Historical on-time performance
Fort Lauderdale to Houston
965 miData through Dec 2025Source: US DOT · BTS
Flights on FLL–IAH arrive on time 81% of the time over the last 12 months.
On-time rate81%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights
based on 2,727 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time84%Medianon timep9030 minCancel0.9%Flights1,632
- Spirit AirlinesOn-time77%Medianon timep9050 minCancel0.5%Flights1,095
Why flights run late
Delay causes
- Airline30%
- Weather4%
- Air traffic (NAS)38%
- Late aircraft28%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly FLL → IAH
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 · 2,624 flights
- Middays81% on time · p90 40 min · 1,349 flights
- Evenings65% on time · p90 85 min · 1,159 flights
- Afternoons65% on time · p90 80 min · 1,520 flights
- Overnights61% on time · p90 70 min · 1,068 flights
Best day of week
Tuesdays are the most reliable day to fly this route — 80% on time.
- Tuesdays80% on time · p90 40 min · 1,047 flights
- Wednesdays76% on time · p90 45 min · 1,039 flights
- Thursdays74% on time · p90 55 min · 1,117 flights
- Saturdays74% on time · p90 60 min · 1,114 flights
- Fridays74% on time · p90 60 min · 1,128 flights
- Mondays73% on time · p90 55 min · 1,136 flights
- Sundays69% on time · p90 75 min · 1,139 flights
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