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

San Juan, PR (SJU) to Newark, NJ (EWR) flight delay odds

72.0% of 2,100 official scheduled SJU-to-EWR flights arrived on time; 16.2% arrived at least 30 minutes late and 3.1% 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
72.0%arrived on time
16.2%30+ min late
3.1%cancelled
2,100scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.4%all scheduled flights
120+ minutes late4.8%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+12.9 mincompleted flights

Which departure time was most reliable for SJU to EWR?

Among qualifying SJU-to-EWR departure window results, Late morning had the highest on-time rate: 82.6% of 92 flights. Afternoon was lowest at 63.2% across 699 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning26879.9%6.0%4.5%
Late morning9282.6%13.0%1.1%
Afternoon69963.2%21.6%3.1%
Evening58972.0%17.1%2.9%
Night45279.0%13.3%3.1%

Which weekday was most reliable for SJU to EWR?

Among qualifying SJU-to-EWR weekday results, Tuesday had the highest on-time rate: 76.5% of 293 flights. Sunday was lowest at 65.0% across 294 flights.

DayFlightsOn time30+ minCancelled
Monday31766.2%18.9%5.0%
Tuesday29376.5%13.3%2.0%
Wednesday29375.8%14.3%1.7%
Thursday29074.8%14.1%1.4%
Friday31273.4%14.4%2.9%
Saturday30173.1%16.9%3.7%
Sunday29465.0%21.1%5.1%

Which airline was most reliable for SJU to EWR?

Among qualifying SJU-to-EWR airline results, United Airlines had the highest on-time rate: 74.3% of 1,113 flights. Spirit Airlines was lowest at 57.5% across 146 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines1,11374.3%15.2%2.7%
JetBlue Airways62672.8%16.1%2.9%
Frontier Airlines21567.9%16.7%2.3%
Spirit Airlines14657.5%23.3%8.9%

Which month was most reliable for SJU to EWR?

Among qualifying SJU-to-EWR month results, May 2026 had the highest on-time rate: 85.2% of 135 flights. July 2025 was lowest at 58.3% across 199 flights.

MonthFlightsOn time30+ minCancelled
July 202519958.3%28.1%5.0%
August 202519368.4%22.8%1.0%
September 202515173.5%15.9%0.0%
October 202514470.8%13.9%2.8%
November 202514475.7%14.6%3.5%
December 202519773.1%14.2%2.5%
January 202621767.3%17.1%9.2%
February 202618063.9%17.2%7.8%
March 202618873.4%14.9%1.6%
April 202619180.1%8.9%0.5%
May 202613585.2%9.6%0.7%
June 202616182.0%13.0%0.6%

What drove SJU to EWR delay minutes?

Late aircraft was the largest recorded SJU-to-EWR delay category, accounting for 57.4% of 42,603 BTS-attributed delay minutes during July 2025–June 2026.

Airline27.3%
Late aircraft57.4%
National airspace15.0%
Weather0.2%
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.