Costa Marques Airport (CQS)

Costa Marques Airport (CQS/SWCQ) is a remote and essential regional aviation facility located in the municipality of Costa Marques, in the western state of Rondônia, Brazil. Situated near the banks of the Guaporé River, which forms the international border with Bolivia, the airport serves as a vital transportation link for this isolated community, providing essential air access for government services, border security, and the local fishing and agricultural industries. It primarily facilitates domestic flight operations, including private charters and occasional regional services that connect Costa Marques with the state capital, Porto Velho.

The terminal infrastructure at Costa Marques is a basic and functional single-story structure designed to manage the modest regional passenger volume. Inside, travelers will find a unified departures and arrivals hall, which includes basic check-in counters and a sheltered waiting area. Amenities at the airport are focused on the essentials, such as clean restroom facilities and general information signage about the region's unique riverine environment and the nearby historic Forte Príncipe da Beira. Due to its remote location and smaller scale, there are no extensive retail shops or diverse dining options available on-site, so visitors are encouraged to make any necessary food or supply purchases in the town of Costa Marques before their flight.

Operational capacity at Costa Marques Airport is supported by a single paved runway measuring approximately 1,200 meters in length, which is designed to support a wide range of light general aviation aircraft and regional turboprops. Navigation through the terminal is exceptionally easy due to its compact and logical layout. For ground transportation, the airport is located within a few kilometers of the town center and the Guaporé riverfront, with private vehicle transfers and local transport options readily available to transport visitors to their final destination or to the historic fort. Travelers should be mindful of the tropical climate and the airport's proximity to the international border.