Best Time to Fly KOA to PHX: On-Time Stats by Hour & Airline
Ellison Onizuka Kona International at Keahole → Phoenix Sky Harbor International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 94.2% of Kona (KOA) to Phoenix (PHX) flights arrived on time (384 scheduled flights). That is 16.6 points above the national average of 77.6%.
American Airlines was the only reporting airline with regular flights on this route.
August has been the best month (98% on time) and Thursday the weakest day of the week (89%).
1.0% of flights were cancelled, versus 1.8% nationally.
KOA to PHX 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 |
|---|---|---|---|---|
| American Airlines | 94.2% | 178 min | 1.0% | 384 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly KOA to PHX
On-time arrival % by scheduled departure hour (local time), 767 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8pm–9pm | Limited data | 19 | |
| 9pm–10pm | 93.3% | 0.6% | 638 |
| 10pm–11pm | 90.6% | 1.9% | 108 |
| 11pm–12am | Limited data | 2 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on KOA to PHX
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) | 88.3% | -4.6 pts | 0.0% | 60 |
| Summer peak (Jun 15 - Aug 15) | 95.0% | +2.1 pts | 1.6% | 124 |
| All other days | 92.9% | — | 0.7% | 569 |
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).