OnTimeStats

Historical on-time performance

West Palm Beach to Houston

956 miData through Dec 2025Source: US DOT · BTS

Flights on PBI–IAH arrive on time 77% of the time over the last 12 months.

On-time rate77%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights

based on 328 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlines
    On-time77%
    Medianon time
    p9060 min
    Cancel0.6%
    Flights328

Why flights run late

Delay causes

  • Airline28%
  • Weather3%
  • Air traffic (NAS)18%
  • Late aircraft51%
  • 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 PBI → 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 — 87% on time.

  • Mornings87% on time · p90 15 min · 230 flights
  • Evenings73% on time · p90 75 min · 191 flights · limited
  • Afternoons66% on time · p90 105 min · 472 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 61% to 84% on time.

  • Tuesdays84% on time · p90 35 min · 128 flights · limited
  • Saturdays79% on time · p90 55 min · 127 flights · limited
  • Wednesdays79% on time · p90 45 min · 126 flights · limited
  • Mondays73% on time · p90 75 min · 130 flights · limited
  • Thursdays70% on time · p90 90 min · 128 flights · limited
  • Fridays68% on time · p90 65 min · 130 flights · limited
  • Sundays61% on time · p90 80 min · 132 flights · limited
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Related pages

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.