Direct (nonstop) flights from Phoenix to Knoxville
1 airline flys nonstop from Phoenix Sky Harbor International (PHX) to Mc Ghee Tyson (TYS). It's 1,599 miles (2,573 km), about 3h 27m in the air. Operated by Allegiant Air.
Allegiant Air
Route data last updated: May 31, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Phoenix to Knoxville with one stop · direct emits 270 kg CO₂ per passenger
Looking for the return flight?
TYS → PHX: Flights from Knoxville to PhoenixOther direct flights from Phoenix
Direct flights from Knoxville (TYS)
Frequently Asked Questions
How long is the direct flight from Phoenix to Knoxville?
A nonstop flight from Phoenix (PHX) to Knoxville (TYS) takes approximately 3 hours and 27 minutes. The distance is 1,599 miles (2,573 km).
Which airlines fly nonstop from Phoenix to Knoxville?
Just Allegiant Air.
Is there a nonstop flight from Phoenix to Knoxville?
Yes. 1 airline: Allegiant Air.
How far is Phoenix from Knoxville?
The flight distance from Phoenix to Knoxville is 1,599 miles (2,573 km), measured as the great-circle (shortest air) distance.
What type of aircraft flies from Phoenix to Knoxville?
At 3h 27m, 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 Phoenix to Knoxville?
Roughly 270 kg CO2 per passenger one-way. That's about the same as driving 1,350 km.
Is the return flight from Knoxville to Phoenix 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 Phoenix to Knoxville?
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 Phoenix Sky Harbor International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.