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

San Juan, PR (SJU) to Christiansted, VI (STX) flight delay odds

73.9% of 326 official scheduled SJU-to-STX flights arrived on time; 17.8% arrived at least 30 minutes late and 0.9% 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
73.9%arrived on time
17.8%30+ min late
0.9%cancelled
326scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.7%all scheduled flights
120+ minutes late1.2%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+9.0 mincompleted flights

Which departure time was most reliable for SJU to STX?

Only Afternoon met the SJU-to-STX departure window threshold: 73.9% of 326 scheduled flights arrived on time during July 2025–June 2026.

Departure windowFlightsOn time30+ minCancelled
Afternoon32673.9%17.8%0.9%

Which weekday was most reliable for SJU to STX?

Among qualifying SJU-to-STX weekday results, Tuesday had the highest on-time rate: 80.4% of 46 flights. Sunday was lowest at 61.5% across 52 flights.

DayFlightsOn time30+ minCancelled
Monday4580.0%15.6%0.0%
Tuesday4680.4%6.5%2.2%
Wednesday4479.5%15.9%0.0%
Thursday5170.6%23.5%0.0%
Friday4477.3%13.6%0.0%
Saturday4470.5%20.5%4.5%
Sunday5261.5%26.9%0.0%

Which airline was most reliable for SJU to STX?

Only JetBlue Airways met the SJU-to-STX airline threshold: 76.0% of 312 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
JetBlue Airways31276.0%15.7%1.0%
Frontier Airlines1428.6%64.3%0.0%

Which month was most reliable for SJU to STX?

Among qualifying SJU-to-STX month results, May 2026 had the highest on-time rate: 87.1% of 31 flights. January 2026 was lowest at 64.5% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20254067.5%25.0%0.0%
August 20253666.7%13.9%2.8%
November 20253076.7%16.7%0.0%
December 20253167.7%22.6%0.0%
January 20263164.5%25.8%3.2%
February 20262871.4%14.3%3.6%
March 20263177.4%22.6%0.0%
April 20263080.0%13.3%0.0%
May 20263187.1%6.5%0.0%
June 20263086.7%10.0%0.0%

What drove SJU to STX delay minutes?

Late aircraft was the largest recorded SJU-to-STX delay category, accounting for 55.7% of 4,430 BTS-attributed delay minutes during July 2025–June 2026.

Airline36.8%
Late aircraft55.7%
National airspace6.6%
Weather0.4%
Security0.5%
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.