HOU to CHS flight delays & on-time performance
Nonstop flights from William P. Hobby Airport to Charleston International Airport · 928 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at HOU or CHS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Houston (HOU) to Charleston (CHS) arrived on time 60% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.5% were cancelled, and 8% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 9pm did best (68% on time); around 7pm did worst (25%).
- Monday was the most reliable day to fly (72% on time) and Tuesday the least (27%).
- The largest source of delay minutes was late-arriving aircraft (59%).
Which airline is most on time from HOU to CHS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 60% | 0.5% | 20 min | 8.5% | 193 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 10am82%11 flights
- 12pm59%62 flights
- 4pm55%11 flights
- 6pm92%13 flights
- 7pm25%16 flights
- 8pm58%40 flights
- 9pm68%28 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday72%0.0% cancelled
- Tuesday27%0.0% cancelled
- Wednesday33%0.0% cancelled
- Thursday59%0.0% cancelled
- Friday60%0.0% cancelled
- Saturday71%0.0% cancelled
- Sunday60%2.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft59%
- Airline (crew, maintenance, cleaning, fueling)24%
- Air traffic control & airport congestion12%
- Extreme weather6%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Air traffic control & airport congestion100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Extreme weather0%
- Security0%
HOU to CHS: common questions
- How often are HOU to CHS flights on time?
- 60% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Houston to Charleston cancelled?
- 0.5% of scheduled flights were cancelled (1 of 193).
- How long are typical delays?
- Across all flights the average arrival delay was 20 min (early arrivals count as zero). Flights that were late arrived 46 min behind schedule on average, and 8.5% of flights were an hour or more late.
- How long is taxi time at HOU?
- Flights on this route spent 13 min taxiing from the gate to takeoff on average.
Related routes
Return trip: CHS to HOU — 80% on time
More flights from Houston
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: HOU → CHS, nonstop flights by US airlines that report to the DOT. How we calculate this.