OnTimeStats

Historical on-time performance

Newark to Austin

1,504 miData through Dec 2025Source: US DOT · BTS

Flights on EWR–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)
Cancelled1.5%of scheduled flights

based on 1,773 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlinesbest
    On-time74%
    Medianon time
    p9060 min
    Cancel1.1%
    Flights1,653
  • Spirit Airlines
    On-time58%
    Medianon time
    p9075 min
    Cancel5.8%
    Flights120

Why flights run late

Delay causes

  • Airline23%
  • Weather7%
  • Air traffic (NAS)25%
  • Late aircraft45%
  • 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 EWR → 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 — 84% on time.

  • Mornings84% on time · p90 25 min · 1,616 flights
  • Middays78% on time · p90 35 min · 1,532 flights
  • Afternoons67% on time · p90 85 min · 1,149 flights
  • Evenings67% on time · p90 95 min · 848 flights
  • Overnights60% on time · p90 80 min · 808 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 69% to 78% on time.

  • Tuesdays78% on time · p90 35 min · 881 flights
  • Wednesdays77% on time · p90 45 min · 877 flights
  • Mondays77% on time · p90 50 min · 893 flights
  • Saturdays73% on time · p90 65 min · 742 flights
  • Thursdays70% on time · p90 60 min · 882 flights
  • Fridays70% on time · p90 60 min · 864 flights
  • Sundays69% on time · p90 70 min · 814 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.