All airlines flying from Houston George Bush (IAH) to Greenville/Spartanburg (GSP).
FLIGHT SCHEDULE
Direct Flights:
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:18, non-stop
Boeing 737-700 (73G)
Boeing 737-700 (73G)
Direct Flights:
Effective 2026-05-23 through 2026-06-20
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 2:18, non-stop
Boeing 737-700 (73G)
Boeing 737-700 (73G)
Direct Flights:
Effective 2026-06-27 through 2026-08-08
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 2:18, non-stop
Boeing 737-700 (73G)
Boeing 737-700 (73G)
Direct Flights:
Effective from 2026-10-25
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
Duration: 2:18, non-stop
Boeing 737-700 (73G)
Boeing 737-700 (73G)
Direct Flights:
Effective 2026-05-21 through 2026-08-14
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:18, non-stop
Boeing 737-700 (73G)
Boeing 737-700 (73G)
Direct Flights:
Effective 2026-08-15 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:18, non-stop
Boeing 737-700 (73G)
Boeing 737-700 (73G)
Direct Flights:
Effective from 2026-10-26
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 2:18, non-stop
Boeing 737-700 (73G)
Boeing 737-700 (73G)
Direct Flights:
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:20, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
Effective 2026-03-05 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:15, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:16, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:23, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
Effective 2026-02-12 through 2026-03-02
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
Sun
Duration: 2:24, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
Effective 2026-01-07 through 2026-01-16
Mon
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:20, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
Effective 2026-01-19 through 2026-02-11
Mon
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:20, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:23, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:25, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:25, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2208)
Duration: 2:18, non-stop Boeing 737-700 (73G)
Direct Codeshare Flights:
Effective 2026-02-12 through 2026-03-02
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4075)
Duration: 2:24, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 6127)
Duration: 2:23, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 6127)
Duration: 2:25, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5477)
Duration: 2:20, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-01-07 through 2026-01-16
Mon
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 4075)
Duration: 2:20, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-01-19 through 2026-02-11
Mon
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 4075)
Duration: 2:20, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 6127)
Duration: 2:25, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1586)
Duration: 2:18, non-stop Boeing 737-700 (73G)
Direct Codeshare Flights:
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 6158)
Duration: 2:20, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 6158)
Duration: 2:20, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 4036)
Duration: 2:16, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-03-05 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 4035)
Duration: 2:15, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4043)
Duration: 2:23, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 4031)
Duration: 2:20, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-02-12 through 2026-03-02
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4075)
Duration: 2:24, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-03-05 through 2026-03-07
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 6127)
Duration: 2:23, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5477)
Duration: 2:20, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-01-07 through 2026-01-16
Mon
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 4075)
Duration: 2:20, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-01-19 through 2026-02-11
Mon
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 4075)
Duration: 2:20, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 6127)
Duration: 2:25, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1586)
Duration: 2:18, non-stop Boeing 737-700 (73G)
Direct Codeshare Flights:
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 6158)
Duration: 2:20, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 6158)
Duration: 2:20, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 4036)
Duration: 2:16, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-03-05 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 4035)
Duration: 2:15, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4043)
Duration: 2:23, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 4031)
Duration: 2:20, non-stop Embraer EMB 175 (E7W)
- A domestic route departing from the Houston George Bush airport (IAH) and arriving at Greenville/Spartanburg airport (GSP).
- The flight distance is 836 miles, or 1345 km.
- The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
- For direct flights, the flight time varies between 2:15 and 2:25.