AirHint found the following cheapest return flights from Hanoi (HAN) to Seoul (ICN) in August 2026 (see full year).
Return flights
| 25 Aug - 03 Sep | VietJet Air | direct | |
| 24 Aug - 04 Sep | Shandong Airlines | ||
| 01 Aug - 15 Aug | VietJet Air | ||
| 24 Aug - 04 Sep | Asiana Airlines | direct | |
| 01 Aug - 15 Aug | Vietnam Airlines | direct |
Also check the deals for one-way flights from Hanoi to Seoul in August.
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