Chachoan Airport (Spanish: Aeropuerto Chachoan) (IATA: ATF, ICAO: SEAM) is a high elevation airport serving Ambato (also known as San Juan de Ambato), capital of the Tungurahua Province in Ecuador.

The Ambato VOR-DME (Ident: AMV) is located on a ridge 4.7 nautical miles (8.7 km) south-southeast of the airport.

[4][5] On October 28, 1997, An Aerogal Fairchild FH-227D, with registration HC-BUF, was operating a repositioning ferry flight with staff and equipment from Quito's Mariscal Sucre International Airport to Chachoan.

Due to the pilots' and the airline's poor-to-none flight preparation to fly into this high-elevation airfield, the plane touched down halfway down the runway at high speed (at 100 knots).

[6] This particular airframe (cn.573 formerly N2784R) had been briefly used in 1992 for photoshoot purposes for the 1993 movie Alive, painted in the livery of the ill-fated Uruguayan Air Force 571.