Wantoat Airport is a small domestic airstrip located in the Markham district of Morobe Province, Papua New Guinea. It serves the remote Wantoat valley, providing essential air access to communities that have limited or no road connectivity to larger population centers. The airport operates under Papua New Guinea's network of rural airstrips and is used primarily by light aircraft and small charter operators serving missionary, government, and community transport needs. It plays a critical role in delivering supplies and connecting isolated highland populations to the rest of the country.