OnTimeStats

Historical on-time performance

Montrose CO to Chicago

1,081 miData through May 2026Source: US DOT · BTS

Flights on MTJ–ORD arrive on time 65% of the time over the last 12 months.

On-time rate65%arrived within 15 min
p90 delay220 min1 in 10 flights is worse (tail risk)
Cancelled6.5%of scheduled flights

based on 31 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time65%
    Medianon time
    p90220 min
    Cancel6.5%
    Flights31

Why flights run late

Delay causes

  • Airline7%
  • Weather49%
  • Air traffic (NAS)11%
  • Late aircraft34%
  • 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 2 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.