AirHint found the following cheapest one-way flights from Seoul (GMP) to Hanoi (HAN) in April 2026 (see full year).
One-Way flights
| 06 Apr | Jeju Air | ||
| 21 Apr | Jeju Air | ||
| 01 Apr | Jeju Air | ||
| 22 Apr | Jeju Air | ||
| 07 Apr | Jeju Air | ||
| 16 Apr | Jeju Air | ||
| 18 Apr | Jeju Air | ||
| 11 Apr | Jeju Air | ||
| 04 Apr | Jeju Air | ||
| 12 Apr | Jeju Air |
Also check the deals for return flights from Seoul to Hanoi in April.
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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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