Houston (IAH) to Charleston (CHS) flights
Mesa Airlines, United Airlines fly nonstop from George Bush Intercontinental Airport to Charleston International Airport, with about 13 flights a week in July 2026. The 925-mile flight takes about 2h 30m gate to gate.
- Distance
- 925 mi · 1,489 km
- Flight time
- 2h 30m
- Airlines
- 2
- Seats filled
- 78%
Airlines flying IAH to CHS
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Mesa Airlines | 7 | Embraer E175 | 28,868 | 2h 31m |
| United Airlines | 6 | Airbus A319, Boeing 737-800, Airbus A320-100/200 | 22,143 | 2h 28m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IAH to CHS flight schedule
4 flight numbers flew this route in August 2026. The first usually leaves at 12:15pm and the last at 6:37pm. 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 6295United Airlines · operated by Mesa Airlines | 12:15pm | 4:02pm | 13 | 80% |
| UA 5574United Airlines · operated by SkyWest Airlines | 12:50pm | 4:32pm | 15 | 60% |
| UA 2237United Airlines | 6:35pm | 10:11pm | 18 | 82% |
| UA 1469United Airlines | 6:37pm | 10:15pm | 9 | 61% |
Is IAH to CHS on time?
From September 2025 to August 2026, 81% of 689 flights arrived within 15 minutes of schedule and 0.4% were cancelled. Flights leaving around 6pm were the most punctual (81%), those around 12pm the least (80%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (38%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 689 | 81% | 13 min | 0.4% |
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
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 58 | 4,457 | |
| September 2025 | 52 | 3,357 | |
| October 2025 | 58 | 3,519 | |
| November 2025 | 59 | 3,419 | |
| December 2025 | 56 | 3,410 | |
| January 2026 | 55 | 3,722 | |
| February 2026 | 54 | 4,163 | |
| March 2026 | 61 | 4,959 | |
| April 2026 | 60 | 5,193 | |
| May 2026 | 61 | 5,014 | |
| June 2026 | 55 | 5,058 | |
| July 2026 | 57 | 5,101 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.