Charleston (CHS) to Dulles (IAD) flights
United Airlines, Republic Airline, CommuteAir fly nonstop from Charleston International Airport to Washington Dulles International Airport, with about 20 flights a week in July 2026. The 442-mile flight takes about 1h 33m gate to gate.
- Distance
- 442 mi · 711 km
- Flight time
- 1h 33m
- Airlines
- 3
- Seats filled
- 79%
Airlines flying CHS to IAD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 7 | Airbus A319, Boeing 737-700 / MAX 7, Boeing 737 MAX 9 | 50,288 | 1h 30m |
| Republic Airline | 7 | Embraer E175, Embraer E170 | 18,018 | 1h 36m |
| CommuteAir | 6 | Embraer ERJ-145 | 2,706 | 1h 43m |
| Mesa AirlinesSeasonal or ended | n/a | Embraer E175 | 10,912 | 1h 33m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
CHS to IAD flight schedule
5 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 10:14am and the last at 7:51pm. 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 1858United Airlines | 10:14am | 11:45am | 31 | 93% |
| UA 3401United Airlines · operated by Republic Airline | 2:47pm | 4:33pm | 10 | 85% |
| UA 1757United Airlines | 2:54pm | 4:26pm | 21 | 67% |
| UA 4322United Airlines · operated by CommuteAir | 7:46pm | 9:30pm | 10 | 56% |
| UA 6194United Airlines · operated by Mesa Airlines | 7:51pm | 9:32pm | 18 | 82% |
Is CHS to IAD on time?
From September 2025 to August 2026, 84% of 1,034 flights arrived within 15 minutes of schedule and 1.5% were cancelled. Flights leaving around 10am were the most punctual (93%), those around 7pm the least (79%). Most delay time was caused by late-arriving aircraft (60%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,034 | 84% | 17 min | 1.5% |
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 |
|---|---|---|---|
| 6am to 7am | 36 | 94% | |
| 10am to 11am | 285 | 93% | |
| 2pm to 3pm | 360 | 80% | |
| 7pm to 8pm | 353 | 79% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 89 | 6,425 | |
| September 2025 | 80 | 5,909 | |
| October 2025 | 83 | 6,159 | |
| November 2025 | 83 | 6,924 | |
| December 2025 | 76 | 5,399 | |
| January 2026 | 60 | 3,670 | |
| February 2026 | 71 | 5,678 | |
| March 2026 | 91 | 7,997 | |
| April 2026 | 99 | 8,870 | |
| May 2026 | 110 | 9,964 | |
| June 2026 | 91 | 7,791 | |
| July 2026 | 89 | 7,269 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.