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

San Juan, PR (SJU) to Charlotte Amalie, VI (STT) flight delay odds

69.9% of 365 official scheduled SJU-to-STT flights arrived on time; 19.7% arrived at least 30 minutes late and 0.5% 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 SIGNALVariable
69.9%arrived on time
19.7%30+ min late
0.5%cancelled
365scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late11.2%all scheduled flights
120+ minutes late5.2%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+18.1 mincompleted flights

Which departure time was most reliable for SJU to STT?

Among qualifying SJU-to-STT departure window results, Late morning had the highest on-time rate: 83.0% of 53 flights. Afternoon was lowest at 67.6% across 312 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning5383.0%11.3%0.0%
Afternoon31267.6%21.2%0.6%

Which weekday was most reliable for SJU to STT?

Among qualifying SJU-to-STT weekday results, Wednesday had the highest on-time rate: 79.5% of 44 flights. Monday was lowest at 61.0% across 59 flights.

DayFlightsOn time30+ minCancelled
Monday5961.0%32.2%0.0%
Tuesday4673.9%10.9%0.0%
Wednesday4479.5%18.2%0.0%
Thursday5267.3%26.9%0.0%
Friday6078.3%10.0%0.0%
Saturday5263.5%19.2%3.8%
Sunday5267.3%19.2%0.0%

Which airline was most reliable for SJU to STT?

Only JetBlue Airways met the SJU-to-STT airline threshold: 70.9% of 351 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
JetBlue Airways35170.9%18.5%0.6%
Frontier Airlines1442.9%50.0%0.0%

Which month was most reliable for SJU to STT?

Among qualifying SJU-to-STT month results, May 2026 had the highest on-time rate: 93.5% of 31 flights. February 2026 was lowest at 53.6% across 28 flights.

MonthFlightsOn time30+ minCancelled
July 20253969.2%28.2%0.0%
August 20253759.5%21.6%2.7%
September 20252254.5%27.3%0.0%
October 20252483.3%16.7%0.0%
November 20253180.6%16.1%0.0%
December 20253167.7%25.8%0.0%
January 20263158.1%29.0%3.2%
February 20262853.6%32.1%0.0%
March 20263174.2%12.9%0.0%
April 20263080.0%10.0%0.0%
May 20263193.5%3.2%0.0%
June 20263063.3%13.3%0.0%

What drove SJU to STT delay minutes?

Late aircraft was the largest recorded SJU-to-STT delay category, accounting for 52.9% of 7,920 BTS-attributed delay minutes during July 2025–June 2026.

Airline37.4%
Late aircraft52.9%
National airspace6.8%
Weather2.9%
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.