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

Return flights

21 Apr - 29 Apr	Scandinavian Airlines
14 Apr - 22 Apr	Scandinavian Airlines
14 Apr - 26 Apr	Finnair
12 Apr - 20 Apr	Scandinavian Airlines
16 Apr - 27 Apr	Scandinavian Airlines
28 Apr - 06 May	Scandinavian Airlines
26 Apr - 04 May	Scandinavian Airlines
10 Apr - 18 Apr	Scandinavian Airlines
05 Apr - 13 Apr	Scandinavian Airlines
07 Apr - 15 Apr	Scandinavian Airlines
13 Apr - 15 Apr	Finnair
03 Apr - 11 Apr	Scandinavian Airlines
24 Apr - 02 May	Scandinavian Airlines

Also check the deals for one-way flights from Sandefjord to Seoul 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 Seoul in April from 802€

Return flights