Frontier Airlines, United Airlines, Allegiant Air and Southwest Airlines operate nonstop flights from Denver (DEN) to Knoxville/Maryville (TYS). The nonstop flight takes around ~2h 20m, covering 1,159 miles (1,866 km) and operates daily. Updated 28 June 2026.
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Yes, Frontier Airlines, United Airlines and 2 more airlines operate nonstop flights from Denver (DEN) to Knoxville/Maryville (TYS).
Frontier Airlines, United Airlines, Allegiant Air, Southwest Airlines operate nonstop flights from Denver to Knoxville/Maryville.
The nonstop flight from Denver to Knoxville/Maryville takes ~2h 20m (approximately 1866 km).
Nonstop flights from Denver to Knoxville/Maryville operate daily.