Historical on-time performance
Houston to Tampa
787 miData through Dec 2025Source: US DOT · BTS
Flights on IAH–TPA arrive on time 80% of the time over the last 12 months.
On-time rate80%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights
based on 1,440 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time81%Medianon timep9040 minCancel0.8%Flights1,380
- Spirit AirlinesOn-time68%Medianon timep9055 minCancel3.3%Flights60
Why flights run late
Delay causes
- Airline21%
- Weather13%
- Air traffic (NAS)22%
- Late aircraft43%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly IAH → TPA
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 86% on time.
- Mornings86% on time · p90 20 min · 1,465 flights
- Afternoons74% on time · p90 70 min · 869 flights
- Middays72% on time · p90 60 min · 1,183 flights
- Evenings71% on time · p90 65 min · 1,362 flights
- Overnights65% on time · p90 155 min · 106 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 81% on time.
- Tuesdays81% on time · p90 35 min · 677 flights
- Saturdays79% on time · p90 50 min · 704 flights
- Fridays76% on time · p90 55 min · 715 flights
- Wednesdays75% on time · p90 50 min · 677 flights
- Sundays75% on time · p90 55 min · 746 flights
- Mondays75% on time · p90 70 min · 734 flights
- Thursdays74% on time · p90 50 min · 732 flights
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