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

Return flights

06 Feb - 04 Mar	Air China
03 Feb - 07 Feb	Air China
12 Feb - 24 Feb	Air China
12 Feb - 25 Feb	Air China
13 Feb - 17 Feb	Air China
02 Feb - 09 Feb	Air China
18 Feb - 22 Feb	Air China
09 Feb - 13 Feb	Air China
13 Feb - 01 Mar	Air China
13 Feb - 03 Mar	Air China
27 Feb - 02 Mar	Air China
01 Feb - 04 Feb	Air China
07 Feb - 13 Feb	Air China
03 Feb - 08 Feb	Air China
26 Feb - 01 Mar	Air China
28 Feb - 06 Mar	Air China
08 Feb - 04 Mar	Air China
15 Feb - 07 Mar	Air China
14 Feb - 03 Mar	EVA Air
26 Feb - 02 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 507€

Return flights