OnTimeStats

Historical on-time performance

Phoenix to Memphis

1,263 miData through Dec 2025Source: US DOT · BTS

Flights on PHX–MEM arrive on time 69% of the time over the last 12 months.

On-time rate69%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights

based on 278 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlinesbest
    On-time87%
    Medianon time
    p9020 min
    Cancel1.7%
    Flights60
  • American Airlines
    On-time63%
    Median5 min
    p9085 min
    Cancel0.0%
    Flights154
  • Envoy Air
    On-time66%
    Medianon time
    p9040 min
    Cancel1.6%
    Flights64

Why flights run late

Delay causes

  • Airline35%
  • Weather2%
  • Air traffic (NAS)12%
  • Late aircraft50%
  • 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 PHX → 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 67% to 86% on time.

  • Mornings86% on time · p90 20 min · 74 flights · limited
  • Middays83% on time · p90 25 min · 157 flights · limited
  • Afternoons75% on time · p90 30 min · 119 flights · limited
  • Evenings68% on time · p90 60 min · 943 flights
  • Overnights67% on time · p90 75 min · 108 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 66% to 80% on time.

  • Saturdays80% on time · p90 30 min · 195 flights · limited
  • Tuesdays75% on time · p90 40 min · 171 flights · limited
  • Wednesdays74% on time · p90 50 min · 174 flights · limited
  • Fridays72% on time · p90 50 min · 209 flights
  • Sundays69% on time · p90 60 min · 233 flights
  • Thursdays66% on time · p90 65 min · 208 flights
  • Mondays66% on time · p90 65 min · 213 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.