Charleston (CHS) to Houston (IAH) flights
Mesa Airlines, United Airlines fly nonstop from Charleston International Airport to George Bush Intercontinental Airport, with about 13 flights a week in July 2026. The 925-mile flight takes about 2h 44m gate to gate.
- Distance
- 925 mi · 1,489 km
- Flight time
- 2h 44m
- Airlines
- 2
- Seats filled
- 81%
Airlines flying CHS to IAH
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Mesa Airlines | 7 | Embraer E175 | 29,560 | 2h 44m |
| United Airlines | 6 | Airbus A319, Boeing 737-800, Airbus A320-100/200 | 23,391 | 2h 44m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
CHS to IAH flight schedule
4 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 6:50am and the last at 5:15pm. 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 434United Airlines | 6:50am | 8:21am | 9 | 87% |
| UA 1155United Airlines | 7:00am | 8:38am | 21 | 95% |
| UA 6329United Airlines · operated by Mesa Airlines | 5:00pm | 6:55pm | 13 | 81% |
| UA 5570United Airlines · operated by SkyWest Airlines | 5:15pm | 7:01pm | 15 | 67% |
Is CHS to IAH on time?
From September 2025 to August 2026, 86% of 689 flights arrived within 15 minutes of schedule and 0.6% were cancelled. Flights leaving around 7am were the most punctual (92%), those around 5pm the least (81%). Most delay time was caused by late-arriving aircraft (36%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 689 | 86% | 14 min | 0.6% |
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 | 248 | 91% | |
| 7am to 8am | 101 | 92% | |
| 5pm to 6pm | 340 | 81% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 57 | 4,763 | |
| September 2025 | 52 | 3,405 | |
| October 2025 | 58 | 3,669 | |
| November 2025 | 59 | 3,534 | |
| December 2025 | 56 | 3,774 | |
| January 2026 | 56 | 3,744 | |
| February 2026 | 52 | 4,188 | |
| March 2026 | 61 | 4,737 | |
| April 2026 | 59 | 5,015 | |
| May 2026 | 60 | 5,105 | |
| June 2026 | 56 | 5,652 | |
| July 2026 | 56 | 5,365 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.