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

San Juan, PR (SJU) to Raleigh/Durham, NC (RDU) flight delay odds

82.0% of 471 official scheduled SJU-to-RDU flights arrived on time; 12.3% arrived at least 30 minutes late and 1.7% 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 SIGNALGenerally reliable
82.0%arrived on time
12.3%30+ min late
1.7%cancelled
471scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.4%all scheduled flights
120+ minutes late2.5%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+2.8 mincompleted flights

Which departure time was most reliable for SJU to RDU?

Among qualifying SJU-to-RDU departure window results, Early morning had the highest on-time rate: 88.6% of 184 flights. Afternoon was lowest at 70.8% across 113 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning18488.6%6.0%2.7%
Late morning15182.8%13.2%0.0%
Afternoon11370.8%20.4%2.7%

Which weekday was most reliable for SJU to RDU?

Among qualifying SJU-to-RDU weekday results, Wednesday had the highest on-time rate: 95.7% of 47 flights. Saturday was lowest at 70.9% across 79 flights.

DayFlightsOn time30+ minCancelled
Monday7576.0%20.0%0.0%
Tuesday5190.2%9.8%0.0%
Wednesday4795.7%4.3%0.0%
Thursday7081.4%12.9%0.0%
Friday7688.2%9.2%0.0%
Saturday7970.9%17.7%6.3%
Sunday7379.5%8.2%4.1%

Which airline was most reliable for SJU to RDU?

Among qualifying SJU-to-RDU airline results, JetBlue Airways had the highest on-time rate: 84.4% of 333 flights. Frontier Airlines was lowest at 75.2% across 121 flights.

AirlineFlightsOn time30+ minCancelled
JetBlue Airways33384.4%10.5%1.5%
Frontier Airlines12175.2%17.4%1.7%
Delta Air Lines1782.4%11.8%5.9%

Which month was most reliable for SJU to RDU?

Among qualifying SJU-to-RDU month results, October 2025 had the highest on-time rate: 94.4% of 18 flights. September 2025 was lowest at 66.7% across 18 flights.

MonthFlightsOn time30+ minCancelled
July 20254883.3%6.2%0.0%
August 20254266.7%28.6%2.4%
September 20251866.7%16.7%0.0%
October 20251894.4%5.6%0.0%
November 20254178.0%14.6%2.4%
December 20255186.3%11.8%0.0%
January 20264580.0%4.4%13.3%
February 20263789.2%8.1%0.0%
March 20264977.6%20.4%0.0%
April 20264087.5%10.0%0.0%
May 20263992.3%2.6%0.0%
June 20264381.4%16.3%0.0%

What drove SJU to RDU delay minutes?

Late aircraft was the largest recorded SJU-to-RDU delay category, accounting for 51.4% of 5,542 BTS-attributed delay minutes during July 2025–June 2026.

Airline35.0%
Late aircraft51.4%
National airspace12.0%
Weather1.7%
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.