OnTimeStats

Historical on-time performance

Dallas to Colorado Springs

602 miData through Dec 2025Source: US DOT · BTS

Flights on DAL–COS arrive on time 75% of the time over the last 12 months.

On-time rate75%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights

based on 883 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time75%
    Medianon time
    p9050 min
    Cancel0.7%
    Flights883

Why flights run late

Delay causes

  • Airline26%
  • Weather3%
  • Air traffic (NAS)12%
  • Late aircraft59%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly DAL → COS

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

Best time of day

Mornings are the most reliable time of day to fly this route — 91% on time.

  • Mornings91% on time · p90 10 min · 594 flights
  • Middays85% on time · p90 20 min · 579 flights
  • Evenings73% on time · p90 45 min · 338 flights
  • Afternoons72% on time · p90 35 min · 541 flights
  • Overnights61% on time · p90 65 min · 704 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 81% on time.

  • Tuesdays81% on time · p90 30 min · 389 flights
  • Saturdays80% on time · p90 45 min · 253 flights
  • Mondays76% on time · p90 40 min · 460 flights
  • Sundays76% on time · p90 40 min · 357 flights
  • Wednesdays75% on time · p90 45 min · 386 flights
  • Fridays74% on time · p90 40 min · 459 flights
  • Thursdays73% on time · p90 50 min · 452 flights
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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.