AirHint found the following cheapest one-way flights from Tokyo (NRT) to Bangkok (DMK) in September 2025 (see full year).

One-Way flights

05 Sep	Thai AirAsia X	direct
06 Sep	Thai AirAsia X	direct
02 Sep	Thai AirAsia X	direct
08 Sep	Thai AirAsia X	direct
09 Sep	Thai AirAsia X	direct
01 Sep	Thai AirAsia X	direct
10 Sep	Thai AirAsia X	direct
22 Sep	Thai AirAsia X	direct
25 Sep	Thai AirAsia X	direct
29 Sep	Thai AirAsia X	direct

Also check the deals for return flights from Tokyo 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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Cheapest one-way flights from Tokyo to Bangkok in September from 116€

One-Way flights