OnTimeStats

Historical on-time performance

Las Vegas to Colorado Springs

604 miData through May 2026Source: US DOT · BTS

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

On-time rate76%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights

based on 860 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time76%
    Medianon time
    p9040 min
    Cancel0.3%
    Flights860

Why flights run late

Delay causes

  • Airline24%
  • Weather1%
  • Air traffic (NAS)9%
  • Late aircraft65%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather67%
  • Air traffic (NAS)33%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 3 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly LAS → COS

All airlines · rolling 36 months (2023-06 .. 2026-05).

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 · 691 flights
  • Middays80% on time · p90 25 min · 440 flights
  • Evenings79% on time · p90 35 min · 452 flights
  • Afternoons63% on time · p90 55 min · 553 flights
  • Overnights63% on time · p90 60 min · 659 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 68% to 85% on time.

  • Saturdays85% on time · p90 25 min · 271 flights
  • Tuesdays83% on time · p90 25 min · 369 flights
  • Wednesdays81% on time · p90 25 min · 369 flights
  • Mondays75% on time · p90 40 min · 456 flights
  • Thursdays70% on time · p90 50 min · 455 flights
  • Fridays70% on time · p90 55 min · 464 flights
  • Sundays68% on time · p90 45 min · 411 flights

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.