AirHint found the following cheapest return flights from Okinawa (OKA) to Hanoi (HAN) in September 2025 (see full year).

Return flights

20 Sep - 22 Sep	HK Express
09 Sep - 16 Sep	HK Express
13 Sep - 15 Sep	HK Express
12 Sep - 15 Sep	HK Express
14 Sep - 22 Sep	HK Express
29 Sep - 05 Oct	HK Express
21 Sep - 24 Sep	HK Express
20 Sep - 29 Sep	Thai AirAsia
09 Sep - 29 Sep	Thai AirAsia
27 Sep - 29 Sep	Thai AirAsia
18 Sep - 29 Sep	Thai AirAsia
20 Sep - 04 Oct	Thai AirAsia
27 Sep - 04 Oct	Thai AirAsia
18 Sep - 04 Oct	Thai AirAsia
20 Sep - 06 Oct	Thai AirAsia
27 Sep - 06 Oct	Thai AirAsia
18 Sep - 06 Oct	Thai AirAsia
16 Sep - 04 Oct	Thai AirAsia
16 Sep - 06 Oct	Thai AirAsia
20 Sep - 01 Oct	Thai AirAsia

Also check the deals for one-way flights from Okinawa 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.

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Cheapest return flights from Okinawa to Hanoi in September from 253€

Return flights