- Macas Airport, officially known as General Manuel Serrano Airport, is a small domestic airport located in the city of Macas in Ecuador. It serves as the main gateway for travelers visiting the Morona-Santiago Province and the surrounding areas. The airport has a single runway and offers limited commercial flights to destinations within Ecuador, primarily to the capital city of Quito. The facilities at Macas Airport are relatively basic, with a small terminal building and amenities for passengers.