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

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

69.7% of 547 official scheduled STT-to-SJU flights arrived on time; 20.3% arrived at least 30 minutes late and 2.0% 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
69.7%arrived on time
20.3%30+ min late
2.0%cancelled
547scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late12.4%all scheduled flights
120+ minutes late5.3%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+16.4 mincompleted flights

Which departure time was most reliable for STT to SJU?

Only Afternoon met the STT-to-SJU departure window threshold: 70.8% of 527 scheduled flights arrived on time during July 2025–June 2026.

Departure windowFlightsOn time30+ minCancelled
Afternoon52770.8%19.2%2.1%

Which weekday was most reliable for STT to SJU?

Among qualifying STT-to-SJU weekday results, Tuesday had the highest on-time rate: 82.4% of 68 flights. Monday was lowest at 57.7% across 78 flights.

DayFlightsOn time30+ minCancelled
Monday7857.7%29.5%2.6%
Tuesday6882.4%13.2%0.0%
Wednesday6274.2%19.4%0.0%
Thursday7169.0%25.4%0.0%
Friday8280.5%12.2%0.0%
Saturday11563.5%23.5%5.2%
Sunday7164.8%16.9%4.2%

Which airline was most reliable for STT to SJU?

Only JetBlue Airways met the STT-to-SJU airline threshold: 70.5% of 533 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
JetBlue Airways53370.5%19.3%2.1%
Frontier Airlines1435.7%57.1%0.0%

Which month was most reliable for STT to SJU?

Among qualifying STT-to-SJU month results, May 2026 had the highest on-time rate: 94.4% of 36 flights. January 2026 was lowest at 53.7% across 67 flights.

MonthFlightsOn time30+ minCancelled
July 20254362.8%30.2%0.0%
August 20254266.7%23.8%4.8%
September 20252268.2%18.2%0.0%
October 20252889.3%7.1%0.0%
November 20254165.9%26.8%0.0%
December 20255166.7%19.6%0.0%
January 20266753.7%28.4%7.5%
February 20265757.9%24.6%7.0%
March 20266269.4%24.2%0.0%
April 20265886.2%8.6%0.0%
May 20263694.4%5.6%0.0%
June 20264072.5%15.0%0.0%

What drove STT to SJU delay minutes?

Late aircraft was the largest recorded STT-to-SJU delay category, accounting for 63.4% of 12,595 BTS-attributed delay minutes during July 2025–June 2026.

Airline23.1%
Late aircraft63.4%
National airspace12.9%
Weather0.2%
Security0.4%
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.