OnTimeStats

Historical on-time performance

West Palm Beach to Houston

956 miData through May 2026Source: US DOT · BTS

Flights on PBI–IAH arrive on time 84% of the time over the last 12 months.

On-time rate84%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights

based on 424 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlines
    On-time84%
    Medianon time
    p9030 min
    Cancel1.2%
    Flights424

Why flights run late

Delay causes

  • Airline32%
  • Weather2%
  • Air traffic (NAS)23%
  • Late aircraft43%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather80%
  • Air traffic (NAS)20%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 5 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 PBI → 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 — 90% on time.

  • Mornings90% on time · p90 5 min · 368 flights
  • Evenings71% on time · p90 80 min · 251 flights
  • Afternoons69% on time · p90 90 min · 412 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 68% to 85% on time.

  • Tuesdays85% on time · p90 25 min · 137 flights · limited
  • Wednesdays83% on time · p90 30 min · 149 flights · limited
  • Saturdays81% on time · p90 55 min · 138 flights · limited
  • Mondays78% on time · p90 55 min · 153 flights · limited
  • Thursdays76% on time · p90 85 min · 154 flights · limited
  • Fridays72% on time · p90 70 min · 156 flights · limited
  • Sundays68% on time · p90 70 min · 155 flights · limited

Keep exploring

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.