OnTimeStats

Historical on-time performance

Philadelphia to Lexington KY

520 miData through Dec 2025Source: US DOT · BTS

Flights on PHL–LEX arrive on time 75% of the time over the last 12 months.

On-time rate75%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled3.8%of scheduled flights

based on 265 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • PSA Airlines
    On-time75%
    Medianon time
    p9050 min
    Cancel3.8%
    Flights265

Why flights run late

Delay causes

  • Airline32%
  • Weather1%
  • Air traffic (NAS)21%
  • Late aircraft47%
  • 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 PHL → LEX

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 66% to 89% on time.

  • Mornings89% on time · p90 on time · 61 flights · limited
  • Middays85% on time · p90 20 min · 131 flights · limited
  • Overnights68% on time · p90 35 min · 53 flights · limited
  • Afternoons66% on time · p90 70 min · 157 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 69% to 85% on time.

  • Wednesdays85% on time · p90 25 min · 61 flights · limited
  • Sundays83% on time · p90 30 min · 58 flights · limited
  • Tuesdays75% on time · p90 65 min · 55 flights · limited
  • Thursdays74% on time · p90 35 min · 57 flights · limited
  • Fridays73% on time · p90 105 min · 60 flights · limited
  • Mondays72% on time · p90 45 min · 61 flights · limited
  • Saturdays69% on time · p90 70 min · 55 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.