Charlotte Amalie (STT) to Dulles (IAD) flights
United Airlines flies nonstop from Cyril E. King Airport to Washington Dulles International Airport, with about 8 flights a week in July 2026. The 1,606-mile flight takes about 4h 10m gate to gate.
- Distance
- 1,606 mi · 2,585 km
- Flight time
- 4h 10m
- Airlines
- 1
- Seats filled
- 81%
Airlines flying STT to IAD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 8 | Boeing 737 MAX 8 | 44,369 | 4h 10m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
STT to IAD flight schedule
1 flight numbers flew this route in August 2026. The first usually leaves at 4:45pm and the last at 4:45pm. 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 1445United Airlines | 4:45pm | 8:58pm | 13 | 83% |
Is STT to IAD on time?
From September 2025 to August 2026, 83% of 331 flights arrived within 15 minutes of schedule and 1.2% were cancelled. Flights leaving around 5pm were the most punctual (84%), those around 12pm the least (76%). Most delay time was caused by late-arriving aircraft (57%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 331 | 83% | 13 min | 1.2% |
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 |
|---|---|---|---|
| 12pm to 1pm | 43 | 76% | |
| 1pm to 2pm | 125 | 84% | |
| 4pm to 5pm | 143 | 84% | |
| 5pm to 6pm | 20 | 84% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 18 | 2,371 | |
| September 2025 | 4 | 388 | |
| October 2025 | 10 | 960 | |
| November 2025 | 31 | 4,057 | |
| December 2025 | 45 | 5,468 | |
| January 2026 | 35 | 4,829 | |
| February 2026 | 27 | 3,759 | |
| March 2026 | 32 | 4,297 | |
| April 2026 | 29 | 4,092 | |
| May 2026 | 33 | 4,614 | |
| June 2026 | 33 | 4,717 | |
| July 2026 | 34 | 4,817 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.