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Route Reliability

Colorado Springs → Phoenix

COS–PHX · 551 miles · Colorado Springs Airport to Phoenix Sky Harbor International Airport

89
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
3 min
Average arrival delay
0.2%
Cancelled
993
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 83% of the time across 993 flights. No comparison to make.

What the data says

Morning flights do better here.

COS–PHX flights departing between 3–6 AM arrived on time 95% of the time, versus 72% between 6–9 PM.

Sunday scaries are real for this one.

COS–PHX flights arrived on time 91% of the time on Saturdays. On Sundays: 78%.

It basically never cancels.

Out of 993 scheduled flights, only 0.2% were cancelled.

Ticking up lately.

COS–PHX flights arrived on time 89% of the time over the last three months in the data, compared with 84% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon84%(151 flights)
  • Tue86%(139 flights)
  • Wed85%(138 flights)
  • Thu80%(152 flights)
  • Fri81%(149 flights)
  • Sat91%(112 flights)
  • Sun78%(147 flights)
On-time by departure window
  • 3–6 AM95%(82 flights)
  • 6–9 AM94%(250 flights)
  • 9 AM–12 PM88%(125 flights)
  • 12–3 PM81%(142 flights)
  • 3–6 PM74%(190 flights)
  • 6–9 PM72%(190 flights)
  • 9 PM–12 AM—(9 flights)
On-time trend by month
80%
May

Jun 77% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%81
July 202580%84
August 202583%77
September 202585%75
October 202579%86
November 202576%86
December 202571%91
January 202690%72
February 202690%70
March 202696%91
April 202693%87
May 202680%88

Keep nerding

Based on 993 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.