Sacramento (SMF) to Dulles (IAD) flights
United Airlines flies nonstop from Sacramento International Airport to Washington Dulles International Airport, with about 7 flights a week in July 2026. The 2,357-mile flight takes about 4h 49m gate to gate.
- Distance
- 2,357 mi · 3,793 km
- Flight time
- 4h 49m
- Airlines
- 1
- Seats filled
- 88%
Airlines flying SMF to IAD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 7 | Boeing 737 MAX 9, Boeing 737-800, Boeing 737-900ER | 56,225 | 4h 49m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SMF to IAD flight schedule
1 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 8:13am and the last at 8:13am. 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 1742United Airlines | 8:13am | 4:15pm | 31 | 95% |
Is SMF to IAD on time?
From September 2025 to August 2026, 96% of 365 flights arrived within 15 minutes of schedule and 1.6% were cancelled. Flights leaving around 7am were the most punctual (98%), those around 11pm the least (95%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (76%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 365 | 96% | 2 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 |
|---|---|---|---|
| 7am to 8am | 130 | 98% | |
| 8am to 9am | 216 | 96% | |
| 11pm to 12am | 19 | 95% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 31 | 5,276 | |
| September 2025 | 30 | 4,996 | |
| October 2025 | 31 | 4,982 | |
| November 2025 | 30 | 4,399 | |
| December 2025 | 31 | 4,767 | |
| January 2026 | 29 | 3,688 | |
| February 2026 | 28 | 3,704 | |
| March 2026 | 31 | 4,828 | |
| April 2026 | 30 | 4,776 | |
| May 2026 | 29 | 4,767 | |
| June 2026 | 28 | 4,882 | |
| July 2026 | 30 | 5,160 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.