Houston (HOU) to Greenville/Greer/Spartanburg (GSP) flights
There were no regular nonstop flights from HOU to GSP in July 2026; the route was flown 171 times in the previous 12 months. The 845-mile flight takes about 2h 4m gate to gate.
- Distance
- 845 mi · 1,360 km
- Flight time
- 2h 4m
- Airlines
- 1
- Seats filled
- 76%
Airlines flying HOU to GSP
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest AirlinesSeasonal or ended | n/a | Boeing 737-700 / MAX 7, Boeing 737-800, Boeing 737 MAX 8 | 19,922 | 2h 4m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
Is HOU to GSP on time?
From September 2025 to August 2026, 90% of 147 flights arrived within 15 minutes of schedule and 1.4% were cancelled. Flights leaving around 10am were the most punctual (97%), those around 12pm the least (81%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (56%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 147 | 90% | 5 min | 1.4% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 10am to 11am | 38 | 97% | |
| 11am to 12pm | 51 | 94% | |
| 12pm to 1pm | 38 | 81% | |
| 3pm to 4pm | 14 | 85% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 26 | 2,864 | |
| September 2025 | 26 | 3,090 | |
| October 2025 | 31 | 4,034 | |
| November 2025 | 28 | 3,173 | |
| December 2025 | 31 | 3,480 | |
| January 2026 | 9 | 1,098 | |
| February 2026 | 18 | 1,894 | |
| March 2026 | 2 | 289 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.