OnTimeStats

Historical on-time performance

Philadelphia to Dayton

477 miData through Dec 2025Source: US DOT · BTS

Flights on PHL–DAY arrive on time 64% of the time over the last 12 months.

On-time rate64%arrived within 15 min
p90 delay100 min1 in 10 flights is worse (tail risk)
Cancelled3.7%of scheduled flights

based on 188 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • PSA Airlines
    On-time64%
    Medianon time
    p90100 min
    Cancel3.7%
    Flights188

Why flights run late

Delay causes

  • Airline24%
  • Weather5%
  • Air traffic (NAS)9%
  • Late aircraft61%
  • 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 → DAY

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 68% to 77% on time.

  • Overnights77% on time · p90 75 min · 70 flights · limited
  • Evenings68% on time · p90 70 min · 355 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 64% to 80% on time.

  • Wednesdays80% on time · p90 30 min · 71 flights · limited
  • Tuesdays78% on time · p90 30 min · 63 flights · limited
  • Saturdays70% on time · p90 65 min · 71 flights · limited
  • Sundays69% on time · p90 70 min · 68 flights · limited
  • Thursdays69% on time · p90 65 min · 67 flights · limited
  • Mondays69% on time · p90 95 min · 67 flights · limited
  • Fridays64% on time · p90 95 min · 66 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.