Direct (nonstop) flights from Knoxville to Denver
4 airlines fly nonstop from Mc Ghee Tyson (TYS) to Denver International (DEN). It's 1,162 miles (1,870 km), about 3h 20m in the air. Operated by Frontier Airlines, Allegiant Air, United Airlines and others.
Frontier Airlines
Allegiant Air
United Airlines
Southwest Airlines
Route data last updated: May 26, 2026
Airlines with non-stop flights
F9
Frontier Airlines
UA
United Airlines
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Knoxville to Denver with one stop · direct emits 196 kg CO₂ per passenger
Looking for the return flight?
DEN → TYS: Flights from Denver to KnoxvilleOther direct flights from Knoxville
Direct flights from Denver (DEN)
Frequently Asked Questions
How long is the direct flight from Knoxville to Denver?
A nonstop flight from Knoxville (TYS) to Denver (DEN) takes approximately 3 hours and 20 minutes. The distance is 1,162 miles (1,870 km).
Which airlines fly nonstop from Knoxville to Denver?
4 airlines: Frontier Airlines, Allegiant Air, United Airlines, Southwest Airlines.
Is there a nonstop flight from Knoxville to Denver?
Yes. 4 airlines: Frontier Airlines, Allegiant Air, United Airlines, Southwest Airlines.
How far is Knoxville from Denver?
The flight distance from Knoxville to Denver is 1,162 miles (1,870 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What type of aircraft flies from Knoxville to Denver?
At 3h 20m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Knoxville to Denver?
Roughly 196 kg CO2 per passenger one-way. That's about the same as driving 980 km.
Is the return flight from Denver to Knoxville also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Knoxville to Denver?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Mc Ghee Tyson for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.