Greenville/Greer/Spartanburg (GSP) to Houston (HOU)
Flight time
≈ 2h 29m
Bearing
248° W
Greenville/Greer/Spartanburg (GSP) to Houston (HOU) is 844 miles (1,358 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies GSP–HOU
Filed traffic dataIn March 2026, Southwest Airlines operated the most departures, one of 3 carriers flying nonstop GSP–HOU; the Boeing 737-700 was the most common aircraft at 33% of departures; flights ran 71% full.
Departures
6
March 2026
Seats
804
both directions
Passengers
573
both directions
Load factor
71.3%
RPM ÷ ASM
Who flies GSP–HOU?
Southwest Airlines operated the most nonstop GSP–HOU departures in March 2026 (4), one of 3 carriers on the route.
- WN
4 departures · 624 seats
Share of departures66.7%87.5%
Load
- GCA
1 departures · 150 seats
Share of departures16.7%0.0%
Load
- LF
Contour Airlines
1 departures · 30 seats
Share of departures16.7%90.0%
Load
What plane flies GSP–HOU?
In March 2026, the Boeing 737-700 flew 33% of GSP–HOU departures — more than any other aircraft type.
- Boeing 737-700
2 departures · 93.4% load
33.3% - Boeing 737-800
2 departures · 82.9% load
33.3% - Bombardier Challenger 604
1 departures · 90.0% load
16.7% - Airbus A320
1 departures · 0.0% load
16.7%
How has GSP–HOU traffic changed?
Nonstop GSP–HOU departures fell from 60 in June 2025 to 6 in March 2026.
Monthly nonstop GSP–HOU traffic, trailing 12 months through March 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
60 departures · 6,413 passengers
69.3%
Load
July 2025
62 departures · 6,266 passengers
65.3%
Load
August 2025
52 departures · 5,077 passengers
65.2%
Load
September 2025
52 departures · 5,454 passengers
70.6%
Load
October 2025
62 departures · 7,335 passengers
79.6%
Load
November 2025
55 departures · 6,194 passengers
76.3%
Load
December 2025
62 departures · 7,220 passengers
74.7%
Load
January 2026
18 departures · 2,112 passengers
73.4%
Load
February 2026
36 departures · 3,386 passengers
59.9%
Load
March 2026
6 departures · 573 passengers
71.3%
Load
By direction
Each direction is filed separately — they rarely match.
HOU → GSP
64.2% full
4 departures · 316 passengers
GSP → HOU
82.4% full
2 departures · 257 passengers
Nonstop GSP–HOU traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through March 2026; filings from 2025. Public domain (US Government work).
The airports
Greenville/Greer/Spartanburg
US
Greenville-Spartanburg International Airport
Coordinates
34.90°N, 82.22°W
Hemisphere
N · W
Frequently asked
How far is Greenville/Greer/Spartanburg (GSP) from Houston (HOU)?
GSP to HOU is 844 miles (1,358 km / 733 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from GSP to HOU?
A nonstop covers the 844-mile great-circle distance in roughly 2h 29m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies GSP–HOU?
In March 2026, the Boeing 737-700 flew the largest share of departures (33.3%), followed by the Boeing 737-800 (33.3%).
What mileage do I earn flying GSP–HOU?
Distance-based programs credit off the 844-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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