OnTimeStats

Historical on-time performance

Aspen to Austin

812 miData through May 2026Source: US DOT · BTS

Flights on ASE–AUS arrive on time 52% of the time over the last 12 months.

On-time rate52%arrived within 15 min
p90 delay145 min1 in 10 flights is worse (tail risk)
Cancelled16.1%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 Airlines
    On-time52%
    Medianon time
    p90145 min
    Cancel16.1%
    Flights93

Why flights run late

Delay causes

  • Airline9%
  • Weather50%
  • Air traffic (NAS)11%
  • Late aircraft30%
  • Security0%

Most delay minutes here are attributed to Weather.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather100%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 15 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

Keep exploring

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.