GUM to SPN flight delays & on-time performance
Nonstop flights from Antonio B. Won Pat International Airport to Saipan International Airport · 129 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at GUM or SPN right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Guam (GUM) to Saipan (SPN) arrived on time 90% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 2.7% were cancelled, and 2% arrived an hour or more late.
- United Airlines is the only airline reporting nonstop flights on this route.
- Tuesday was the most reliable day to fly (98% on time) and Wednesday the least (84%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (63%).
Which airline is most on time from GUM to SPN?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| United Airlines | 90% | 2.7% | 5 min | 1.7% | 365 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
Not enough departures across different hours to compare.
Best day of the week
On-time arrival rate by day of departure.
- Monday86%5.8% cancelled
- Tuesday98%3.8% cancelled
- Wednesday84%1.9% cancelled
- Thursday90%1.9% cancelled
- Friday94%1.9% cancelled
- Saturday88%1.9% cancelled
- Sunday90%1.9% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)63%
- Late-arriving aircraft17%
- Air traffic control & airport congestion11%
- Extreme weather9%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather90%
- Airline (crew, maintenance, cleaning, fueling)10%
- Air traffic control & airport congestion0%
- Security0%
GUM to SPN: common questions
- How often are GUM to SPN flights on time?
- 90% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Guam to Saipan cancelled?
- 2.7% of scheduled flights were cancelled (10 of 365).
- How long are typical delays?
- Across all flights the average arrival delay was 5 min (early arrivals count as zero). Flights that were late arrived 47 min behind schedule on average, and 1.7% of flights were an hour or more late.
- How long is taxi time at GUM?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
More flights to Saipan
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: GUM → SPN, nonstop flights by US airlines that report to the DOT. How we calculate this.