BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
SPN→GUM

Saipan, TT (SPN) to Guam, TT (GUM) flight delay odds

85.8% of 365 official scheduled SPN-to-GUM flights arrived on time; 6.3% arrived at least 30 minutes late and 1.9% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
85.8%arrived on time
6.3%30+ min late
1.9%cancelled
365scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late2.7%all scheduled flights
120+ minutes late1.9%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+2.5 mincompleted flights

Which departure time was most reliable for SPN to GUM?

Among qualifying SPN-to-GUM departure window results, Late morning had the highest on-time rate: 87.3% of 300 flights. Early morning was lowest at 79.4% across 63 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning6379.4%12.7%4.8%
Late morning30087.3%4.7%1.3%

Which weekday was most reliable for SPN to GUM?

Among qualifying SPN-to-GUM weekday results, Sunday had the highest on-time rate: 92.3% of 52 flights. Saturday was lowest at 78.8% across 52 flights.

DayFlightsOn time30+ minCancelled
Monday5282.7%5.8%3.8%
Tuesday5386.8%3.8%1.9%
Wednesday5282.7%13.5%1.9%
Thursday5286.5%5.8%1.9%
Friday5290.4%5.8%1.9%
Saturday5278.8%3.8%1.9%
Sunday5292.3%5.8%0.0%

Which airline was most reliable for SPN to GUM?

Only United Airlines met the SPN-to-GUM airline threshold: 85.8% of 365 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
United Airlines36585.8%6.3%1.9%

Which month was most reliable for SPN to GUM?

Among qualifying SPN-to-GUM month results, September 2025 had the highest on-time rate: 96.7% of 30 flights. April 2026 was lowest at 50.0% across 30 flights.

MonthFlightsOn time30+ minCancelled
July 20253187.1%3.2%0.0%
August 20253190.3%9.7%0.0%
September 20253096.7%0.0%0.0%
October 20253193.5%3.2%3.2%
November 20253093.3%3.3%0.0%
December 20253193.5%3.2%0.0%
January 20263187.1%3.2%0.0%
February 20262896.4%3.6%0.0%
March 20263177.4%9.7%0.0%
April 20263050.0%20.0%20.0%
May 20263174.2%9.7%0.0%
June 20263090.0%6.7%0.0%

What drove SPN to GUM delay minutes?

Late aircraft was the largest recorded SPN-to-GUM delay category, accounting for 68.7% of 3,438 BTS-attributed delay minutes during July 2025–June 2026.

Airline25.8%
Late aircraft68.7%
National airspace5.5%
Weather0.0%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.