SPN to GUM flight delays
Saipan, TT (SPN) Guam, TT (GUM) · 129 miles
732 flights · July 2024 – July 2026 · US Bureau of Transportation Statistics
90.87%
Arrived on time
Within 15 minutes of schedule
1.23%
Cancelled
Share of scheduled flights
103 min
When late, late by
Average across delayed arrivals
10 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In December it ran 37.5 points more punctual than in April — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 103 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
Flights from Saipan to Guam are among the most dependable in the record. A route this punctual is usually a short hop between airports with slots to spare.
Only United Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Which airline should you fly on this route?
Over July 2024 – July 2026, United Airlines arrived on time most often on SPN to GUM. Flights ran closest to schedule in December and worst in April.
Every airline on SPN to GUM
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| United Airlines | 732 | 90.87% | 1.23% | 103 min | A |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
GUM to SPN Guam back to Saipan 93.22% on time ACommon questions
Are flights from Saipan to Guam usually delayed?
90.87% of flights on the SPN to GUM route arrived within 15 minutes of schedule, so roughly 1 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Saipan to Guam?
Only United Airlines appears in the published record on this route, with 732 flights and 90.87% arriving on time.
How often are SPN to GUM flights cancelled?
1.23% of scheduled flights did not operate — about 12 in every thousand. That is in the normal range.
What is the best month to fly Saipan to Guam?
December, when 100% of flights arrived on time. The worst was April at 62.5%.
When SPN to GUM flights are late, how late are they?
About 103 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on SPN to GUM during July 2024 – July 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →