AirHint found the following cheapest return flights from Nanjing (NKG) to Bangkok (BKK) in September 2025 (see full year).

Return flights

25 Sep - 02 Oct	Shandong Airlines
21 Sep - 24 Sep	Hainan Airlines
21 Sep - 22 Sep	Hainan Airlines
21 Sep - 24 Sep	China Eastern	direct
30 Sep - 08 Oct	China Eastern
21 Sep - 22 Sep	China Eastern	direct

Also check the deals for one-way flights from Nanjing to Bangkok 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 Nanjing to Bangkok in September from 170€

Return flights