Best Time to Fly KOA to SMF: On-Time Stats by Hour & Airline
Ellison Onizuka Kona International at Keahole → Sacramento International
Data through July 2026 · Last updated October 18, 2026
521 flights were scheduled from Kona (KOA) to Sacramento (SMF) in the last 12 months, and 89.4% of those that flew arrived on time, 11.8 points above the US average of 77.6%.
Southwest Airlines was the most punctual of the 3 airlines on the route at 91.8%, while Alaska Airlines trailed at 83.3%.
August has been the best month (98% on time) and Wednesday the weakest day of the week (86%).
0.0% of flights were cancelled, versus 1.8% nationally.
KOA to SMF 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 |
|---|---|---|---|---|
| Southwest Airlines | 91.8% | 80 min | 0.0% | 365 |
| Hawaiian Airlines | 84.8% | 34 min | 0.0% | 66 |
| Alaska Airlines | 83.3% | 38 min | 0.0% | 90 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly KOA to SMF
On-time arrival % by scheduled departure hour (local time), 825 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 1 | |
| 9am–10am | 92.7% | 0.0% | 96 |
| 10am–11am | 93.3% | 0.0% | 480 |
| 11am–12pm | 85.2% | 0.0% | 88 |
| 12pm–1pm | 85.3% | 1.0% | 97 |
| 1pm–2pm | 68.2% | 0.0% | 63 |
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 SMF
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 | 13 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 28 | ||
| Summer peak (Jun 15 - Aug 15) | 93.8% | +4.7 pts | 0.0% | 161 |
| All other days | 89.1% | — | 0.2% | 623 |
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).