Greenville/Greer/Spartanburg (GSP) to Dulles (IAD) flights
CommuteAir flies nonstop from Greenville-Spartanburg International Airport to Washington Dulles International Airport, with about 19 flights a week in July 2026. The 384-mile flight takes about 1h 33m gate to gate.
- Distance
- 384 mi · 618 km
- Flight time
- 1h 33m
- Airlines
- 1
- Seats filled
- 89%
Airlines flying GSP to IAD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| CommuteAir | 19 | Embraer ERJ-145 | 35,175 | 1h 33m |
| GoJet AirlinesSeasonal or ended | n/a | Bombardier CRJ550 | 2,224 | 1h 28m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
GSP to IAD flight schedule
7 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 10:25am and the last at 7:47pm. 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 4557United Airlines · operated by GoJet Airlines | 10:25am | 11:55am | 8 | n/a |
| UA 4810United Airlines · operated by CommuteAir | 10:25am | 11:57am | 7 | n/a |
| UA 4958United Airlines · operated by CommuteAir | 10:30am | 12:08pm | 10 | 91% |
| UA 4959United Airlines · operated by CommuteAir | 2:55pm | 4:30pm | 8 | 80% |
| UA 4382United Airlines · operated by GoJet Airlines | 3:01pm | 4:33pm | 21 | 81% |
| UA 4313United Airlines · operated by CommuteAir | 7:40pm | 9:19pm | 10 | 78% |
| UA 4242United Airlines · operated by CommuteAir | 7:47pm | 9:25pm | 21 | 76% |
Is GSP to IAD on time?
From September 2025 to August 2026, 84% of 856 flights arrived within 15 minutes of schedule and 1.8% were cancelled. Flights leaving around 10am were the most punctual (91%), those around 2pm the least (79%). Most delay time was caused by late-arriving aircraft (66%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 856 | 84% | 18 min | 1.8% |
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
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 9am to 10am | 19 | 84% | |
| 10am to 11am | 333 | 91% | |
| 2pm to 3pm | 311 | 79% | |
| 3pm to 4pm | 21 | 81% | |
| 7pm to 8pm | 156 | 80% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 92 | 4,013 | |
| September 2025 | 70 | 3,315 | |
| October 2025 | 62 | 2,937 | |
| November 2025 | 54 | 2,462 | |
| December 2025 | 57 | 2,620 | |
| January 2026 | 51 | 2,281 | |
| February 2026 | 51 | 2,371 | |
| March 2026 | 65 | 2,883 | |
| April 2026 | 90 | 3,847 | |
| May 2026 | 88 | 3,797 | |
| June 2026 | 85 | 3,660 | |
| July 2026 | 87 | 3,751 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.