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

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

89.0% of 365 official scheduled GUM-to-SPN flights arrived on time; 3.8% 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
89.0%arrived on time
3.8%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 late1.6%all scheduled flights
120+ minutes late1.1%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival-3.4 mincompleted flights

Which departure time was most reliable for GUM to SPN?

Only Early morning met the GUM-to-SPN departure window threshold: 89.3% of 363 scheduled flights arrived on time during July 2025–June 2026.

Departure windowFlightsOn time30+ minCancelled
Early morning36389.3%3.6%1.9%

Which weekday was most reliable for GUM to SPN?

Among qualifying GUM-to-SPN weekday results, Tuesday had the highest on-time rate: 96.2% of 53 flights. Wednesday was lowest at 82.7% across 52 flights.

DayFlightsOn time30+ minCancelled
Monday5284.6%7.7%3.8%
Tuesday5396.2%1.9%1.9%
Wednesday5282.7%5.8%1.9%
Thursday5288.5%1.9%1.9%
Friday5292.3%3.8%1.9%
Saturday5284.6%1.9%1.9%
Sunday5294.2%3.8%0.0%

Which airline was most reliable for GUM to SPN?

Only United Airlines met the GUM-to-SPN airline threshold: 89.0% of 365 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
United Airlines36589.0%3.8%1.9%

Which month was most reliable for GUM to SPN?

Among qualifying GUM-to-SPN month results, August 2025 had the highest on-time rate: 100.0% of 31 flights. April 2026 was lowest at 66.7% across 30 flights.

MonthFlightsOn time30+ minCancelled
July 20253193.5%0.0%0.0%
August 202531100.0%0.0%0.0%
September 20253096.7%3.3%0.0%
October 20253196.8%0.0%3.2%
November 20253080.0%6.7%0.0%
December 20253183.9%12.9%0.0%
January 20263190.3%3.2%0.0%
February 20262889.3%3.6%0.0%
March 20263180.6%9.7%0.0%
April 20263066.7%3.3%20.0%
May 20263190.3%3.2%0.0%
June 202630100.0%0.0%0.0%

What drove GUM to SPN delay minutes?

Airline was the largest recorded GUM-to-SPN delay category, accounting for 65.0% of 1,600 BTS-attributed delay minutes during July 2025–June 2026.

Airline65.0%
Late aircraft17.6%
National airspace8.2%
Weather9.2%
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.