Greenville-Spartanburg International Airport
Greenville, United StatesGSP / KGSP
Regional airport · 49 direct destinations · 1 runway · longest runway 11,001 ft
76 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Route
Greenville → Denver
GSP
GreenvilleGreenville-Spartanburg International Airport
GreenvilleGreenville-Spartanburg International AirportDENDenverDenver International Airport
DenverDenver International Airport- Distance
- 1,276 mi
- Estimated flight time
- ~3h 5m
Denver is currently 2 hours behind Greenville.
Observed nonstop
How often does this route fly?
Frequency
Daily at most
On average around 1 flights a day, observed from October 2025 to September 2026.
- 1
- flights per day
- 1
- busiest month · Oct
- 3 hr 6 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 1Jan2026
- 1Feb
- 1Mar
- 1Apr
- 1May
- 1Jun
- 1Jul
- 1Aug
- 1Sep
- 1Oct2025
- 1Nov
- 1Dec
Airlines
Who flies it
United Airlinessummer
SkyWest Airlineswinter
Through the day
Departure times
Local time in Greenville. Most departures between 16:00 and 19:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 0.9Mon
- 0.9Tue
- 0.8Wed
- 0.9Thu
- 0.8Fri
- 0.8Sat
- 0.9Sun
Fleet
Aircraft observed
- Embraer 175E75L38%
- Airbus A320A32032%
- Airbus A319A31927%
- Boeing 737-800B7384%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 1 | 23 |
|
| February 2026 | 1 | 26 |
|
| March 2026 | 1 | 27 |
|
| April 2026 | 1 | 27 |
|
| May 2026 | 1 | 27 |
|
| June 2026 | 1 | 26 |
|
| July 2026 | 1 | 24 |
|
| August 2026 | 1 | 27 |
|
| September 2026 | 1 | 25 |
|
| October 2025 | 1 | 29 |
|
| November 2025 | 1 | 29 |
|
| December 2025 | 1 | 24 |
|
Airlines observed on this route
From observed callsign routes on GSP-DEN - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The 4th longest observed direct route from GSP, out of 49.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Greenville: 49.
- Direct destinations observed from Denver: 203.
The airports on this route
Denver International Airport
Denver, United StatesDEN / KDEN
International hub · 203 direct destinations · 6 runways · longest runway 16,001 ft
52 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
About the route from Greenville to Denver
The observed direct connection between Greenville-Spartanburg International Airport (GSP) and Denver International Airport (DEN) covers approximately 1,276 mi. The estimated flight time is around 3h 5m. SkyWest Airlines and United Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Greenville from Denver by air?
- The great-circle distance between Greenville-Spartanburg International Airport and Denver International Airport is approximately 1,276 mi.
- How long is the flight from Greenville to Denver?
- Based on the distance, the estimated flight time is about 3h 5m. This is an estimate, not a schedule.
- Is there a direct connection from Greenville to Denver?
- Yes, a direct connection between GSP and DEN has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: SkyWest Airlines and United Airlines.
- How often is there a flight from Greenville to Denver?
- On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 314 observed flights. Mainly United Airlines, SkyWest Airlines. That is an observation, not a timetable.
- What is the current time difference between Greenville and Denver?
- Denver is currently 2 hours behind Greenville.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.