The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Greenville Spartanburg International ⇄ William P Hobby GSP–HOU

Airlines flew 343 flights between Greenville Spartanburg International GSP in Greer, SC and William P Hobby HOU in Houston, TX in the twelve months to July 2026, both directions together: 37,351 passengers in 51,851 seats, 72% of them filled, and 35,985 pounds of freight. 845 miles, about 127 minutes in the air, on 3 airlines: Southwest Airlines Co. (341), Global Crossing Airlines, Inc. (1), CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle (1). Planning to fly it yourself? The weather and winds along this route right now.

343
flights, twelve months
GSP-HOU: 170 · HOU-GSP: 173
37,351
passengers
72% of seats filled
845
miles
about 127 minutes airborne
3
airlines
5 aircraft types

Flights by month both directions

0163146621/254/257/2510/251/2663/26
By month, as a table
flights
1/252
2/254
3/2510
4/2548
5/2562
6/2560
7/2562
8/2552
9/2552
10/2562
11/2555
12/2562
1/2618
2/2636
3/266

Passengers by month

01,9303,8605,7907,7201/254/257/2510/251/265733/26
By month, as a table
passengers
1/25307
2/25208
3/251,097
4/255,365
5/257,720
6/256,413
7/256,266
8/255,077
9/255,454
10/257,335
11/256,194
12/257,220
1/262,112
2/263,386
3/26573

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Southwest Airlines Co. WN34137,32472%scheduled passenger service
Global Crossing Airlines, Inc. GCA100%charter passenger service
CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle LF12790%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 737-700/700LR/Max 724614225,553
Boeing 737-800531756,413
Boeing B737 Max 800421755,358
Bombardier Challenger 604/60513027
Airbus Industrie A320-100/20011500

GSP → HOU this direction alone · flown January 2025 to March 2026

170 flights of 173 scheduled, 17,402 passengers in 25,378 seats, 16,895 pounds of freight. Southwest Airlines Co. 170.

HOU → GSP this direction alone · flown January 2025 to March 2026

173 flights of 173 scheduled, 19,949 passengers in 26,473 seats, 19,090 pounds of freight. Southwest Airlines Co. 171; Global Crossing Airlines, Inc. 1; CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle 1.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Greenville Spartanburg International GSP and William P Hobby HOU; all routes.