Direct (nonstop) flights from Phoenix to Denver
4 airlines fly nonstop from Phoenix Sky Harbor International (PHX) to Denver International (DEN). It's 600 miles (966 km), about 1h 50m in the air. Operated by American Airlines, Frontier Airlines, United Airlines and others.
American Airlines
Frontier Airlines
United Airlines
Southwest Airlines
Route data last updated: May 26, 2026
Airlines with non-stop flights
AA
American Airlines
F9
Frontier Airlines
UA
United Airlines
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Phoenix to Denver with one stop · direct emits 111 kg CO₂ per passenger
Looking for the return flight?
DEN → PHX: Flights from Denver to PhoenixOther direct flights from Phoenix
Direct flights from Denver (DEN)
Frequently Asked Questions
How long is the direct flight from Phoenix to Denver?
A nonstop flight from Phoenix (PHX) to Denver (DEN) takes approximately 1 hours and 50 minutes. The distance is 600 miles (966 km).
Which airlines fly nonstop from Phoenix to Denver?
4 airlines: American Airlines, Frontier Airlines, United Airlines, Southwest Airlines.
Is there a nonstop flight from Phoenix to Denver?
Yes. 4 airlines: American Airlines, Frontier Airlines, United Airlines, Southwest Airlines.
How far is Phoenix from Denver?
The flight distance from Phoenix to Denver is 600 miles (966 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as the length of Italy.
What type of aircraft flies from Phoenix to Denver?
At 1h 50m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Phoenix to Denver?
Roughly 111 kg CO2 per passenger one-way. That's about the same as driving 555 km.
Is the return flight from Denver 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 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 Phoenix Sky Harbor International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.