Historical on-time performance
Houston to Charlotte
913 miData through May 2026Source: US DOT · BTS
Flights on IAH–CLT arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled2.0%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
- American AirlinesbestOn-time80%Medianon timep9050 minCancel2.1%Flights1,629
- United AirlinesOn-time71%Medianon timep9060 minCancel1.5%Flights392
Why flights run late
Delay causes
- Airline33%
- Weather9%
- Air traffic (NAS)9%
- Late aircraft49%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline10%
- Weather85%
- Air traffic (NAS)5%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 40 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 IAH → CLT
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 — 84% on time.
- Mornings84% on time · p90 25 min · 2,586 flights
- Middays78% on time · p90 50 min · 1,744 flights
- Afternoons74% on time · p90 55 min · 888 flights
- Evenings65% on time · p90 80 min · 2,061 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 80% on time.
- Wednesdays80% on time · p90 35 min · 977 flights
- Tuesdays77% on time · p90 50 min · 965 flights
- Saturdays77% on time · p90 55 min · 947 flights
- Fridays75% on time · p90 65 min · 1,107 flights
- Thursdays75% on time · p90 55 min · 1,086 flights
- Sundays74% on time · p90 60 min · 1,110 flights
- Mondays72% on time · p90 50 min · 1,109 flights
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