Historical on-time performance
Charlotte to Houston
913 miData through May 2026Source: US DOT · BTS
Flights on CLT–IAH arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled1.7%of scheduled flights
based on 2,021 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time81%Medianon timep9035 minCancel1.5%Flights392
- American AirlinesOn-time74%Medianon timep9060 minCancel1.8%Flights1,629
Why flights run late
Delay causes
- Airline29%
- Weather8%
- Air traffic (NAS)23%
- Late aircraft39%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline6%
- Weather91%
- Air traffic (NAS)3%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 35 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly CLT → IAH
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 86% on time.
- Mornings86% on time · p90 20 min · 2,173 flights
- Middays79% on time · p90 40 min · 1,344 flights
- Afternoons69% on time · p90 65 min · 1,501 flights
- Overnights61% on time · p90 80 min · 984 flights
- Evenings60% on time · p90 95 min · 1,297 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 78% on time.
- Tuesdays78% on time · p90 45 min · 968 flights
- Wednesdays78% on time · p90 35 min · 975 flights
- Saturdays72% on time · p90 55 min · 941 flights
- Thursdays72% on time · p90 55 min · 1,088 flights
- Sundays72% on time · p90 65 min · 1,109 flights
- Mondays71% on time · p90 55 min · 1,107 flights
- Fridays69% on time · p90 60 min · 1,115 flights
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