Dulles (IAD) to Charleston (CHS) flights
United Airlines, Republic Airline, CommuteAir fly nonstop from Washington Dulles International Airport to Charleston International Airport, with about 20 flights a week in July 2026. The 442-mile flight takes about 1h 49m gate to gate.
- Distance
- 442 mi · 711 km
- Flight time
- 1h 49m
- Airlines
- 3
- Seats filled
- 74%
Airlines flying IAD to CHS
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 7 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Airbus A319 | 46,184 | 1h 47m |
| Republic Airline | 7 | Embraer E175, Embraer E170 | 18,950 | 1h 50m |
| CommuteAir | 6 | Embraer ERJ-145 | 3,046 | 2h 1m |
| Mesa AirlinesSeasonal or ended | n/a | Embraer E175 | 12,530 | 1h 46m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IAD to CHS flight schedule
5 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 8:15am and the last at 5:17pm. 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 1108United Airlines | 8:15am | 10:03am | 31 | 91% |
| UA 3487United Airlines · operated by Republic Airline | 12:35pm | 2:27pm | 10 | 91% |
| UA 1952United Airlines | 1:20pm | 3:10pm | 21 | 91% |
| UA 4310United Airlines · operated by CommuteAir | 5:15pm | 7:07pm | 10 | 62% |
| UA 6191United Airlines · operated by Mesa Airlines | 5:17pm | 7:10pm | 18 | 83% |
Is IAD to CHS on time?
From September 2025 to August 2026, 85% of 1,035 flights arrived within 15 minutes of schedule and 1.4% were cancelled. Flights leaving around 8am were the most punctual (91%), those around 5pm the least (76%). Most delay time was caused by late-arriving aircraft (45%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,035 | 85% | 13 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 |
|---|---|---|---|
| 8am to 9am | 285 | 91% | |
| 12pm to 1pm | 142 | 88% | |
| 1pm to 2pm | 218 | 89% | |
| 5pm to 6pm | 358 | 76% | |
| 10pm to 11pm | 32 | 81% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 89 | 6,458 | |
| September 2025 | 80 | 5,649 | |
| October 2025 | 82 | 6,314 | |
| November 2025 | 84 | 6,796 | |
| December 2025 | 75 | 5,286 | |
| January 2026 | 61 | 3,970 | |
| February 2026 | 71 | 5,766 | |
| March 2026 | 93 | 8,511 | |
| April 2026 | 99 | 8,406 | |
| May 2026 | 109 | 8,851 | |
| June 2026 | 89 | 7,384 | |
| July 2026 | 90 | 7,319 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.