Cheapest one-way flights from Seoul to Hanoi in September from $55

AirHint found the following cheapest one-way flights from Seoul (ICN) to Hanoi (HAN) in September 2025 (see full year).

One-Way flights

15 Sep VietJet Air direct
07 Sep VietJet Air direct
24 Sep VietJet Air direct
14 Sep VietJet Air direct
08 Sep VietJet Air direct
25 Sep VietJet Air direct
28 Sep VietJet Air direct
06 Sep VietJet Air direct
09 Sep Jeju Air direct
11 Sep Jeju Air direct

Also check the deals for return flights from Seoul to Hanoi in September.

Skyscanner

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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