Cheapest return flights from Hanoi to Seoul in April from $375

Best time to book flights for Hanoi (HAN) to Seoul (ICN) flights at AirHint

AirHint found the following cheapest return flights from Hanoi (HAN) to Seoul (ICN) in April 2026 (see full year).

Return flights

02 Apr - 07 Apr Asiana Airlines direct
17 Apr - 27 Apr AirAsia
22 Apr - 27 Apr AirAsia
21 Apr - 27 Apr AirAsia
07 Apr - 17 Apr AirAsia
07 Apr - 27 Apr AirAsia
10 Apr - 17 Apr AirAsia
10 Apr - 27 Apr AirAsia
07 Apr - 10 Apr AirAsia
17 Apr - 29 Apr AirAsia
17 Apr - 01 May AirAsia
22 Apr - 01 May AirAsia
27 Apr - 01 May AirAsia
21 Apr - 01 May AirAsia

Also check the deals for one-way flights from Hanoi to Seoul 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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