OnTimeStats

Historical on-time performance

West Palm Beach to Philadelphia

951 miData through May 2026Source: US DOT · BTS

Flights on PBI–PHL arrive on time 76% of the time over the last 12 months.

On-time rate76%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled2.4%of scheduled flights

based on 1,421 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.

  • American Airlines
    On-time78%
    Medianon time
    p9050 min
    Cancel2.4%
    Flights1,271
  • Frontier Airlines
    On-time57%
    Median5 min
    p90155 min
    Cancel2.0%
    Flights150

Why flights run late

Delay causes

  • Airline33%
  • Weather9%
  • Air traffic (NAS)9%
  • Late aircraft49%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline12%
  • Weather76%
  • Air traffic (NAS)12%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 34 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 → PHL

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 — 89% on time.

  • Mornings89% on time · p90 10 min · 1,166 flights
  • Middays74% on time · p90 65 min · 1,439 flights
  • Overnights67% on time · p90 110 min · 162 flights · limited
  • Evenings62% on time · p90 115 min · 1,243 flights
  • Afternoons62% on time · p90 105 min · 796 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 68% to 78% on time.

  • Tuesdays78% on time · p90 70 min · 659 flights
  • Saturdays76% on time · p90 55 min · 672 flights
  • Wednesdays74% on time · p90 65 min · 648 flights
  • Mondays72% on time · p90 70 min · 706 flights
  • Thursdays70% on time · p90 70 min · 705 flights
  • Fridays69% on time · p90 90 min · 709 flights
  • Sundays68% on time · p90 90 min · 707 flights

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.