Greer→HoustonNonstop Flight TimeGSP–IAH

Greer (Greenville Spartanburg International Airport) to Houston (George Bush Intercontinental Airport).

Direct flights from GSP to IAH have an estimated flight time of about 2h 19m, based on the 836-mile great-circle distance. Our current captured departure sample includes 2-3/day across 1 captured airline, with United Airlines appearing most often in that sample. Captured departure times run from 07:00 to 17:10 local time.

Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for GSP to IAH, last seen June 15, 2026. Frequency uses 15 scheduled departures across 7 observed days; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.