OnTimeStats

Historical on-time performance

ASEAUS

Aspen to Austin

812 miData through Dec 2025Source: US DOT · BTS

Flights on ASE–AUS arrive on time 47% of the time over the last 12 months.

On-time rate47%arrived within 15 min
Median delay10 mintypical arrival
p90 delay100 min1 in 10 flights is worsetail risk
Cancelled9.7%of scheduled flights

based on 93 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlinesbest
    On-time47%
    Median10 min
    p90100 min
    Cancel9.7%
    Flights93

Why flights run late

Delay causes

  • Airline15%
  • Weather64%
  • Air traffic (NAS)15%
  • Late aircraft7%
  • Security0%

Most delay minutes here are attributed to Weather.

Over time

On-time trend

By season

On-time rate by month

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Related pages

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.