OnTimeStats

Historical on-time performance

Atlanta to Colorado Springs

1,185 miData through Dec 2025Source: US DOT · BTS

Flights on ATL–COS arrive on time 76% of the time over the last 12 months.

On-time rate76%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.4%of scheduled flights

based on 514 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Delta Air Lines
    On-time76%
    Medianon time
    p9045 min
    Cancel1.4%
    Flights514

Why flights run late

Delay causes

  • Airline50%
  • Weather18%
  • Air traffic (NAS)16%
  • Late aircraft16%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly ATL → COS

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

Middays are the most reliable time of day to fly this route — 84% on time.

  • Middays84% on time · p90 25 min · 348 flights
  • Evenings73% on time · p90 50 min · 753 flights
  • Overnights62% on time · p90 75 min · 95 flights · limited

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 40 min · 160 flights · limited
  • Wednesdays80% on time · p90 25 min · 162 flights · limited
  • Saturdays77% on time · p90 50 min · 152 flights · limited
  • Thursdays76% on time · p90 40 min · 184 flights · limited
  • Fridays73% on time · p90 45 min · 186 flights · limited
  • Mondays72% on time · p90 45 min · 178 flights · limited
  • Sundays70% on time · p90 70 min · 189 flights · limited
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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.