Historical on-time performance
Houston to Kansas City
643 miData through Dec 2025Source: US DOT · BTS
Flights on IAH–MCI arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.7%of scheduled flights
based on 287 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time75%Medianon timep9040 minCancel1.7%Flights287
Why flights run late
Delay causes
- Airline42%
- Weather6%
- Air traffic (NAS)20%
- Late aircraft32%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly IAH → MCI
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Middays are the most reliable time of day to fly this route — 82% on time.
- Middays82% on time · p90 45 min · 289 flights
- Afternoons71% on time · p90 65 min · 145 flights · limited
- Overnights70% on time · p90 55 min · 865 flights
- Evenings62% on time · p90 80 min · 233 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 66% to 76% on time.
- Tuesdays76% on time · p90 55 min · 216 flights
- Wednesdays73% on time · p90 65 min · 221 flights
- Mondays72% on time · p90 65 min · 227 flights
- Saturdays72% on time · p90 60 min · 217 flights
- Fridays72% on time · p90 65 min · 220 flights
- Sundays67% on time · p90 65 min · 212 flights
- Thursdays66% on time · p90 60 min · 223 flights
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