Denver (DEN) to Greenville/Greer/Spartanburg (GSP) flights
United Airlines flies nonstop from Denver International Airport to Greenville-Spartanburg International Airport, with about 7 flights a week in July 2026. The 1,278-mile flight takes about 3h 3m gate to gate.
- Distance
- 1,278 mi · 2,057 km
- Flight time
- 3h 3m
- Airlines
- 1
- Seats filled
- 88%
Airlines flying DEN to GSP
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 7 | Airbus A320-100/200, Airbus A319 | 26,990 | 3h 2m |
| SkyWest AirlinesSeasonal or ended | n/a | Embraer E175 | 9,106 | 3h 5m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
DEN to GSP flight schedule
2 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 9:40am and the last at 10:13am. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| UA 2066United Airlines | 9:40am | 2:48pm | 21 | 71% |
| UA 1786United Airlines | 10:13am | 3:19pm | 10 | 80% |
Is DEN to GSP on time?
From September 2025 to August 2026, 86% of 364 flights arrived within 15 minutes of schedule and 1.1% were cancelled. Flights leaving around 10am were the most punctual (86%), those around 9am the least (85%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (52%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 364 | 86% | 8 min | 1.1% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 33 | 4,108 | |
| September 2025 | 30 | 3,485 | |
| October 2025 | 31 | 3,607 | |
| November 2025 | 30 | 3,137 | |
| December 2025 | 31 | 1,975 | |
| January 2026 | 29 | 1,894 | |
| February 2026 | 28 | 1,907 | |
| March 2026 | 29 | 2,142 | |
| April 2026 | 30 | 2,122 | |
| May 2026 | 31 | 3,625 | |
| June 2026 | 30 | 4,172 | |
| July 2026 | 30 | 4,156 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.