Best Time to Fly HNL to ONT: On-Time Stats by Hour & Airline
Daniel K Inouye International → Ontario International
Data through July 2026 · Last updated October 18, 2026
423 flights were scheduled from Honolulu (HNL) to Ontario (ONT) in the last 12 months, and 76.5% of those that flew arrived on time, 1.1 points below the US average of 77.6%.
Southwest Airlines was the most punctual of the 2 airlines on the route at 91.4%, while Alaska Airlines trailed at 74.2%.
August has been the best month (89% on time) and Friday the weakest day of the week (72%).
0.2% of flights were cancelled, versus 1.8% nationally.
HNL to ONT 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 | 91.4% | 43 min | 0.0% | 58 |
| Alaska Airlines | 74.2% | 62 min | 0.3% | 365 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly HNL to ONT
On-time arrival % by scheduled departure hour (local time), 788 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | Limited data | 7 | |
| 9am–10am | Limited data | 19 | |
| 11am–12pm | Limited data | 1 | |
| 12pm–1pm | 79.6% | 0.3% | 305 |
| 1pm–2pm | 70.6% | 0.0% | 214 |
| 2pm–3pm | 72.3% | 0.4% | 240 |
| 3pm–4pm | 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 HNL to ONT
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) | 63.3% | -10.2 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 80.1% | +6.6 pts | 0.0% | 171 |
| All other days | 73.5% | — | 0.3% | 573 |
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).