Greer (GSP) to Houston (HOU): On-Time Performance
Data through July 2026
Greer (GSP) to Houston (HOU) is a thinner route than most in this dataset — 173 departures over the past year, roughly 3 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 82% arrived on time.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 1.2%
- Flights/day
- 0.47
- last 12 months
- Duration
- 2h 32m
- scheduled
- Distance
- 845 mi
Monthly on-time trend
Best time to fly from GSP to HOU
Aim for departures around 1 p.m. (97% on-time); avoid 8 p.m. departures (56%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 21 min |
| Tuesday | 85% | 12 min |
| Wednesday | 77% | 10 min |
| Thursday | 79% | 20 min |
| Fridaybest | 88% | 7 min |
| Saturday | 87% | 12 min |
| Sunday | 77% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft75%
- Airline operations18%
- National airspace system5%
- Weather2%
Frequently asked questions
- How often are flights from GSP to HOU delayed?
- 18% of GSP–HOU flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 13 minutes.
- What is the best time of day to fly from GSP to HOU?
- Departures around 1 p.m. have the best record (97% on-time), while departures around 8 p.m. have the worst (56%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from GSP to HOU?
- The scheduled GSP–HOU flight time averages 2h 32m over 845 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are GSP to HOU flights cancelled?
- 1.2% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What day of the week is most reliable for GSP to HOU?
- Friday flights have the best record at 88% on-time. Day-of-week differences on this route are meaningful — Sunday trails at 77%.
Explore related pages
More routes from GSP
Other ways to fly to Houston (HOU)
Related guides
Based on 337 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.