Cheapest return flights from Seoul to Hanoi in October from $233

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

AirHint found the following cheapest return flights from Seoul (ICN) to Hanoi (HAN) in October 2025 (see full year).

Return flights

22 Oct - 24 Oct Asiana Airlines direct
24 Oct - 29 Oct Asiana Airlines direct
21 Oct - 25 Oct Asiana Airlines direct
01 Oct - 07 Oct Cathay Pacific
01 Oct - 08 Oct China Airlines
08 Oct - 11 Oct Cathay Pacific
08 Oct - 12 Oct Korean Air direct
01 Oct - 12 Oct China Airlines
01 Oct - 12 Oct Korean Air direct
07 Oct - 12 Oct Korean Air direct

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

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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