19 Sep - 23 Sep Ryanair
13 Sep - 25 Sep Ryanair
01 Sep - 07 Sep Ryanair
23 Sep - 25 Sep Wizz Air
28 Sep - 01 Oct Wizz Air
29 Sep - 06 Oct Wizz Air
10 Sep - 16 Sep Lufthansa

Also check the deals for one-way flights from Sandefjord 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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