Best Time to Fly KOA to PDX: On-Time Stats by Hour & Airline
Ellison Onizuka Kona International at Keahole → Portland International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 80.8% of Kona (KOA) to Portland (PDX) flights arrived on time (365 scheduled flights). That is 3.2 points above the national average of 77.6%.
Alaska Airlines was the only reporting airline with regular flights on this route.
February has been the best month (89% on time) and Sunday the weakest day of the week (75%).
0.0% of flights were cancelled, versus 1.8% nationally.
KOA to PDX 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 |
|---|---|---|---|---|
| Alaska Airlines | 80.8% | 48 min | 0.0% | 365 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly KOA to PDX
On-time arrival % by scheduled departure hour (local time), 707 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 10am–11am | Limited data | 21 | |
| 11am–12pm | 87.7% | 0.0% | 154 |
| 12pm–1pm | 64.5% | 0.0% | 156 |
| 1pm–2pm | 75.1% | 0.0% | 181 |
| 2pm–3pm | 78.7% | 0.0% | 89 |
| 3pm–4pm | 94.3% | 0.0% | 106 |
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 PDX
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) | 83.3% | +1.2 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 66.1% | -16.0 pts | 0.0% | 124 |
| All other days | 82.2% | — | 0.0% | 539 |
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).