Guam (GUM) to Saipan (SPN): On-Time Performance
Data through July 2026
Guam (GUM) to Saipan (SPN) effectively runs on two schedules. In September 2024, 100% of arrivals were on time; in November 2025 that fell to 80% — a 20-point seasonal swing. Across the full period the route averages 93% on-time against a national 78%.
- On-time
- 93%
- arrived <15 min late
- Avg delay
- 5 min
- completed flights
- Cancelled
- 1.6%
- Flights/day
- 1.0
- last 12 months
- Duration
- 46m
- scheduled
- Distance
- 129 mi
Monthly on-time trend
Best time to fly from GUM to SPN
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 93% | 4 min |
| Tuesdaybest | 98% | 1 min |
| Wednesday | 88% | 9 min |
| Thursday | 92% | 14 min |
| Friday | 96% | 2 min |
| Saturday | 90% | 5 min |
| Sunday | 94% | 3 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft42%
- Airline operations48%
- National airspace system7%
- Weather4%
Frequently asked questions
- How often are flights from GUM to SPN delayed?
- 7% of GUM–SPN flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 5 minutes.
- How long is the flight from GUM to SPN?
- The scheduled GUM–SPN flight time averages 46m over 129 miles. Actual arrival times vary — flights on this route land 15+ minutes late 7% of the time.
- How often are GUM to SPN flights cancelled?
- 1.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from GUM to SPN?
- November 2025 was the roughest month in this dataset, with only 80% of arrivals on time. The best was September 2024 at 100%. If your dates are flexible, that 20-point gap is worth planning around.
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Based on 763 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.