Mae Sot Airport (MAQ) is an domestic airport serving Mae Sot, a town in the northern Tak Province on the Myanmar border.
A new passenger terminal opened at the beginning of 2019 with a capacity for 1.7 million passengers, a large increase from the previous terminal's capacity of 170,000. Capacity for parking has also been increased.
Following the runway upgrade which is currently taking place which will allow larger planes to land, Thai Air Asia are planning to add this airport to their schedule. Destinations have not yet been announced.
Currently only Nok air operate flights 3 flights a day to Bangkok, Don Muang from the airport. They used to fly to from Mae Sot to Yangon, Myanmar, but this route was cancelled January 2018 due to lack of demand.
Wisdom Airways fly Cessna 208 Caravan aircraft from Mae Sot to Chiang Mai. These flights started on 3rd March 2019 but you either have to use the official website for booking, which at the time of writing, had a booking form that didn't work, or go to the sales counter at the airport.