Historical on-time performance
Miami to Houston
955 miData through May 2026Source: US DOT · BTS
Flights on MIA–HOU arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.4%of scheduled flights
based on 139 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time77%Medianon timep9040 minCancel1.4%Flights139
Why flights run late
Delay causes
- Airline20%
- Weather0%
- Air traffic (NAS)31%
- Late aircraft49%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline50%
- Weather50%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 2 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 MIA → HOU
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 — 90% on time.
- Mornings90% on time · p90 10 min · 561 flights
- Afternoons74% on time · p90 50 min · 109 flights · limited
- Middays67% on time · p90 55 min · 342 flights
- Evenings59% on time · p90 95 min · 625 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 79% on time.
- Wednesdays79% on time · p90 50 min · 211 flights
- Tuesdays76% on time · p90 45 min · 213 flights
- Mondays73% on time · p90 60 min · 249 flights
- Thursdays72% on time · p90 55 min · 244 flights
- Fridays72% on time · p90 50 min · 257 flights
- Saturdays68% on time · p90 65 min · 252 flights
- Sundays67% on time · p90 60 min · 239 flights
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