Historical on-time performance
Houston to Miami
955 miData through May 2026Source: US DOT · BTS
Flights on HOU–MIA arrive on time 49% of the time over the last 12 months.
On-time rate49%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.7%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-time49%Median15 minp9060 minCancel0.7%Flights139
Why flights run late
Delay causes
- Airline42%
- Weather5%
- Air traffic (NAS)20%
- Late aircraft32%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline100%
- Weather0%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 1 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 HOU → MIA
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 — 83% on time.
- Mornings83% on time · p90 25 min · 325 flights
- Evenings76% on time · p90 35 min · 291 flights
- Middays76% on time · p90 40 min · 458 flights
- Overnights64% on time · p90 45 min · 264 flights
- Afternoons49% on time · p90 85 min · 330 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 63% to 74% on time.
- Tuesdays74% on time · p90 40 min · 212 flights
- Saturdays72% on time · p90 55 min · 252 flights
- Wednesdays72% on time · p90 50 min · 211 flights
- Fridays71% on time · p90 50 min · 256 flights
- Mondays71% on time · p90 40 min · 249 flights
- Sundays70% on time · p90 45 min · 239 flights
- Thursdays63% on time · p90 55 min · 249 flights
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