AirHint found the following cheapest return flights from Haiphong (HPH) to Seoul (ICN) in September 2025 (see full year).
Return flights
| 29 Sep - 14 Oct | VietJet Air | ||
| 22 Sep - 27 Sep | VietJet Air | ||
| 21 Sep - 26 Sep | VietJet Air | ||
| 25 Sep - 02 Oct | VietJet Air | ||
| 22 Sep - 27 Sep | VietJet Air | direct |
Also check the deals for one-way flights from Haiphong to Seoul in September.
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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