Colorado Springs (COS) to Phoenix (PHX): On-Time Performance
Data through July 2026
The calendar drives reliability on COS–PHX. March 2026 flights landed on schedule 96% of the time, but June 2026 dropped to 69% — a gap of 27 points. Across the full period the route averages 83% on-time against a national 78%. Morning departures also hold up better than evening ones (92% vs 73%), which matters most in the rough months.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 0.2%
- Flights/day
- 2.7
- last 12 months
- Duration
- 1h 55m
- scheduled
- Distance
- 551 mi
Monthly on-time trend
Best time to fly from COS to PHX
Aim for departures around 5 a.m. (96% on-time); avoid 9 p.m. departures (54%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 13 min |
| Tuesday | 87% | 8 min |
| Wednesday | 81% | 13 min |
| Thursday | 81% | 11 min |
| Friday | 82% | 13 min |
| Saturdaybest | 88% | 8 min |
| Sunday | 83% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft59%
- Airline operations23%
- National airspace system16%
- Weather3%
Frequently asked questions
- How often are flights from COS to PHX delayed?
- 17% of COS–PHX flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 11 minutes.
- What is the best time of day to fly from COS to PHX?
- Departures around 5 a.m. have the best record (96% on-time), while departures around 9 p.m. have the worst (54%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from COS to PHX?
- The scheduled COS–PHX flight time averages 1h 55m over 551 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are COS to PHX flights cancelled?
- 0.2% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from COS to PHX?
- June 2026 was the roughest month in this dataset, with only 69% of arrivals on time. The best was March 2026 at 96%. If your dates are flexible, that 27-point gap is worth planning around.
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Based on 2,044 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.