Direct (nonstop) flights from Phoenix to Saint Louis
3 airlines fly nonstop from Phoenix Sky Harbor International (PHX) to Saint Louis Airport (STL). It's 1,260 miles (2,028 km), about 2h 55m in the air. Operated by American Airlines, Frontier Airlines, Southwest Airlines.
American Airlines
Frontier Airlines
Southwest Airlines
Route data last updated: May 28, 2026
Airlines with non-stop flights
AA
American Airlines
F9
Frontier Airlines
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Phoenix to Saint Louis with one stop · direct emits 213 kg CO₂ per passenger
Looking for the return flight?
STL → PHX: Flights from Saint Louis to PhoenixOther direct flights from Phoenix
Direct flights from Saint Louis (STL)
Frequently Asked Questions
How long is the direct flight from Phoenix to Saint Louis?
A nonstop flight from Phoenix (PHX) to Saint Louis (STL) takes approximately 2 hours and 55 minutes. The distance is 1,260 miles (2,028 km).
Which airlines fly nonstop from Phoenix to Saint Louis?
3 airlines: American Airlines, Frontier Airlines, Southwest Airlines.
Is there a nonstop flight from Phoenix to Saint Louis?
Yes. 3 airlines: American Airlines, Frontier Airlines, Southwest Airlines.
How far is Phoenix from Saint Louis?
The flight distance from Phoenix to Saint Louis is 1,260 miles (2,028 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 Phoenix to Saint Louis?
At 2h 55m, 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 Saint Louis?
Roughly 213 kg CO2 per passenger one-way. That's about the same as driving 1,065 km.
Is the return flight from Saint Louis 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 Saint Louis?
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.