Route
CHS → IAH
Charleston International Airport George Bush Intercontinental Airport
925 miles
Return route IAH → CHS →
How punctual is this route?
- On-time arrivals
- 82.9%
- Less than 15 minutes late
- Cancelled
- 0.4%
- Of scheduled flights
- Average delay when late
- 88 min
- Flights arriving 15+ minutes late
- Flights tracked
- 237
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 40%
- Air traffic control & airport 32%
- Airline (crew, maintenance, cleaning) 24%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Jan 2026
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| January 2026 | 88.0% | 25 |
| February 2026 | 91.7% | 24 |
| March 2026 | 78.1% | 32 |
| April 2026 | 70.0% | 31 |
| May 2026 | 82.1% | 29 |
| June 2026 | 84.6% | 26 |
| July 2026 | 88.0% | 25 |
| August 2026 | 84.1% | 45 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| United Airlines | 222 | 84.0% | 0.5% | 89 min |
| SkyWest Airlines | 15 | 66.7% | 0.0% | 84 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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