Greensboro (GSO) to Dulles (IAD) flights
CommuteAir flies nonstop from Piedmont Triad International Airport to Washington Dulles International Airport, with about 12 flights a week in July 2026. The 239-mile flight takes about 1h 12m gate to gate.
- Distance
- 239 mi · 385 km
- Flight time
- 1h 12m
- Airlines
- 1
- Seats filled
- 79%
Airlines flying GSO to IAD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| CommuteAir | 12 | Embraer ERJ-145 | 25,392 | 1h 13m |
| GoJet AirlinesSeasonal or ended | n/a | Bombardier CRJ550 | 4,019 | 1h 7m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
GSO to IAD flight schedule
3 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 6:00am and the last at 3:00pm. 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 4251United Airlines · operated by CommuteAir | 6:00am | 7:17am | 31 | 90% |
| UA 4819United Airlines · operated by CommuteAir | 2:52pm | 4:15pm | 21 | 74% |
| UA 4327United Airlines · operated by CommuteAir | 3:00pm | 4:18pm | 8 | 61% |
Is GSO to IAD on time?
From September 2025 to August 2026, 82% of 739 flights arrived within 15 minutes of schedule and 1.8% were cancelled. Flights leaving around 6am were the most punctual (90%), those around 3pm the least (61%). Most delay time was caused by late-arriving aircraft (60%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 739 | 82% | 24 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 |
|---|---|---|---|
| 6am to 7am | 202 | 90% | |
| 10am to 11am | 89 | 88% | |
| 2pm to 3pm | 210 | 76% | |
| 3pm to 4pm | 70 | 61% | |
| 7pm to 8pm | 136 | 82% | |
| 8pm to 9pm | 32 | 87% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 78 | 3,010 | |
| September 2025 | 70 | 2,688 | |
| October 2025 | 63 | 2,458 | |
| November 2025 | 53 | 2,073 | |
| December 2025 | 60 | 2,310 | |
| January 2026 | 53 | 1,845 | |
| February 2026 | 52 | 1,863 | |
| March 2026 | 57 | 2,324 | |
| April 2026 | 73 | 2,905 | |
| May 2026 | 75 | 3,048 | |
| June 2026 | 56 | 2,508 | |
| July 2026 | 54 | 2,379 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.