Dulles (IAD) to Philadelphia (PHL) flights
Republic Airline, Mesa Airlines, GoJet Airlines fly nonstop from Washington Dulles International Airport to Philadelphia International Airport, with about 25 flights a week in July 2026. The 135-mile flight takes about 1h 8m gate to gate.
- Distance
- 135 mi · 217 km
- Flight time
- 1h 8m
- Airlines
- 3
- Seats filled
- 77%
Airlines flying IAD to PHL
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Republic Airline | 12 | Embraer E175, Embraer E170 | 10,891 | 1h 8m |
| Mesa Airlines | 6 | Embraer E175 | 3,900 | 1h 9m |
| GoJet Airlines | 6 | Bombardier CRJ550 | 27,872 | 1h 8m |
| CommuteAirSeasonal or ended | n/a | Embraer ERJ-145 | 4,064 | 1h 12m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IAD to PHL flight schedule
7 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 8:30am and the last at 10:10pm. 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 4015United Airlines · operated by Mesa Airlines | 8:30am | 9:43am | 25 | 79% |
| UA 3541United Airlines · operated by Republic Airline | 12:55pm | 2:10pm | 8 | 87% |
| UA 4016United Airlines · operated by Mesa Airlines | 1:05pm | 2:21pm | 21 | 80% |
| UA 4534United Airlines · operated by GoJet Airlines | 5:35pm | 6:54pm | 10 | 59% |
| UA 4014United Airlines · operated by Mesa Airlines | 5:36pm | 6:54pm | 4 | n/a |
| UA 4584United Airlines · operated by GoJet Airlines | 5:36pm | 6:53pm | 17 | 63% |
| UA 3502United Airlines · operated by Republic Airline | 10:10pm | 11:20pm | 10 | 71% |
Is IAD to PHL on time?
From September 2025 to August 2026, 80% of 1,104 flights arrived within 15 minutes of schedule and 3% were cancelled. Flights leaving around 8am were the most punctual (85%), those around 5pm the least (71%). Most delay time was caused by late-arriving aircraft (48%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,104 | 80% | 21 min | 3% |
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 | 334 | 85% | |
| 12pm to 1pm | 279 | 84% | |
| 1pm to 2pm | 59 | 78% | |
| 5pm to 6pm | 334 | 71% | |
| 10pm to 11pm | 98 | 79% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 98 | 4,267 | |
| September 2025 | 83 | 3,522 | |
| October 2025 | 92 | 3,775 | |
| November 2025 | 79 | 4,157 | |
| December 2025 | 91 | 4,074 | |
| January 2026 | 82 | 3,246 | |
| February 2026 | 74 | 2,911 | |
| March 2026 | 84 | 3,399 | |
| April 2026 | 77 | 3,103 | |
| May 2026 | 98 | 4,337 | |
| June 2026 | 112 | 5,308 | |
| July 2026 | 110 | 5,530 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.