San Antonio (SAT) to St Louis (STL)
Flight time
≈ 2h 22m
Bearing
34° NE
San Antonio (SAT) to St Louis (STL) is 787 miles (1,266 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies SAT–STL
Filed traffic dataIn July 2026, Southwest Airlines was the only carrier flying nonstop SAT–STL; the Boeing 737 MAX 8 was the most common aircraft at 35% of departures; flights ran 70% full.
Departures
108
July 2026
Seats
17,532
both directions
Passengers
12,204
both directions
Load factor
69.6%
RPM ÷ ASM
Who flies SAT–STL?
Southwest Airlines was the only carrier to fly nonstop SAT–STL in July 2026 (108 departures).
- WN
108 departures · 17,532 seats
Share of departures100.0%69.6%
Load
What plane flies SAT–STL?
In July 2026, the Boeing 737 MAX 8 flew 35% of SAT–STL departures — more than any other aircraft type.
- Boeing 737 MAX 8
38 departures · 68.9% load
35.2% - Boeing 737-700
36 departures · 78.6% load
33.3% - Boeing 737-800
34 departures · 62.9% load
31.5%
How has SAT–STL traffic changed?
Nonstop SAT–STL departures rose from 93 in August 2025 to 108 in July 2026.
Monthly nonstop SAT–STL traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
93 departures · 10,593 passengers
69.9%
Load
September 2025
94 departures · 11,285 passengers
73.9%
Load
October 2025
105 departures · 12,690 passengers
74.9%
Load
November 2025
67 departures · 8,439 passengers
75.0%
Load
December 2025
80 departures · 9,478 passengers
71.8%
Load
January 2026
58 departures · 5,702 passengers
68.0%
Load
February 2026
53 departures · 6,127 passengers
76.8%
Load
March 2026
110 departures · 12,780 passengers
70.7%
Load
April 2026
112 departures · 11,411 passengers
62.8%
Load
May 2026
110 departures · 12,635 passengers
71.0%
Load
June 2026
104 departures · 12,651 passengers
74.7%
Load
July 2026
108 departures · 12,204 passengers
69.6%
Load
By direction
Each direction is filed separately — they rarely match.
SAT → STL
82.7% full
54 departures · 6,997 passengers
STL → SAT
57.4% full
54 departures · 5,207 passengers
Nonstop SAT–STL traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is San Antonio (SAT) from St Louis (STL)?
SAT to STL is 787 miles (1,266 km / 684 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from SAT to STL?
A nonstop covers the 787-mile great-circle distance in roughly 2h 22m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies SAT–STL?
In July 2026, the Boeing 737 MAX 8 flew the largest share of departures (35.2%), followed by the Boeing 737-700 (33.3%).
What mileage do I earn flying SAT–STL?
Distance-based programs credit off the 787-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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