OnTimeStats

Historical on-time performance

Philadelphia to Austin

1,430 miData through Dec 2025Source: US DOT · BTS

Flights on PHL–AUS arrive on time 73% of the time over the last 12 months.

On-time rate73%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights

based on 1,078 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • American Airlines
    On-time73%
    Medianon time
    p9060 min
    Cancel1.6%
    Flights1,078

Why flights run late

Delay causes

  • Airline34%
  • Weather3%
  • Air traffic (NAS)19%
  • Late aircraft44%
  • 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 → AUS

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 64% to 79% on time.

  • Mornings79% on time · p90 35 min · 939 flights
  • Middays79% on time · p90 50 min · 857 flights
  • Afternoons68% on time · p90 75 min · 134 flights · limited
  • Evenings66% on time · p90 75 min · 975 flights
  • Overnights64% on time · p90 65 min · 75 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 68% to 80% on time.

  • Tuesdays80% on time · p90 35 min · 415 flights
  • Wednesdays78% on time · p90 40 min · 413 flights
  • Saturdays76% on time · p90 60 min · 325 flights
  • Fridays74% on time · p90 50 min · 440 flights
  • Thursdays72% on time · p90 65 min · 461 flights
  • Mondays72% on time · p90 70 min · 457 flights
  • Sundays68% on time · p90 70 min · 469 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.