Austin (AUS) to St Louis (STL)
Flight time
≈ 2h 15m
Bearing
33° NE
Austin (AUS) to St Louis (STL) is 722 miles (1,161 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies AUS–STL
Filed traffic dataIn May 2026, Southwest Airlines operated the most departures, one of 2 carriers flying nonstop AUS–STL; the Boeing 737-800 was the most common aircraft at 44% of departures; flights ran 78% full.
Departures
186
May 2026
Seats
31,508
both directions
Passengers
24,424
both directions
Load factor
77.5%
RPM ÷ ASM
Who flies AUS–STL?
Southwest Airlines operated the most nonstop AUS–STL departures in May 2026 (184), one of 2 carriers on the route.
- WN
184 departures · 31,136 seats
Share of departures98.9%78.2%
Load
- SY
2 departures · 372 seats
Share of departures1.1%21.5%
Load
What plane flies AUS–STL?
In May 2026, the Boeing 737-800 flew 44% of AUS–STL departures — more than any other aircraft type.
- Boeing 737-800
81 departures · 71.9% load
43.5% - Boeing 737 MAX 8
77 departures · 81.5% load
41.4% - Boeing 737-700
28 departures · 84.4% load
15.0%
How has AUS–STL traffic changed?
Nonstop AUS–STL departures rose from 181 in June 2025 to 186 in May 2026.
Monthly nonstop AUS–STL traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
181 departures · 19,913 passengers
69.6%
Load
July 2025
186 departures · 21,194 passengers
69.8%
Load
August 2025
153 departures · 18,849 passengers
73.8%
Load
September 2025
146 departures · 18,378 passengers
75.5%
Load
October 2025
169 departures · 21,155 passengers
76.3%
Load
November 2025
171 departures · 20,636 passengers
73.1%
Load
December 2025
182 departures · 21,236 passengers
71.1%
Load
January 2026
124 departures · 12,575 passengers
61.7%
Load
February 2026
119 departures · 12,590 passengers
63.8%
Load
March 2026
173 departures · 20,700 passengers
73.9%
Load
April 2026
179 departures · 20,958 passengers
69.7%
Load
May 2026
186 departures · 24,424 passengers
77.5%
Load
By direction
Each direction is filed separately — they rarely match.
AUS → STL
81.0% full
94 departures · 12,843 passengers
STL → AUS
74.0% full
92 departures · 11,581 passengers
Nonstop AUS–STL traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Austin (AUS) from St Louis (STL)?
AUS to STL is 722 miles (1,161 km / 627 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from AUS to STL?
A nonstop covers the 722-mile great-circle distance in roughly 2h 15m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies AUS–STL?
In May 2026, the Boeing 737-800 flew the largest share of departures (43.5%), followed by the Boeing 737 MAX 8 (41.4%).
What mileage do I earn flying AUS–STL?
Distance-based programs credit off the 722-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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