Direct flights from Knoxville to Denver

  • ~5 flights a day
  • 4 airlines

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When the nonstops leave

Typical weekly schedule · 35 flights per week (~5 per day) · Updated 128d ago

Most leave in the afternoon.

Morning before noon 8 a week
7:00 AMSun
8:48 AM
Afternoon noon – 6 PM 24 a week
12:20 PMSat 2:40 PMSun 4:20 PM 4:40 PMSun
4:20 PM 4:56 PM
Evening after 6 PM 3 a week
8:32 PMMon, Wed, Fri
Frontier Airlines
Allegiant Air
United Airlines
Southwest Airlines

More nonstops from Knoxville

TYS → BWI Baltimore DEN → TYS The return trip TYS All nonstops from Knoxville DEN All nonstops from Denver

Frequently asked questions

Is there a direct flight from Knoxville to Denver?

Yes. Allegiant Air, Frontier Airlines, Southwest Airlines and United Airlines fly nonstop from Knoxville (TYS) to Denver (DEN), several times daily. The flight takes about 2h 54m and covers 1,159 miles (1,866 km). Schedule data from 13 June 2026.

Which airlines fly direct from Knoxville to Denver?

Allegiant Air, Frontier Airlines, Southwest Airlines, United Airlines operate nonstop flights from Knoxville to Denver.

How long is the flight from Knoxville to Denver?

The nonstop flight from Knoxville to Denver takes ~2h 54m (approximately 1866 km).

How often do direct flights operate from Knoxville to Denver?

Nonstop flights from Knoxville to Denver operate several times daily — 35 flights per week (~5 per day).

What days of the week are there direct flights from Knoxville to Denver?

Direct flights from Knoxville to Denver operate every day of the week. Frontier Airlines flies Monday, Wednesday, and Friday, Allegiant Air flies Sunday, United Airlines flies daily, and Southwest Airlines flies daily.