Best Time to Fly GUM to SPN: On-Time Stats by Hour & Airline
Guam International → Francisco C. Ada Saipan International
Data through July 2026 · Last updated October 18, 2026
365 flights were scheduled from Guam (GUM) to Saipan (SPN) in the last 12 months, and 90.1% of those that flew arrived on time, 12.5 points above the US average of 77.6%.
United Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (98% on time) and March the worst month (86%).
The cancellation rate was 2.7% (US average 1.8%).
GUM to SPN 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 | 90.1% | 47 min | 2.7% | 365 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly GUM to SPN
On-time arrival % by scheduled departure hour (local time), 732 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 92.9% | 1.6% | 728 |
| 1pm–2pm | Limited data | 2 | |
| 8pm–9pm | 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 GUM to SPN
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) | 93.3% | +0.9 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 93.4% | +1.0 pts | 2.4% | 124 |
| All other days | 92.4% | — | 1.6% | 564 |
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).