OnTimeStats

Historical on-time performance

Phoenix to Austin

872 miData through Dec 2025Source: US DOT · BTS

Flights on PHX–AUS 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)
Cancelled0.5%of scheduled flights

based on 3,165 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.

  • American Airlines
    On-time77%
    Medianon time
    p9045 min
    Cancel0.5%
    Flights1,210
  • Southwest Airlines
    On-time78%
    Medianon time
    p9040 min
    Cancel0.6%
    Flights1,955

Why flights run late

Delay causes

  • Airline32%
  • Weather3%
  • Air traffic (NAS)16%
  • Late aircraft49%
  • 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 → AUS

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 — 90% on time.

  • Mornings90% on time · p90 10 min · 3,300 flights
  • Middays78% on time · p90 40 min · 2,284 flights
  • Afternoons72% on time · p90 50 min · 2,086 flights
  • Evenings70% on time · p90 50 min · 1,960 flights
  • Overnights66% on time · p90 60 min · 451 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 75% to 84% on time.

  • Tuesdays84% on time · p90 25 min · 1,402 flights
  • Wednesdays82% on time · p90 35 min · 1,430 flights
  • Saturdays81% on time · p90 30 min · 1,145 flights
  • Mondays78% on time · p90 40 min · 1,543 flights
  • Sundays77% on time · p90 45 min · 1,501 flights
  • Thursdays76% on time · p90 40 min · 1,519 flights
  • Fridays75% on time · p90 45 min · 1,551 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.