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

Return flights

30 Jun - 24 Jul	Jeju Air	direct
26 Jun - 29 Jun	VietJet Air
26 Jun - 30 Jun	VietJet Air
09 Jun - 17 Jun	Jeju Air	direct
04 Jun - 08 Jun	VietJet Air
15 Jun - 18 Jun	Jeju Air	direct
17 Jun - 20 Jun	VietJet Air
19 Jun - 26 Jun	VietJet Air
25 Jun - 29 Jun	VietJet Air
10 Jun - 17 Jun	VietJet Air
17 Jun - 21 Jun	VietJet Air
30 Jun - 02 Jul	Jeju Air	direct
29 Jun - 03 Jul	Jeju Air	direct
28 Jun - 03 Jul	Jeju Air	direct
19 Jun - 31 Jul	VietJet Air
19 Jun - 31 Jul	Asiana Airlines	direct

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

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 June from 152€

Return flights