Cheapest return flights from Hong Kong to Hanoi in September from $227
AirHint found the following cheapest return flights from Hong Kong (HKG) to Hanoi (HAN) in September 2025 (see full year).
Return flights
| 17 Sep - 27 Sep | Thai AirAsia | ||
| 17 Sep - 02 Oct | Thai AirAsia |
Also check the deals for one-way flights from Hong Kong to Hanoi in September.
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.
