Best Time to Fly DEN to KOA: On-Time Stats by Hour & Airline
Denver International → Ellison Onizuka Kona International at Keahole
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 84.4% of Denver (DEN) to Kona (KOA) flights arrived on time (370 scheduled flights). That is 6.8 points above the national average of 77.6%.
United Airlines was the only reporting airline with regular flights on this route.
January has been the best month (95% on time) and Saturday the weakest day of the week (81%).
0.8% of flights were cancelled, versus 1.8% nationally.
DEN to KOA on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| United Airlines | 84.4% | 77 min | 0.8% | 370 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DEN to KOA
On-time arrival % by scheduled departure hour (local time), 735 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12pm–1pm | 84.9% | 0.4% | 730 |
| 3pm–4pm | Limited data | 2 | |
| 4pm–5pm | Limited data | 3 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DEN to KOA
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 14 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 70.0% | -15.2 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 85.2% | +0.0 pts | 0.0% | 124 |
| All other days | 85.2% | — | 0.7% | 567 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).