The sector is held by Mesa Airlines and United Airlines.
Airport pair · hand carry reference
GSP Greenville to IAH Houston
Greenville Spartanburg, the United States, to George Bush Intercontinental, the United States. Computed from the scheduled network held on 2026-09-07.
- Nonstop
- About once a day
- Great circle
- 1,346 km
- Block, estimated
- 2h 13m
- Door to door
- 8h 58m
What GSP to IAH looks like
The GSP to IAH sector, the carriers on it and the flying time, before anything is promised to anybody.
Greenville GSP to Houston IAH is a medium haul sector of 1,346 km by great circle, flown nonstop about once a day.
At the cruise speed this site models for 1,346 km, 830 km an hour, and thirty minutes of taxi at the two ends, the flight blocks at about 2h 13m.
Greenville GSP is a mid sized airport in the network held here, 59 scheduled destinations and 74.8 departures a day. Houston IAH has 197 destinations and 641 departures a day.
Houston carries about 8.6 times the departures of Greenville, so a courier who has to be rebooked has far more to work with at one end of this pair than at the other.
Houston is one hour behind of Greenville all year.
The pair sits inside the Americas, a corridor where the site already publishes 13 written lanes that go into customs and ground detail this page does not.
Who flies the sector, and how often
Average daily frequencies on GSP to IAH from the scheduled route statistics, both directions, with the operating carriers named.
| Direction | Flights a day | Flights a week | Operated by |
|---|---|---|---|
| GSP to IAH | 1.86 | 13 | Mesa Airlines, United Airlines |
| IAH to GSP | 1.71 | 12 | United Airlines |
Two carriers hold the sector, Mesa Airlines and United Airlines, which gives a missed departure somewhere to go without leaving the nonstop.
Between them the two directions put about 25 departures a week on GSP to IAH, which is the number that decides whether a seat can be found today or on Thursday.
The clock from collection to signature
The same ground timings the route calculator starts from, applied to the 2h 13m block time on GSP to IAH. Change any of them in the tool further down and the total moves with them.
| Stage | Allowed | Elapsed |
|---|---|---|
| Collection and the run to GSP | 90 min | 1h 30m |
| At GSP before departure | 180 min | 4h 30m |
| GSP to IAH in the air, estimated | 133 min | 6h 43m |
| Formalities at IAH | 90 min | 8h 13m |
| Delivery run in Houston | 45 min | 8h 58m |
| Door to door | 538 min | 8h 58m |
On the desk standard ground timings, ninety minutes to collect and reach the airport, three hours at the airport before departure, ninety minutes of arrival formalities and a forty five minute delivery run, the door to door figure for GSP to IAH is 8h 58m.
A courier who leaves Greenville at 09:00 local is on the ground in Houston at about 10:13 local and at the door by 12:28 the same day.
Working backwards from a six in the evening handover in Houston, the last useful departure from Greenville is around 14:32 local.
When the nonstop does not work
Every airport that joins the two ends, ranked by when they land, among the ones whose weaker leg is dependable enough to plan on. Connection time is allowed for the size of the hub. 27 of them join GSP to IAH.
| Connecting at | GSP to hub, flights a day | Hub to IAH, flights a day | Track, km | Estimated, gate to gate |
|---|---|---|---|---|
| Atlanta ATL | 8.29 | 15 | 1,355 | 4h 17m |
| Nashville BNA | 3.43 | 5 | 1,483 | 4h 29m |
| Charlotte CLT | 9.14 | 8.29 | 1,588 | 4h 33m |
| Dallas DFW | 3.86 | 19.57 | 1,746 | 4h 48m |
| Tampa TPA | 1 | 3.71 | 2,035 | 5h 00m |
| Detroit DTW | 3 | 7.57 | 2,550 | 5h 31m |
One nonstop a day means one chance a day, so the connections below are what a consignment that arrives at GSP in the afternoon actually flies on.
27 airports connect the two ends on the scheduled network held here. The quickest of the dependable ones is Atlanta ATL, where the weaker of the two legs still runs 8.3 times a day.
Through ATL the routing covers 1,355 km against the 1,346 km nonstop track and takes about 4h 17m in the air and on the ground at the hub, allowing 90 minutes to connect at an airport of that size.
That is only 2h 04m more than the nonstop, which is close enough that a connection is worth taking when the nonstop is full or badly timed.
Behind it, Nashville BNA at 4h 29m and Charlotte CLT at 4h 33m hold the same connection, so a booking has three hubs to try before it has to wait for the nonstop.
If nothing suitable leaves Greenville, Charlotte CLT is 121 km away by great circle and carries 219 scheduled destinations of its own, which is usually a shorter road transfer than a lost day.
If nothing suitable leaves Houston, Houston HOU is 38 km away by great circle and carries 145 scheduled destinations of its own, which is usually a shorter road transfer than a lost day.
Industry within reach of the two ends
Public manufacturing and research sites whose logistics run through GSP or IAH. Listed as industrial geography, not as customers of anyone.
- BMW, Spartanburg, South CarolinaThe group's largest plant by volume, building the X range. A German supplier base feeding an American line. Logistics through Greenville GSP.
Plan Greenville to Houston yourself
The same tool the dispatchers use, open to anybody and free. It is loaded with this pair already. Change either end, add a stopover or a preferred airline, and it works out the connection, the transit and the door to door clock, with the real departures underneath. Put it on your own site if it is useful to you.
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Restrictions
Where this came from, and where to look next
- Carriers and frequencies: AeroDataBox scheduled route statistics, retrieved 2026-09-07. Average daily flights, not a timetable.
- Distances: great circle from published coordinates. They read short against a flown track, which is why the block time above applies a factor to them.
- Block and connection times: the same model the route calculator lower down this page runs, at the same rounding.
- Restrictions: the airport notes file, checked 2026-09-07.
- Industrial sites: public company information. Nothing here says or implies that any company named is a customer of any courier operator.
Who publishes this. OnBoard Courier is a placement desk in Dubai. An assignment is carried out by a vetted partner operator, with the desk as the single point of contact from the quote to the signature. This page exists because our own dispatchers need the answer for GSP to IAH in the twenty minutes before a promise is made, and a reference only one operator can read is not a reference. Free to read, quote and cite. Found an error? Tell us and we will correct it.
If you need something moved rather than looked up, the desk prices a hand carry in fifteen minutes.
- The GSP airport entry
- The IAH airport entry
- Hand carry into the United States
- The written lane, Doha to Houston
- The written lane, Dubai to Houston
- The written lane, Houston to Aberdeen
- The route calculator
More pairs through GSP and IAH: Atlanta to Greenville, Chicago to Greenville, Greenville to Detroit, Greenville to Charlotte, Greenville to Miami, Greenville to San Diego, New York to Greenville, Greenville to Philadelphia.