The Phoenix to St Louis route connects Phoenix Sky Harbor International Airport (PHX) in US with St. Louis Lambert International Airport (STL) in US. This medium-haul flight covers approximately 1281 miles (2062 km) with a typical flight time of 2h 33m. This route is served by 4 airlines: Southwest, American Airlines, Frontier and others. AirportRoutes has tracked 13 unique flight numbers on this route.
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Phoenix Sky Harbor International Airport
KPHXPHXSt. Louis Lambert International Airport
KSTLSTL4
Operators13
Tracked Flights1281
Miles2h 33m
Flight Duration| Airline | ICAO | IATA |
|---|---|---|
| Southwest |
SWA
|
WN
|
| American Airlines |
AAL
|
AA
|
| Frontier |
FFT
|
F9
|
| Envoy Air |
ENY
|
MQ
|
| Day | Flights Observed | Frequency | Activity |
|---|---|---|---|
| Monday | 15 | 18% |
|
| Tuesday | 7 | 9% |
|
| Wednesday | 13 | 16% |
|
| Thursday | 13 | 16% |
|
| Friday | 14 | 17% |
|
| Saturday | 6 | 7% |
|
| Sunday | 14 | 17% |
|
Pattern Analysis
| Airline | Flight Numbers | Aircraft Type | Typical Time | Days Active | Last Seen | Status |
|---|---|---|---|---|---|---|
|
Envoy Air
ENY
/ MQ
|
- | - | - |
M
T
W
T
F
S
S
|
Jun 9, 2026 | Active |
|
American Airlines
AAL
/ AA
|
A319 | 19:56 7:56 PM (Representative) |
M
T
W
T
F
S
S
|
Jun 9, 2026 | Active | |
|
Frontier
FFT
/ F9
|
A20N | 17:09 5:09 PM (Representative) |
M
T
W
T
F
S
S
|
Jun 9, 2026 | Active | |
|
Southwest
SWA
/ WN
|
|
B38M | 05:35 5:35 AM (Representative) |
M
T
W
T
F
S
S
|
Jun 9, 2026 | Active |
| Departure Time | Operator | ICAO | IATA |
|---|---|---|---|
| 05:35 5:35 AM | Southwest |
SWA
|
WN
|
| 17:09 5:09 PM | Frontier |
FFT
|
F9
|
| 19:56 7:56 PM | American Airlines |
AAL
|
AA
|
Time Information
Times are shown in the departure airport's local timezone (KPHX - America/Phoenix).