IAH → GSP: cancellations & delays
Over Jan 2023 - Apr 2026, 1.3% of George Bush Intercontinental Airport (IAH) to Greenville-Spartanburg International Airport (GSP) flights were cancelled and 30.6% arrived at least 15 minutes late, across 843 flights, flown by UA, OO. Cancellations peak in July.
Check today's live IAH departures →Airport pages: George Bush Intercontinental Airport (IAH) · Greenville-Spartanburg International Airport (GSP)
Rates are historical averages from U.S. DOT (BTS) on-time records; a specific flight's live estimate can differ with weather and the day's disruptions.