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Route Reliability

Colorado Springs → Las Vegas

COS–LAS · 604 miles · Colorado Springs Airport to Harry Reid International Airport

88
Pretty Reliable
WanderNerd Reliability Score
80%
Arrive within 15 minutes
4 min
Average arrival delay
0%
Cancelled
860
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 80% of the time across 860 flights. No comparison to make.

What the data says

Morning flights do better here.

COS–LAS flights departing between 6–9 AM arrived on time 97% of the time, versus 67% between 6–9 PM.

Friday is doing you no favors.

COS–LAS flights arrived on time 87% of the time on Saturdays. On Fridays: 73%.

It basically never cancels.

Out of 860 scheduled flights, only 0.0% were cancelled.

Flights on this route

The breakdown

On-time by weekday
  • Mon83%(141 flights)
  • Tue82%(104 flights)
  • Wed81%(104 flights)
  • Thu79%(141 flights)
  • Fri73%(141 flights)
  • Sat87%(91 flights)
  • Sun82%(137 flights)
On-time by departure window
  • 3–6 AM97%(60 flights)
  • 6–9 AM97%(264 flights)
  • 9 AM–12 PM75%(81 flights)
  • 12–3 PM73%(146 flights)
  • 3–6 PM71%(86 flights)
  • 6–9 PM67%(222 flights)
On-time trend by month
82%
May

Jun 76% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%74
July 202573%73
August 202580%75
September 202581%73
October 202576%75
November 202579%71
December 202576%66
January 202679%63
February 202693%56
March 202685%78
April 202688%77
May 202682%78

Keep nerding

Based on 860 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.