Historical on-time performance
Fort Lauderdale to Houston
965 miData through May 2026Source: 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)
Cancelled1.0%of scheduled flights
based on 2,750 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time87%Medianon timep9020 minCancel0.8%Flights1,803
- Spirit AirlinesOn-time71%Medianon timep9065 minCancel1.4%Flights947
Why flights run late
Delay causes
- Airline34%
- Weather3%
- Air traffic (NAS)36%
- Late aircraft26%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline33%
- Weather44%
- Air traffic (NAS)22%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 27 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 FLL → IAH
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 — 87% on time.
- Mornings87% on time · p90 15 min · 2,599 flights
- Middays82% on time · p90 40 min · 1,528 flights
- Evenings67% on time · p90 80 min · 1,211 flights
- Afternoons65% on time · p90 80 min · 1,512 flights
- Overnights60% on time · p90 70 min · 1,062 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 82% on time.
- Tuesdays82% on time · p90 35 min · 1,038 flights
- Wednesdays79% on time · p90 40 min · 1,056 flights
- Thursdays76% on time · p90 50 min · 1,168 flights
- Fridays74% on time · p90 60 min · 1,174 flights
- Saturdays74% on time · p90 65 min · 1,138 flights
- Mondays73% on time · p90 50 min · 1,165 flights
- Sundays69% on time · p90 70 min · 1,173 flights
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