Houston (HOU) to San Antonio (SAT)
Flight time
≈ 1h 11m
Bearing
268° W
Houston (HOU) to San Antonio (SAT) is 192 miles (309 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies HOU–SAT
US DOT T-100 · filed dataIn April 2026, Southwest Airlines operated the most departures, one of 3 carriers flying nonstop HOU–SAT; the Boeing 737-700 was the most common aircraft at 67% of departures; flights ran 68% full.
Departures
201
April 2026
Seats
29,850
both directions
Passengers
20,196
both directions
Load factor
67.7%
passengers ÷ seats
Who flies HOU–SAT?
Southwest Airlines operated the most nonstop HOU–SAT departures in April 2026 (198), one of 3 carriers on the route.
- WN
Southwest Airlines
198 departures · 29,520 seats
Share of departures98.5%68.2%
Load
- DL
Delta Air Lines
2 departures · 144 seats
Share of departures1.0%38.9%
Load
- SY
Sun Country Airlines
1 departures · 186 seats
Share of departures0.5%0.0%
Load
What plane flies HOU–SAT?
In April 2026, the Boeing 737-700 flew 67% of HOU–SAT departures — more than any other aircraft type.
- Boeing 737-700
135 departures · 71.5% load
67.2% - Boeing 737-800
32 departures · 60.7% load
15.9% - Boeing 737 MAX 8
32 departures · 62.9% load
15.9% - Boeing 757-200
2 departures · 38.9% load
1.0%
How has HOU–SAT traffic changed?
Nonstop HOU–SAT departures fell from 265 in May 2025 to 201 in April 2026.
Monthly nonstop HOU–SAT traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
265 departures · 26,434 passengers
61.3%
Load
June 2025
265 departures · 27,307 passengers
64.3%
Load
July 2025
266 departures · 27,765 passengers
65.3%
Load
August 2025
293 departures · 28,231 passengers
60.4%
Load
September 2025
285 departures · 29,190 passengers
64.0%
Load
October 2025
285 departures · 30,259 passengers
70.5%
Load
November 2025
246 departures · 20,813 passengers
55.8%
Load
December 2025
247 departures · 24,360 passengers
64.0%
Load
January 2026
199 departures · 18,858 passengers
63.1%
Load
February 2026
174 departures · 17,357 passengers
64.6%
Load
March 2026
206 departures · 21,092 passengers
68.9%
Load
April 2026
201 departures · 20,196 passengers
67.7%
Load
By direction
The DOT files each direction separately — they rarely match.
SAT → HOU
63.2% full
101 departures · 9,540 passengers
HOU → SAT
72.2% full
100 departures · 10,656 passengers
Nonstop HOU–SAT 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 Houston (HOU) from San Antonio (SAT)?
HOU to SAT is 192 miles (309 km / 167 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from HOU to SAT?
A nonstop covers the 192-mile great-circle distance in roughly 1h 11m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies HOU–SAT?
In April 2026, the Boeing 737-700 flew the largest share of departures (67.2%), followed by the Boeing 737-800 (15.9%).
What mileage do I earn flying HOU–SAT?
Distance-based programs credit off the 192-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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