Colorado Springs (COS) to Salt Lake City (SLC): On-Time Performance
Data through May 2026
When you fly COS to SLC matters as much as anything else about the booking: the route swung from 100% on-time in June 2024 to just 81% in January 2025. Across the full period the route averages 93% on-time against a national 78%. Morning departures also hold up better than evening ones (95% vs 85%), which matters most in the rough months.
- On-time
- 93%
- arrived <15 min late
- Avg delay
- 6 min
- completed flights
- Cancelled
- 0.1%
- Flights/day
- 1.9
- last 12 months
- Duration
- 1h 58m
- scheduled
- Distance
- 411 mi
Monthly on-time trend
Best time to fly from COS to SLC
Aim for departures around 11 a.m. (96% on-time); avoid 5 p.m. departures (84%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 95% | 8 min |
| Tuesday | 93% | 4 min |
| Wednesday | 94% | 12 min |
| Thursday | 94% | 7 min |
| Friday | 92% | 6 min |
| Saturday | 93% | 4 min |
| Sunday | 91% | 4 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Airline operations68%
- National airspace system2%
- Weather30%
Frequently asked questions
- How often are flights from COS to SLC delayed?
- 7% of COS–SLC flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 6 minutes.
- What is the best time of day to fly from COS to SLC?
- Departures around 11 a.m. have the best record (96% on-time), while departures around 5 p.m. have the worst (84%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from COS to SLC?
- The scheduled COS–SLC flight time averages 1h 58m over 411 miles. Actual arrival times vary — flights on this route land 15+ minutes late 7% of the time.
- How often are COS to SLC flights cancelled?
- 0.1% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from COS to SLC?
- January 2025 was the roughest month in this dataset, with only 81% of arrivals on time. The best was June 2024 at 100%. If your dates are flexible, that 19-point gap is worth planning around.
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Based on 1,051 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.