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

San Juan, PR (SJU) to New York, NY (JFK) flight delay odds

77.0% of 3,657 official scheduled SJU-to-JFK flights arrived on time; 13.6% arrived at least 30 minutes late and 2.7% 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
77.0%arrived on time
13.6%30+ min late
2.7%cancelled
3,657scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.0%all scheduled flights
120+ minutes late3.4%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+5.9 mincompleted flights

Which departure time was most reliable for SJU to JFK?

Among qualifying SJU-to-JFK departure window results, Early morning had the highest on-time rate: 84.7% of 1,067 flights. Night was lowest at 69.4% across 399 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,06784.7%7.4%2.2%
Late morning33973.7%15.9%2.9%
Afternoon96675.8%14.0%2.7%
Evening88673.6%17.7%2.9%
Night39969.4%17.8%3.3%

Which weekday was most reliable for SJU to JFK?

Among qualifying SJU-to-JFK weekday results, Friday had the highest on-time rate: 81.2% of 527 flights. Sunday was lowest at 71.9% across 534 flights.

DayFlightsOn time30+ minCancelled
Monday52974.3%14.9%4.0%
Tuesday52277.0%14.0%2.3%
Wednesday50380.5%10.3%0.8%
Thursday52677.9%14.1%1.0%
Friday52781.2%11.0%1.5%
Saturday51676.2%14.1%4.5%
Sunday53471.9%16.3%4.7%

Which airline was most reliable for SJU to JFK?

Among qualifying SJU-to-JFK airline results, Delta Air Lines had the highest on-time rate: 87.0% of 1,104 flights. JetBlue Airways was lowest at 72.4% across 2,237 flights.

AirlineFlightsOn time30+ minCancelled
JetBlue Airways2,23772.4%17.0%3.2%
Delta Air Lines1,10487.0%6.4%1.9%
Frontier Airlines31674.4%13.9%1.6%

Which month was most reliable for SJU to JFK?

Among qualifying SJU-to-JFK month results, May 2026 had the highest on-time rate: 87.8% of 254 flights. February 2026 was lowest at 65.3% across 294 flights.

MonthFlightsOn time30+ minCancelled
July 202537168.7%17.3%3.8%
August 202535973.0%20.3%0.3%
September 202524883.9%8.1%0.0%
October 202526981.8%9.7%0.7%
November 202529779.8%12.5%1.0%
December 202535174.4%13.7%4.8%
January 202631066.8%16.1%9.4%
February 202629465.3%19.4%8.5%
March 202630582.3%13.1%0.7%
April 202631083.9%10.3%0.0%
May 202625487.8%6.7%0.4%
June 202628982.7%11.1%1.4%

What drove SJU to JFK delay minutes?

Late aircraft was the largest recorded SJU-to-JFK delay category, accounting for 45.9% of 56,701 BTS-attributed delay minutes during July 2025–June 2026.

Airline38.8%
Late aircraft45.9%
National airspace13.6%
Weather1.6%
Security0.1%
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.