Columbia (COU) to Denver (DEN): On-Time Performance
Data through July 2026
Columbia (COU) to Denver (DEN) is a thinner route than most in this dataset — 309 departures over the past year, roughly 6 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 88% arrived on time, comfortably above the national average of 78%.
- On-time
- 88%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 1.3%
- Flights/day
- 0.85
- last 12 months
- Duration
- 2h 27m
- scheduled
- Distance
- 671 mi
Monthly on-time trend
Best time to fly from COU to DEN
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 86% | 11 min |
| Tuesday | 84% | 12 min |
| Wednesdaybest | 93% | 6 min |
| Thursday | 89% | 11 min |
| Friday | 87% | 14 min |
| Saturday | 86% | 12 min |
| Sunday | 93% | 5 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft13%
- Airline operations46%
- National airspace system34%
- Weather7%
Frequently asked questions
- How often are flights from COU to DEN delayed?
- 12% of COU–DEN 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 10 minutes.
- How long is the flight from COU to DEN?
- The scheduled COU–DEN flight time averages 2h 27m over 671 miles. Actual arrival times vary — flights on this route land 15+ minutes late 12% of the time.
- How often are COU to DEN flights cancelled?
- 1.3% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What day of the week is most reliable for COU to DEN?
- Wednesday flights have the best record at 93% on-time. Day-of-week differences on this route are meaningful — Tuesday trails at 84%.
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Based on 309 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.