OnTimeStats

Historical on-time performance

RAPORD

Rapid City to Chicago

780 miData through Dec 2025Source: US DOT · BTS

Flights on RAP–ORD arrive on time 68% of the time over the last 12 months.

On-time rate68%arrived within 15 min
Median delayon timetypical arrival
p90 delay55 min1 in 10 flights is worsetail risk
Cancelled1.4%of scheduled flights

based on 485 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airwaysbest
    On-time90%
    Medianon time
    p90on time
    Cancel0.0%
    Flights30
  • United Airlines
    On-time73%
    Medianon time
    p9055 min
    Cancel1.3%
    Flights160
  • SkyWest Airlines
    On-time68%
    Medianon time
    p9045 min
    Cancel1.9%
    Flights104
  • Envoy Air
    On-time60%
    Median5 min
    p9060 min
    Cancel1.6%
    Flights191

Why flights run late

Delay causes

  • Airline19%
  • Weather10%
  • Air traffic (NAS)31%
  • Late aircraft40%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

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.