Portland (PDX) to Dulles (IAD) flights
United Airlines flies nonstop from Portland International Airport to Washington Dulles International Airport, with about 7 flights a week in July 2026. The 2,327-mile flight takes about 4h 48m gate to gate.
- Distance
- 2,327 mi · 3,745 km
- Flight time
- 4h 48m
- Airlines
- 1
- Seats filled
- 86%
Airlines flying PDX to IAD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 7 | Boeing 737 MAX 9, Boeing 737 MAX 8, Boeing 737-900ER | 43,127 | 4h 48m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
PDX to IAD flight schedule
2 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 8:25am and the last at 11:30pm. 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 2016United Airlines | 8:25am | 4:26pm | 21 | 92% |
| UA 498United Airlines | 11:30pm | 7:32am | 10 | 91% |
Is PDX to IAD on time?
From September 2025 to August 2026, 94% of 291 flights arrived within 15 minutes of schedule and 1% were cancelled. Flights leaving around 10pm were the most punctual (100%), those around 11pm the least (90%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (49%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 291 | 94% | 4 min | 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
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 8am to 9am | 166 | 96% | |
| 10pm to 11pm | 20 | 100% | |
| 11pm to 12am | 105 | 90% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 31 | 4,713 | |
| September 2025 | 30 | 4,744 | |
| October 2025 | 31 | 4,790 | |
| November 2025 | 30 | 4,780 | |
| December 2025 | 15 | 2,439 | |
| January 2026 | 5 | 685 | |
| March 2026 | 27 | 3,450 | |
| April 2026 | 30 | 4,900 | |
| May 2026 | 31 | 4,366 | |
| June 2026 | 28 | 3,938 | |
| July 2026 | 31 | 4,457 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.