OnTimeStats

Historical on-time performance

Philadelphia to Memphis

874 miData through Dec 2025Source: US DOT · BTS

Flights on PHL–MEM arrive on time 70% of the time over the last 12 months.

On-time rate70%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled4.1%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-time73%
    Medianon time
    p9070 min
    Cancel4.3%
    Flights94
  • PSA Airlines
    On-time69%
    Medianon time
    p9070 min
    Cancel4.0%
    Flights523

Why flights run late

Delay causes

  • Airline21%
  • Weather4%
  • Air traffic (NAS)16%
  • Late aircraft58%
  • 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 → MEM

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 58% to 87% on time.

  • Middays87% on time · p90 20 min · 621 flights
  • Mornings86% on time · p90 20 min · 331 flights
  • Afternoons85% on time · p90 25 min · 220 flights
  • Evenings62% on time · p90 80 min · 526 flights
  • Overnights58% on time · p90 95 min · 153 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 80% on time.

  • Tuesdays80% on time · p90 30 min · 244 flights
  • Thursdays78% on time · p90 35 min · 269 flights
  • Sundays78% on time · p90 50 min · 273 flights
  • Wednesdays78% on time · p90 35 min · 268 flights
  • Saturdays77% on time · p90 70 min · 250 flights
  • Mondays74% on time · p90 55 min · 275 flights
  • Fridays74% on time · p90 55 min · 272 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.