OnTimeStats

Historical on-time performance

Houston to Lafayette

201 miData through Dec 2025Source: US DOT · BTS

Flights on IAH–LFT arrive on time 73% of the time over the last 12 months.

On-time rate73%arrived within 15 min
p90 delay80 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights

based on 249 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time73%
    Medianon time
    p9080 min
    Cancel1.2%
    Flights249

Why flights run late

Delay causes

  • Airline24%
  • Weather13%
  • Air traffic (NAS)8%
  • Late aircraft55%
  • 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 → LFT

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 70% to 79% on time.

  • Afternoons79% on time · p90 60 min · 316 flights
  • Overnights75% on time · p90 45 min · 154 flights · limited
  • Middays72% on time · p90 110 min · 54 flights · limited
  • Evenings70% on time · p90 85 min · 125 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 66% to 88% on time.

  • Saturdays88% on time · p90 15 min · 95 flights · limited
  • Wednesdays82% on time · p90 65 min · 100 flights · limited
  • Thursdays78% on time · p90 60 min · 100 flights · limited
  • Tuesdays77% on time · p90 70 min · 101 flights · limited
  • Mondays72% on time · p90 100 min · 100 flights · limited
  • Fridays68% on time · p90 75 min · 103 flights · limited
  • Sundays66% on time · p90 70 min · 98 flights · limited
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Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.