Dulles (IAD) to Sacramento (SMF) flights
United Airlines flies nonstop from Washington Dulles International Airport to Sacramento International Airport, with about 7 flights a week in July 2026. The 2,357-mile flight takes about 5h 43m gate to gate.
- Distance
- 2,357 mi · 3,793 km
- Flight time
- 5h 43m
- Airlines
- 1
- Seats filled
- 82%
Airlines flying IAD to SMF
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 7 | Boeing 737 MAX 9, Boeing 737-800, Boeing 737-900ER | 52,634 | 5h 43m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IAD to SMF flight schedule
1 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 6:00pm and the last at 6:00pm. 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 2435United Airlines | 6:00pm | 8:45pm | 31 | 81% |
Is IAD to SMF on time?
From September 2025 to August 2026, 80% of 365 flights arrived within 15 minutes of schedule and 1.4% were cancelled. Flights leaving around 7pm were the most punctual (86%), those around 6pm the least (64%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (33%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 365 | 80% | 12 min | 1.4% |
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 |
|---|---|---|---|
| 5pm to 6pm | 216 | 80% | |
| 6pm to 7pm | 39 | 64% | |
| 7pm to 8pm | 110 | 86% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 31 | 4,082 | |
| September 2025 | 30 | 3,751 | |
| October 2025 | 31 | 4,265 | |
| November 2025 | 30 | 3,623 | |
| December 2025 | 31 | 4,778 | |
| January 2026 | 30 | 4,123 | |
| February 2026 | 28 | 3,965 | |
| March 2026 | 31 | 4,772 | |
| April 2026 | 30 | 4,614 | |
| May 2026 | 30 | 4,807 | |
| June 2026 | 28 | 4,733 | |
| July 2026 | 30 | 5,121 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.