 The airfield was also an important layover stop of the ATC Karachi-Kunming air transport route.Flights operated west to Agra Airport, Willingdon Airfield (New Delhi), Gaya Airport, Assam (Borjhar Airport) and east into Dali Airport, and Kunming (Wujiaba Airport) in China

While the route kept the transports relatively free from enemy attack (Enemy action destroyed only seven aircraft, killing 13 men) it led over rugged terrain, through violent storms, with snow and ice at the higher altitudes the planes flew over the mountains.Flying the Himalayan Hump would turn out to be some of the most dangerous flying in the world.