Tumlingtar Airport (IATA: TMI, ICAO: VNTR) is a domestic airport located in Tumlingtar[1] serving Sankhuwasabha District, a district in Koshi Province in Nepal.

It is the main tourist gateway to Makalu Barun National Park.

[2] This airport was first conceptualized to provide air transport facilities to inaccessible areas of Mechi, Koshi and Sagarmatha zones.

[4] Airport was initially built with a runway length of 3300 ft designed for DC-3s.

[5] A budget of NPR 2,60,000 was allocated for the fiscal year of 1971-72 for the purpose of construction of the fair weather airport.