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

New York, NY (JFK) to San Diego, CA (SAN) flight delay odds

76.7% of 2,413 official scheduled JFK-to-SAN flights arrived on time; 13.0% arrived at least 30 minutes late and 2.4% 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 SIGNALGenerally reliable
76.7%arrived on time
13.0%30+ min late
2.4%cancelled
2,413scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.8%all scheduled flights
120+ minutes late1.9%all scheduled flights
Diverted0.7%did not reach as scheduled
Average arrival-0.4 mincompleted flights

Which departure time was most reliable for JFK to SAN?

Among qualifying JFK-to-SAN departure window results, Early morning had the highest on-time rate: 82.0% of 628 flights. Evening was lowest at 71.4% across 630 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning62882.0%9.7%1.9%
Late morning39579.2%11.1%1.8%
Afternoon76075.3%13.9%3.0%
Evening63071.4%16.2%2.5%

Which weekday was most reliable for JFK to SAN?

Among qualifying JFK-to-SAN weekday results, Tuesday had the highest on-time rate: 82.9% of 345 flights. Sunday was lowest at 68.1% across 354 flights.

DayFlightsOn time30+ minCancelled
Monday35676.7%9.8%4.8%
Tuesday34582.9%9.9%2.0%
Wednesday34579.7%11.9%1.2%
Thursday35274.7%15.3%1.1%
Friday35578.6%12.1%1.7%
Saturday30676.1%13.7%2.3%
Sunday35468.1%18.1%3.7%

Which airline was most reliable for JFK to SAN?

Among qualifying JFK-to-SAN airline results, JetBlue Airways had the highest on-time rate: 83.4% of 727 flights. Delta Air Lines was lowest at 73.5% across 1,036 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines1,03673.5%14.3%2.8%
JetBlue Airways72783.4%9.8%2.5%
Alaska Airlines65074.3%14.5%1.7%

Which month was most reliable for JFK to SAN?

Among qualifying JFK-to-SAN month results, April 2026 had the highest on-time rate: 85.4% of 206 flights. July 2025 was lowest at 67.1% across 213 flights.

MonthFlightsOn time30+ minCancelled
July 202521367.1%22.1%5.6%
August 202521182.5%13.3%0.5%
September 202520673.8%10.7%2.4%
October 202521371.8%14.1%0.9%
November 202520479.9%12.3%0.0%
December 202521174.4%17.1%3.3%
January 202617967.6%15.6%5.6%
February 202615472.7%11.7%9.7%
March 202620185.1%9.0%1.5%
April 202620685.4%5.8%0.0%
May 202620884.1%8.2%1.0%
June 202620773.9%15.5%0.5%

What drove JFK to SAN delay minutes?

National airspace was the largest recorded JFK-to-SAN delay category, accounting for 38.4% of 28,186 BTS-attributed delay minutes during July 2025–June 2026.

Airline36.8%
Late aircraft21.2%
National airspace38.4%
Weather3.0%
Security0.6%
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.