Historical on-time performance
Houston to Kansas City
643 miData through May 2026Source: US DOT · BTS
Flights on IAH–MCI arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 331 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time79%Medianon timep9030 minCancel0.0%Flights331
Why flights run late
Delay causes
- Airline48%
- Weather4%
- Air traffic (NAS)13%
- Late aircraft36%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline55%
- Weather38%
- Air traffic (NAS)5%
- Security2%
Most cancellations here are attributed to Airline. Shares are among 56 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 → MCI
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Middays are the most reliable time of day to fly this route — 82% on time.
- Middays82% on time · p90 40 min · 315 flights
- Overnights72% on time · p90 50 min · 937 flights
- Evenings56% on time · p90 85 min · 139 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 79% on time.
- Tuesdays79% on time · p90 50 min · 206 flights
- Wednesdays77% on time · p90 70 min · 211 flights
- Mondays72% on time · p90 60 min · 218 flights
- Fridays72% on time · p90 65 min · 214 flights
- Saturdays72% on time · p90 55 min · 215 flights
- Sundays69% on time · p90 70 min · 205 flights
- Thursdays69% on time · p90 50 min · 218 flights
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