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

Return flights

21 Apr - 05 May	Scandinavian Airlines
23 Apr - 26 Apr	Wideroe
10 Apr - 13 Apr	Wideroe
21 Apr - 24 Apr	Wideroe
30 Apr - 03 May	Wideroe
24 Apr - 27 Apr	Wideroe
14 Apr - 17 Apr	Scandinavian Airlines
02 Apr - 06 Apr	Lufthansa
27 Apr - 30 Apr	Wideroe

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

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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Cheapest return flights from Sandefjord to Keflavik in April from $302

Return flights