Bayannur Tianjitai Airport (Bayannur Tianjitai Airport; IATA: RLK; ICAO: ZBYZ), located in Tianjitai Town, Wuyuan County, Bayannur City, Inner Mongolia Autonomous Region, 33 kilometers away from the center of Linhe District, is a 4C-level China Domestic Regional Airport   .
On January 26, 2010, the construction of Bayannaoer Tianjitai Airport started; on September 6, 2011, the school flight of Bayannaoer Tianjitai Airport was successful; on November 1, 2011, the test flight of Bayannaoer Tianjitai Airport Success; on December 30, 2011, Bayannaoer Tianjitai Airport was officially opened to navigation   .
As of November 2011, the terminal area of ​​Bayannaoer Tianjitai Airport is 7076 square meters, the station area is 18900 square meters, 6 stations, 3 of which are C-class seats, 2 boarding bridges; the runway is 2600 square meters long meters and 45 meters wide; it can meet the needs of annual passenger throughput of 230,000 passengers and cargo throughput of 810 tons   .
In 2019, Bayannur Tianjitai Airport handled a total of 428,865 passengers, a year-on-year increase of 21.6%, ranking 155th in the country; cargo and mail throughput was 807.8 tons, a year-on-year increase of 13.1%, ranking 132th in the country; sorties, a year-on-year increase of 26.7%, ranking 163 in the country   .