OnTimeStats

Historical on-time performance

Austin to Newark

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

Flights on AUS–EWR arrive on time 72% of the time over the last 12 months.

On-time rate72%arrived within 15 min
p90 delay95 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights

based on 1,771 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
    p9085 min
    Cancel1.3%
    Flights1,652
  • Spirit Airlines
    On-time46%
    Median20 min
    p90145 min
    Cancel5.0%
    Flights119

Why flights run late

Delay causes

  • Airline19%
  • Weather3%
  • Air traffic (NAS)60%
  • Late aircraft18%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly AUS → EWR

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 — 87% on time.

  • Mornings87% on time · p90 15 min · 1,847 flights
  • Middays72% on time · p90 60 min · 1,481 flights
  • Evenings71% on time · p90 90 min · 1,157 flights
  • Afternoons64% on time · p90 105 min · 1,438 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 70% to 80% on time.

  • Tuesdays80% on time · p90 35 min · 878 flights
  • Wednesdays80% on time · p90 50 min · 877 flights
  • Saturdays75% on time · p90 70 min · 759 flights
  • Mondays73% on time · p90 60 min · 888 flights
  • Fridays73% on time · p90 65 min · 866 flights
  • Thursdays70% on time · p90 90 min · 881 flights
  • Sundays70% on time · p90 90 min · 808 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.