Routes · From IAH

Houston (IAH) to Greenville/Greer/Spartanburg (GSP) flights

Nonstop from George Bush Intercontinental to Greenville-Spartanburg International Airport: distance, flying time, which airlines fly it and how often.

Distance

1,346km

836 mi, great circle

Flying time

2h 26m

typical, gate to gate

Flights a day

2.4

average, November 2026

Airlines

passenger airlines

Airlines flying IAH to GSP

United Airlines

Also in the data (cargo, charter or a foreign airline on a domestic route): Mesa Airlines.

Route map

The shortest path over the Earth's surface. Actual tracks vary with winds and airspace. Map © OpenStreetMap contributors.

Cheapest recent fare

Fares found in recent searches load here. You can also compare IAH to GSP fares by month.

Both directions

Greenville-Spartanburg International Airport (GSP) · we don't have GSP's route list yet
All nonstop routes from Houston (IAH)
IAH to GSP on the flight-path tool

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Frequently asked questions

How long is the flight from Houston to Greenville/Greer/Spartanburg?

About 2h 26m gate to gate for the 1,346 km (836 mile) trip, estimated from distance. Schedules vary by airline and season, and winds can add or save time.

Which airlines fly nonstop from IAH to GSP?

United Airlines, with about 2.4 flights a day between them in our data (AeroDataBox, November 2026).