AirHint found the following cheapest return flights from Hong Kong (HKG) to Hanoi (HAN) in March 2026 (see full year).

Return flights

15 Mar - 22 Mar	HK Express	direct
08 Mar - 12 Mar	HK Express	direct
28 Mar - 31 Mar	HK Express	direct
05 Mar - 11 Mar	HK Express	direct
06 Mar - 11 Mar	HK Express	direct
15 Mar - 21 Mar	HK Express	direct
15 Mar - 19 Mar	HK Express	direct
16 Mar - 19 Mar	HK Express	direct
16 Mar - 20 Mar	HK Express	direct
15 Mar - 20 Mar	HK Express	direct
21 Mar - 02 Apr	HK Express	direct
20 Mar - 05 Apr	HK Express	direct
28 Mar - 07 Apr	HK Express	direct

Also check the deals for one-way flights from Hong Kong to Hanoi in March.

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 Hong Kong to Hanoi in March from 109€

Return flights