Chiang Mai, Bangkok Don Mueang Intl, and Phuket City are the top three Nok Air airports based on our airline data. This may change if Nok Air makes updates to their flight routes due to supply and demand.
A flight from Bangkok Don Mueang Intl to Chiang Mai, which has 0 stops, is S$ 66 which is the least expensive round-trip domestic flight that Nok Air offers. For a one-way domestic Nok Air flight, the cheapest route is Bangkok Don Mueang Intl to Surat Thani (0 stops) for S$ 22.
Nok Air does not have flights from Singapore Changi at the moment. There are scheduled flights with Nok Air out of Hat Yai though (if you don’t mind flying from this airport). Flying with Thai Airways is recommended if you still want to fly from Singapore Changi.