Best Time to Fly HNL to GUM: On-Time Stats by Hour & Airline
Daniel K Inouye International → Guam International
Data through July 2026 · Last updated October 18, 2026
365 flights were scheduled from Honolulu (HNL) to Guam (GUM) in the last 12 months, and 81.6% of those that flew arrived on time, 4.0 points above the US average of 77.6%.
United Airlines was the only reporting airline with regular flights on this route.
June has been the best month (93% on time) and Friday the weakest day of the week (79%).
1.6% of flights were cancelled, versus 1.8% nationally.
HNL to GUM 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 | 81.6% | 55 min | 1.6% | 365 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly HNL to GUM
On-time arrival % by scheduled departure hour (local time), 730 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 2pm–3pm | 86.5% | 1.9% | 422 |
| 3pm–4pm | 78.5% | 0.3% | 308 |
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 GUM
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) | 86.7% | +3.8 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 82.0% | -0.9 pts | 1.6% | 124 |
| All other days | 82.9% | — | 1.2% | 562 |
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).