Phoenix (PHX) to St Louis (STL)
Flight time
≈ 3h 19m
Bearing
67° NE
Phoenix (PHX) to St Louis (STL) is 1,259 miles (2,026 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies PHX–STL
US DOT T-100 · filed dataIn April 2026, Southwest Airlines operated the most departures, one of 5 carriers flying nonstop PHX–STL; the Boeing 737 MAX 8 was the most common aircraft at 40% of departures; flights ran 79% full.
Departures
415
April 2026
Seats
64,103
both directions
Passengers
50,489
both directions
Load factor
78.8%
passengers ÷ seats
Who flies PHX–STL?
Southwest Airlines operated the most nonstop PHX–STL departures in April 2026 (291), one of 5 carriers on the route.
- WN
Southwest Airlines
291 departures · 49,671 seats
Share of departures70.1%77.9%
Load
- AA
American Airlines
72 departures · 9,916 seats
Share of departures17.3%84.7%
Load
- MQ
Envoy Air
47 departures · 3,572 seats
Share of departures11.3%82.8%
Load
- F9
Frontier Airlines
4 departures · 744 seats
Share of departures1.0%45.7%
Load
- UA
United Airlines
1 departures · 200 seats
Share of departures0.2%43.0%
Load
What plane flies PHX–STL?
In April 2026, the Boeing 737 MAX 8 flew 40% of PHX–STL departures — more than any other aircraft type.
- Boeing 737 MAX 8
167 departures · 76.6% load
40.2% - Boeing 737-800
91 departures · 77.0% load
21.9% - Embraer E175
47 departures · 82.8% load
11.3% - Airbus A319
42 departures · 89.0% load
10.1% - Boeing 737-700
33 departures · 89.8% load
8.0% - Airbus A320
29 departures · 79.1% load
7.0% - Airbus A320neo
4 departures · 45.7% load
1.0% - Airbus A321
1 departures · 88.4% load
0.2% - Airbus A321neo
1 departures · 43.0% load
0.2%
How has PHX–STL traffic changed?
Nonstop PHX–STL departures rose from 414 in May 2025 to 415 in April 2026.
Monthly nonstop PHX–STL traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
414 departures · 49,161 passengers
78.2%
Load
June 2025
341 departures · 40,546 passengers
79.1%
Load
July 2025
331 departures · 39,222 passengers
78.8%
Load
August 2025
330 departures · 39,828 passengers
74.3%
Load
September 2025
315 departures · 40,761 passengers
81.3%
Load
October 2025
400 departures · 52,627 passengers
78.6%
Load
November 2025
374 departures · 49,394 passengers
81.6%
Load
December 2025
415 departures · 54,582 passengers
82.0%
Load
January 2026
393 departures · 50,333 passengers
77.9%
Load
February 2026
385 departures · 48,348 passengers
76.6%
Load
March 2026
470 departures · 63,115 passengers
81.5%
Load
April 2026
415 departures · 50,489 passengers
78.8%
Load
By direction
The DOT files each direction separately — they rarely match.
STL → PHX
78.9% full
208 departures · 25,332 passengers
PHX → STL
78.6% full
207 departures · 25,157 passengers
Nonstop PHX–STL traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Phoenix (PHX) from St Louis (STL)?
PHX to STL is 1,259 miles (2,026 km / 1,094 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from PHX to STL?
A nonstop covers the 1,259-mile great-circle distance in roughly 3h 19m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies PHX–STL?
In April 2026, the Boeing 737 MAX 8 flew the largest share of departures (40.2%), followed by the Boeing 737-800 (21.9%).
What mileage do I earn flying PHX–STL?
Distance-based programs credit off the 1,259-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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