AirHint found the following cheapest return flights from Seoul (ICN) to Knokke (KNO) in April 2026 (see full year).
Return flights
| 22 Apr - 26 Apr | Thai AirAsia X | ||
| 01 Apr - 07 Apr | Scoot | ||
| 30 Apr - 05 May | AirAsia X |
Also check the deals for one-way flights from Seoul to Knokke in April.
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