St. LouisPhoenixDirect FlightsSTL–PHX
St. Louis (St. Louis Lambert International Airport) to Phoenix (Phoenix Sky Harbor International Airport).
Flight time from STL to PHX is estimated at about 3h 11m, based on the 1,259-mile great-circle distance. Our current captured departure sample includes 5-6/day across 3 captured airlines, with Southwest Airlines appearing most often in that sample. Captured departure times run from 05:45 to 21:45 local time.
Plan this routeAt a glance
| Est. flight time | Distance | Captured freq. | Type |
|---|---|---|---|
| ~3h 11m Estimated from great-circle distance — no tracked flights yet. | 1,259 mi | 5-6/day From the current provider sample; confirm live timetables before booking. | Domestic |
Airlines on this route
Captured airlines for STL to PHX
Our current provider sample includes 5-6/day from STL to PHX across 3 captured airlines. Captured departure terminal data is available for 2, 1.
- First departure
- 05:45
- Last departure
- 21:45
- Cadence
- ~hourly
- Captured departures/day
- 16
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| Southwest Airlines | 3-4/day | Boeing 737 · Terminal 2 · Seat map | 05:4506:10 |
Aircraft on this route
Flying the other way?
PHX to STL flights — 5-6/day on 2 airlines →Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for STL to PHX, last seen June 15, 2026. Frequency uses 37 scheduled departures across 7 observed days; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.
Route FAQ
How long is the flight from STL to PHX?
The STL to PHX flight time is estimated at about 3h 11m from great-circle distance until enough tracked flights are available.
How far is STL from PHX?
STL to PHX is about 1,259 miles by air.
Which airlines fly from STL to PHX?
Our current provider sample for STL to PHX includes Southwest Airlines, American Airlines, Frontier Airlines. Confirm live timetables before booking.
What aircraft fly from STL to PHX?
Aircraft captured in our current provider sample for STL to PHX include Boeing 737, Boeing 737, Airbus A320 family.