Dulles (IAD) to Portland (PWM) flights
Republic Airline, United Airlines, GoJet Airlines fly nonstop from Washington Dulles International Airport to Portland International Jetport, with about 25 flights a week in July 2026. The 493-mile flight takes about 1h 41m gate to gate.
- Distance
- 493 mi · 793 km
- Flight time
- 1h 41m
- Airlines
- 3
- Seats filled
- 82%
Airlines flying IAD to PWM
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Republic Airline | 16 | Embraer E175, Embraer E170 | 45,926 | 1h 41m |
| United Airlines | 7 | Boeing 737 MAX 8, Boeing 737 MAX 9, Boeing 737-800 | 6,700 | 1h 41m |
| GoJet Airlines | 2 | Bombardier CRJ550 | 13,829 | 1h 42m |
| CommuteAirSeasonal or ended | n/a | Embraer ERJ-145 | 1,389 | 1h 40m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IAD to PWM flight schedule
7 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 8:20am 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 3548United Airlines · operated by Republic Airline | 8:20am | 10:04am | 27 | 94% |
| UA 3535United Airlines · operated by Republic Airline | 12:45pm | 2:34pm | 8 | 92% |
| UA 3709United Airlines · operated by Republic Airline | 12:47pm | 2:38pm | 21 | 95% |
| UA 3538United Airlines · operated by Republic Airline | 5:30pm | 7:24pm | 18 | 88% |
| UA 3651United Airlines · operated by Republic Airline | 5:30pm | 7:27pm | 10 | 90% |
| UA 2064United Airlines | 10:10pm | 11:51pm | 10 | 71% |
| UA 3459United Airlines · operated by Republic Airline | 10:10pm | 11:59pm | 18 | 76% |
Is IAD to PWM on time?
From September 2025 to August 2026, 83% of 1,158 flights arrived within 15 minutes of schedule and 2.2% were cancelled. Flights leaving around 8am were the most punctual (90%), those around 10pm the least (74%). Most delay time was caused by late-arriving aircraft (51%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,158 | 83% | 17 min | 2.2% |
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 | 255 | 90% | |
| 12pm to 1pm | 331 | 89% | |
| 5pm to 6pm | 361 | 76% | |
| 10pm to 11pm | 193 | 74% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 109 | 7,194 | |
| September 2025 | 94 | 6,193 | |
| October 2025 | 113 | 6,847 | |
| November 2025 | 106 | 5,067 | |
| December 2025 | 88 | 4,602 | |
| January 2026 | 69 | 3,468 | |
| February 2026 | 53 | 2,977 | |
| March 2026 | 64 | 2,961 | |
| April 2026 | 90 | 3,845 | |
| May 2026 | 118 | 7,495 | |
| June 2026 | 115 | 8,335 | |
| July 2026 | 109 | 8,860 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.