AirHint found the following cheapest return flights from Keflavik (KEF) to Seoul (ICN) in March 2026 (see full year).
Return flights
| 11 Mar - 21 Mar | easyJet | ||
| 08 Mar - 14 Mar | easyJet | ||
| 17 Mar - 01 Apr | KLM | ||
| 22 Mar - 31 Mar | KLM | ||
| 16 Mar - 23 Mar | Finnair |
Also check the deals for one-way flights from Keflavik to Seoul in March.
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