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

San Juan, PR (SJU) to Philadelphia, PA (PHL) flight delay odds

67.8% of 1,881 official scheduled SJU-to-PHL flights arrived on time; 19.1% arrived at least 30 minutes late and 3.4% 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
67.8%arrived on time
19.1%30+ min late
3.4%cancelled
1,881scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.6%all scheduled flights
120+ minutes late3.9%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+15.4 mincompleted flights

Which departure time was most reliable for SJU to PHL?

Among qualifying SJU-to-PHL departure window results, Early morning had the highest on-time rate: 83.9% of 534 flights. Night was lowest at 47.4% across 449 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning53483.9%7.1%2.4%
Late morning13257.6%25.0%3.0%
Afternoon60270.6%18.3%1.3%
Evening16469.5%19.5%3.7%
Night44947.4%32.5%7.3%

Which weekday was most reliable for SJU to PHL?

Among qualifying SJU-to-PHL weekday results, Wednesday had the highest on-time rate: 76.0% of 221 flights. Monday was lowest at 62.3% across 289 flights.

DayFlightsOn time30+ minCancelled
Monday28962.3%23.9%5.9%
Tuesday23966.1%18.8%2.5%
Wednesday22176.0%14.0%1.4%
Thursday27673.6%14.9%0.7%
Friday29267.1%18.2%2.7%
Saturday27668.8%18.1%4.3%
Sunday28862.8%24.3%5.6%

Which airline was most reliable for SJU to PHL?

Among qualifying SJU-to-PHL airline results, JetBlue Airways had the highest on-time rate: 93.8% of 97 flights. Frontier Airlines was lowest at 58.7% across 867 flights.

AirlineFlightsOn time30+ minCancelled
Frontier Airlines86758.7%26.0%3.3%
American Airlines70177.2%12.6%2.7%
Spirit Airlines21662.5%20.8%7.4%
JetBlue Airways9793.8%1.0%0.0%

Which month was most reliable for SJU to PHL?

Among qualifying SJU-to-PHL month results, May 2026 had the highest on-time rate: 84.8% of 197 flights. January 2026 was lowest at 52.6% across 194 flights.

MonthFlightsOn time30+ minCancelled
July 202513255.3%30.3%3.8%
August 202512961.2%24.8%2.3%
September 20256561.5%23.1%0.0%
October 20259376.3%15.1%0.0%
November 202512574.4%15.2%1.6%
December 202516454.3%29.9%3.7%
January 202619452.6%22.7%10.8%
February 202617564.6%17.1%5.7%
March 202620360.6%27.6%3.0%
April 202622478.1%12.9%3.1%
May 202619784.8%8.1%0.5%
June 202618083.9%8.3%1.7%

What drove SJU to PHL delay minutes?

Late aircraft was the largest recorded SJU-to-PHL delay category, accounting for 44.3% of 44,821 BTS-attributed delay minutes during July 2025–June 2026.

Airline43.7%
Late aircraft44.3%
National airspace11.6%
Weather0.4%
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.