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

Return flights

26 Feb - 03 Mar	T'way Air
26 Feb - 02 Mar	T'way Air
27 Feb - 03 Mar	Air Busan
02 Feb - 07 Feb	Air China
02 Feb - 05 Feb	Air China
02 Feb - 09 Feb	Air China
02 Feb - 08 Feb	Air China
09 Feb - 14 Feb	Air Busan
06 Feb - 09 Feb	Air China
06 Feb - 13 Feb	Air Busan
02 Feb - 13 Feb	Air China
02 Feb - 12 Feb	Air China
24 Feb - 24 Mar	Air China
06 Feb - 12 Feb	China Eastern
23 Feb - 14 Mar	Air China
25 Feb - 15 Mar	Air China
25 Feb - 01 Mar	Air China
24 Feb - 10 Mar	Air China
09 Feb - 07 Mar	Air China
10 Feb - 10 Mar	Air China

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

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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Cheapest return flights from Seoul to Hanoi in February from $317

Return flights