Kona (KOA) to Denver (DEN): On-Time Performance
Data through July 2026
The calendar drives reliability on KOA–DEN. May 2026 flights landed on schedule 100% of the time, but March 2026 dropped to 61% — a gap of 39 points. Across the full period the route averages 91% on-time against a national 78%.
- On-time
- 91%
- arrived <15 min late
- Avg delay
- 8 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 1.0
- last 12 months
- Duration
- 6h 40m
- scheduled
- Distance
- 3,329 mi
Monthly on-time trend
Best time to fly from KOA to DEN
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 92% | 7 min |
| Tuesday | 92% | 5 min |
| Wednesdaybest | 94% | 5 min |
| Thursday | 89% | 15 min |
| Friday | 88% | 9 min |
| Saturday | 89% | 5 min |
| Sunday | 90% | 8 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft29%
- Airline operations57%
- National airspace system14%
Frequently asked questions
- How often are flights from KOA to DEN delayed?
- 10% of KOA–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 8 minutes.
- How long is the flight from KOA to DEN?
- The scheduled KOA–DEN flight time averages 6h 40m over 3,329 miles. Actual arrival times vary — flights on this route land 15+ minutes late 10% of the time.
- How often are KOA to DEN flights cancelled?
- 1.4% 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 KOA to DEN?
- March 2026 was the roughest month in this dataset, with only 61% of arrivals on time. The best was May 2026 at 100%. If your dates are flexible, that 39-point gap is worth planning around.
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Based on 766 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.