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Route Reliability

Charleston → Houston

CHS–HOU · 928 miles · Charleston International Airport to William P. Hobby Airport

83
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
1 min
Average arrival delay
0%
Cancelled
208
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 79% of the time across 208 flights. No comparison to make.

What the data says

Morning-you made the right choice.

CHS–HOU flights departing between 3–6 AM arrived on time 98% of the time, versus 53% between 6–9 PM.

Sunday scaries are real for this one.

CHS–HOU flights arrived on time 94% of the time on Wednesdays and just 59% on Sundays. That gap is worth planning around.

It basically never cancels.

Out of 208 scheduled flights, only 0.0% were cancelled.

Flights on this route

The breakdown

On-time by weekday
  • Mon91%(32 flights)
  • Tue68%(19 flights)
  • Wed94%(17 flights)
  • Thu83%(29 flights)
  • Fri79%(33 flights)
  • Sat91%(32 flights)
  • Sun59%(44 flights)
On-time by departure window
  • 3–6 AM98%(59 flights)
  • 6–9 AM—(8 flights)
  • 9 AM–12 PM—(9 flights)
  • 12–3 PM72%(29 flights)
  • 3–6 PM73%(71 flights)
  • 6–9 PM53%(30 flights)
On-time trend by month
72%
May

Jun 61% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202561%28
July 202579%28
August 202573%11
October 202580%30
November 202567%18
December 202593%15
March 2026100%27
April 202674%19
May 202672%18

Same trip, other airports

Keep nerding

Based on 208 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.