George Bush Intercontinental Airport
Houston, United StatesIAH / KIAH
International hub · 159 direct destinations · 5 runways · longest runway 12,001 ft
64 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Houston → Greenville
IAH
HoustonGeorge Bush Intercontinental Airport
HoustonGeorge Bush Intercontinental AirportGSPGreenvilleGreenville-Spartanburg International Airport
GreenvilleGreenville-Spartanburg International Airport- Distance
- 836 mi
- Estimated flight time
- ~2h 10m
Greenville is currently 1 hour ahead of Houston.
Observed nonstop
How often does this route fly?
Frequency
A couple of times a day
On average around 2 flights a day, observed from October 2025 to September 2026.
- 2
- flights per day
- 2
- busiest month · Oct
- 1 hr 51 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 2Jan2026
- 2Feb
- 2Mar
- 2Apr
- 2May
- 2Jun
- 2Jul
- 2Aug
- 2Sep
- 2Oct2025
- 2Nov
- 2Dec
Airlines
Who flies it
Mesa Airlinesall year
SkyWest Airlineswinter
Through the day
Departure times
Local time in Houston. Most departures between 12:00 and 15:00.
- 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
- 1.7Mon
- 1.8Tue
- 1.6Wed
- 1.7Thu
- 1.8Fri
- 1.6Sat
- 1.4Sun
Fleet
Aircraft observed
- Embraer 175E75L100%
- E45X0%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 2 | 41 |
|
| February 2026 | 2 | 42 |
|
| March 2026 | 2 | 52 |
|
| April 2026 | 2 | 50 |
|
| May 2026 | 2 | 52 |
|
| June 2026 | 2 | 52 |
|
| July 2026 | 2 | 57 |
|
| August 2026 | 2 | 49 |
|
| September 2026 | 2 | 41 |
|
| October 2025 | 2 | 59 |
|
| November 2025 | 2 | 54 |
|
| December 2025 | 2 | 45 |
|
Airlines observed on this route
From observed callsign routes on IAH-GSP - 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 Greenville: 49.
The airports on this route
Greenville-Spartanburg International Airport
Greenville, United StatesGSP / KGSP
Regional airport · 49 direct destinations · 1 runway · longest runway 11,001 ft
70 °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 Greenville
The observed direct connection between George Bush Intercontinental Airport (IAH) and Greenville-Spartanburg International Airport (GSP) covers approximately 836 mi. The estimated flight time is around 2h 10m. Mesa Airlines and SkyWest Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Houston from Greenville by air?
- The great-circle distance between George Bush Intercontinental Airport and Greenville-Spartanburg International Airport is approximately 836 mi.
- How long is the flight from Houston to Greenville?
- Based on the distance, the estimated flight time is about 2h 10m. This is an estimate, not a schedule.
- Is there a direct connection from Houston to Greenville?
- Yes, a direct connection between IAH and GSP has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Mesa Airlines and SkyWest Airlines.
- How often is there a flight from Houston to Greenville?
- On average around 2 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 594 observed flights. Mainly Mesa Airlines, SkyWest Airlines. That is an observation, not a timetable.
- What is the current time difference between Houston and Greenville?
- Greenville is currently 1 hour ahead of Houston.
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.