OnTimeStats

Historical on-time performance

Memphis to Philadelphia

874 miData through Dec 2025Source: US DOT · BTS

Flights on MEM–PHL arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled3.6%of scheduled flights

based on 617 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • Republic Airways
    On-time78%
    Medianon time
    p9040 min
    Cancel1.1%
    Flights93
  • PSA Airlines
    On-time78%
    Medianon time
    p9040 min
    Cancel4.0%
    Flights524

Why flights run late

Delay causes

  • Airline40%
  • Weather4%
  • Air traffic (NAS)15%
  • Late aircraft41%
  • 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 MEM → PHL

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

Mornings are the most reliable time of day to fly this route — 87% on time.

  • Mornings87% on time · p90 15 min · 692 flights
  • Afternoons80% on time · p90 30 min · 321 flights
  • Middays78% on time · p90 45 min · 827 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 78% to 85% on time.

  • Sundays85% on time · p90 20 min · 275 flights
  • Tuesdays83% on time · p90 30 min · 244 flights
  • Saturdays83% on time · p90 25 min · 250 flights
  • Thursdays82% on time · p90 30 min · 266 flights
  • Wednesdays82% on time · p90 30 min · 267 flights
  • Fridays80% on time · p90 40 min · 274 flights
  • Mondays78% on time · p90 35 min · 274 flights
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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.