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

Return flights

09 Sep - 16 Sep	China Southern
09 Sep - 17 Sep	China Southern
19 Sep - 30 Sep	China Southern
26 Sep - 07 Oct	China Eastern
30 Sep - 08 Oct	Air Macau
27 Sep - 07 Oct	China Eastern
29 Sep - 06 Oct	Cathay Pacific

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 157€

Return flights