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

Return flights

03 Oct - 14 Oct	VietJet Air
04 Oct - 14 Oct	VietJet Air
01 Oct - 13 Oct	VietJet Air
03 Oct - 13 Oct	VietJet Air
02 Oct - 11 Oct	VietJet Air
02 Oct - 13 Oct	VietJet Air
03 Oct - 11 Oct	VietJet Air
04 Oct - 11 Oct	VietJet Air
02 Oct - 12 Oct	VietJet Air
29 Oct - 04 Nov	VietJet Air
15 Oct - 19 Oct	VietJet Air
31 Oct - 04 Nov	VietJet Air
24 Oct - 04 Nov	VietJet Air
30 Oct - 04 Nov	VietJet Air
31 Oct - 07 Nov	VietJet Air
18 Oct - 02 Nov	VietJet Air
29 Oct - 02 Nov	VietJet Air
14 Oct - 12 Nov	VietJet Air
28 Oct - 04 Nov	VietJet Air
31 Oct - 05 Nov	VietJet Air

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

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 Hanoi to Busan in October from $187

Return flights