George Bush Intercontinental Airport
Houston, United StatesIAH / KIAH
International hub · 159 direct destinations · 5 runways · longest runway 12,001 ft
72 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Houston → San Antonio
IAH
HoustonGeorge Bush Intercontinental Airport
HoustonGeorge Bush Intercontinental AirportSATSan AntonioSan Antonio International Airport
San AntonioSan Antonio International Airport- Distance
- 190 mi
- Estimated flight time
- ~55m
Same local time in Houston and San Antonio.
Observed nonstop
How often does this route fly?
Frequency
Several times a day
On average around 9 flights a day, observed from October 2025 to September 2026.
- 9
- flights per day
- 9
- busiest month · Oct
- 8
- quietest month · Dec
- 37 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 9Jan2026
- 9Feb
- 9Mar
- 9Apr
- 9May
- 9Jun
- 9Jul
- 8Aug
- 8Sep
- 9Oct2025
- 8.5Nov
- 8Dec
Airlines
Who flies it
United Airlinesall year
Mesa Airlinesall year
ABX Airall year
SkyWest Airlinesspring
UPS Airlinesspring
Delta Air Linesnow and then
Through the day
Departure times
Local time in Houston. Most departures between 20:00 and 23:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 8.8Mon
- 8.6Tue
- 8.5Wed
- 8.7Thu
- 8.9Fri
- 8.5Sat
- 7.8Sun
Fleet
Aircraft observed
- Embraer 175E75L21%
- Boeing 737-700B73713%
- Airbus A319A31913%
- Airbus A320A32011%
- Boeing 737-900B73910%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 9 | 250 |
|
| February 2026 | 9 | 254 |
|
| March 2026 | 9 | 276 |
|
| April 2026 | 9 | 254 |
|
| May 2026 | 9 | 256 |
|
| June 2026 | 9 | 260 |
|
| July 2026 | 9 | 280 |
|
| August 2026 | 8 | 240 |
|
| September 2026 | 8 | 245 |
|
| October 2025 | 9 | 272 |
|
| November 2025 | 8.5 | 249 |
|
| December 2025 | 8 | 240 |
|
Airlines observed on this route
From observed callsign routes on IAH-SAT - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Houston: 159.
- Direct destinations observed from San Antonio: 68.
The airports on this route
San Antonio International Airport
San Antonio, United StatesSAT / KSAT
Major airport · 68 direct destinations · 3 runways · longest runway 8,504 ft
64 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
About the route from Houston to San Antonio
The observed direct connection between George Bush Intercontinental Airport (IAH) and San Antonio International Airport (SAT) covers approximately 190 mi. The estimated flight time is around 55m. ABX Air, Delta Air Lines, Mesa Airlines, SkyWest Airlines, United Airlines and UPS Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Houston from San Antonio by air?
- The great-circle distance between George Bush Intercontinental Airport and San Antonio International Airport is approximately 190 mi.
- How long is the flight from Houston to San Antonio?
- Based on the distance, the estimated flight time is about 55m. This is an estimate, not a schedule.
- Is there a direct connection from Houston to San Antonio?
- Yes, a direct connection between IAH and SAT has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: ABX Air, Delta Air Lines, Mesa Airlines, SkyWest Airlines, United Airlines and UPS Airlines.
- How often is there a flight from Houston to San Antonio?
- On average around 9 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 3,076 observed flights. Mainly United Airlines, Mesa Airlines, ABX Air. That is an observation, not a timetable.
- What is the current time difference between Houston and San Antonio?
- Same local time in Houston and San Antonio.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.