Dulles (IAD) to Pittsburgh (PIT) flights
Republic Airline, Mesa Airlines, United Airlines, GoJet Airlines fly nonstop from Washington Dulles International Airport to Pittsburgh International Airport, with about 26 flights a week in July 2026. The 182-mile flight takes about 1h 4m gate to gate.
- Distance
- 182 mi · 293 km
- Flight time
- 1h 4m
- Airlines
- 4
- Seats filled
- 72%
Airlines flying IAD to PIT
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Republic Airline | 12 | Embraer E175, Embraer E170 | 43,419 | 1h 3m |
| Mesa Airlines | 7 | Embraer E175 | 9,557 | 1h 4m |
| United Airlines | 6 | Boeing 737-700 / MAX 7, Airbus A319, Airbus A320-100/200 | 44,927 | 1h 4m |
| GoJet Airlines | <1 | Bombardier CRJ550 | 1,072 | 1h 10m |
| CommuteAirSeasonal or ended | n/a | Embraer ERJ-145 | 1,857 | 1h 5m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IAD to PIT flight schedule
7 flight numbers flew this route in August 2026, 4 of them almost daily. The first usually leaves at 8:30am and the last at 10:20pm. 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 4244United Airlines · operated by CommuteAir | 8:30am | 9:36am | 20 | 85% |
| UA 6119United Airlines · operated by Mesa Airlines | 8:30am | 9:40am | 10 | 89% |
| UA 2066United Airlines | 12:56pm | 2:03pm | 8 | 88% |
| UA 2673United Airlines | 1:05pm | 2:11pm | 21 | 100% |
| UA 3517United Airlines · operated by Republic Airline | 5:15pm | 6:30pm | 21 | 71% |
| UA 3579United Airlines · operated by Republic Airline | 5:30pm | 6:40pm | 10 | 72% |
| UA 3540United Airlines · operated by Republic Airline | 10:20pm | 11:30pm | 31 | 79% |
Is IAD to PIT on time?
From September 2025 to August 2026, 85% of 1,456 flights arrived within 15 minutes of schedule and 1.6% were cancelled. Flights leaving around 8am were the most punctual (89%), those around 5pm the least (80%). Most delay time was caused by late-arriving aircraft (42%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,456 | 85% | 13 min | 1.6% |
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 |
|---|---|---|---|
| 8am to 9am | 363 | 89% | |
| 12pm to 1pm | 317 | 88% | |
| 1pm to 2pm | 47 | 100% | |
| 5pm to 6pm | 365 | 80% | |
| 10pm to 11pm | 364 | 80% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 124 | 8,201 | |
| September 2025 | 120 | 8,529 | |
| October 2025 | 124 | 9,191 | |
| November 2025 | 117 | 8,246 | |
| December 2025 | 124 | 8,388 | |
| January 2026 | 119 | 7,557 | |
| February 2026 | 111 | 7,660 | |
| March 2026 | 127 | 9,830 | |
| April 2026 | 120 | 8,705 | |
| May 2026 | 122 | 7,784 | |
| June 2026 | 122 | 8,608 | |
| July 2026 | 116 | 8,554 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.