OnTimeStats

Historical on-time performance

Philadelphia to West Palm Beach

951 miData through May 2026Source: US DOT · BTS

Flights on PHL–PBI arrive on time 72% of the time over the last 12 months.

On-time rate72%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled2.7%of scheduled flights

based on 1,422 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-time73%
    Medianon time
    p9065 min
    Cancel2.5%
    Flights1,272
  • Frontier Airlines
    On-time61%
    Medianon time
    p9080 min
    Cancel4.7%
    Flights150

Why flights run late

Delay causes

  • Airline22%
  • Weather3%
  • Air traffic (NAS)23%
  • Late aircraft52%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline10%
  • Weather79%
  • Air traffic (NAS)10%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 39 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 PHL → PBI

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 61% to 77% on time.

  • Mornings77% on time · p90 45 min · 1,428 flights
  • Middays74% on time · p90 60 min · 981 flights
  • Overnights67% on time · p90 65 min · 240 flights
  • Afternoons65% on time · p90 95 min · 1,096 flights
  • Evenings61% on time · p90 90 min · 1,065 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 66% to 76% on time.

  • Tuesdays76% on time · p90 60 min · 660 flights
  • Wednesdays75% on time · p90 55 min · 650 flights
  • Saturdays73% on time · p90 75 min · 672 flights
  • Sundays69% on time · p90 85 min · 710 flights
  • Mondays67% on time · p90 75 min · 706 flights
  • Thursdays66% on time · p90 80 min · 704 flights
  • Fridays66% on time · p90 70 min · 708 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.