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

Newark, NJ (EWR) to San Diego, CA (SAN) flight delay odds

77.6% of 1,561 official scheduled EWR-to-SAN flights arrived on time; 12.1% arrived at least 30 minutes late and 1.9% 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
77.6%arrived on time
12.1%30+ min late
1.9%cancelled
1,561scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.7%all scheduled flights
120+ minutes late2.8%all scheduled flights
Diverted1.0%did not reach as scheduled
Average arrival+0.8 mincompleted flights

Which departure time was most reliable for EWR to SAN?

Among qualifying EWR-to-SAN departure window results, Early morning had the highest on-time rate: 91.3% of 358 flights. Evening was lowest at 68.6% across 411 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning35891.3%4.5%1.1%
Late morning36279.0%9.1%1.1%
Afternoon43073.5%15.3%2.8%
Evening41168.6%18.0%2.4%

Which weekday was most reliable for EWR to SAN?

Among qualifying EWR-to-SAN weekday results, Wednesday had the highest on-time rate: 80.8% of 219 flights. Sunday was lowest at 69.3% across 225 flights.

DayFlightsOn time30+ minCancelled
Monday22580.4%11.6%3.1%
Tuesday22880.7%9.2%1.3%
Wednesday21980.8%11.4%0.5%
Thursday22477.2%13.8%0.9%
Friday22578.7%9.3%1.3%
Saturday21575.8%13.0%1.9%
Sunday22569.3%16.4%4.4%

Which airline was most reliable for EWR to SAN?

Among qualifying EWR-to-SAN airline results, United Airlines had the highest on-time rate: 78.6% of 1,233 flights. Alaska Airlines was lowest at 73.8% across 328 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines1,23378.6%11.7%1.4%
Alaska Airlines32873.8%13.7%4.0%

Which month was most reliable for EWR to SAN?

Among qualifying EWR-to-SAN month results, March 2026 had the highest on-time rate: 91.1% of 124 flights. July 2025 was lowest at 66.2% across 154 flights.

MonthFlightsOn time30+ minCancelled
July 202515466.2%24.7%4.5%
August 202515578.1%11.6%0.6%
September 202514383.9%8.4%0.7%
October 202514574.5%11.0%0.0%
November 202511869.5%15.3%2.5%
December 202512475.8%16.9%1.6%
January 20269973.7%11.1%4.0%
February 202610075.0%11.0%8.0%
March 202612491.1%3.2%0.8%
April 202612085.8%5.0%0.0%
May 202613588.1%5.2%1.5%
June 202614470.1%18.8%0.7%

What drove EWR to SAN delay minutes?

Late aircraft was the largest recorded EWR-to-SAN delay category, accounting for 36.3% of 20,098 BTS-attributed delay minutes during July 2025–June 2026.

Airline23.6%
Late aircraft36.3%
National airspace31.6%
Weather8.2%
Security0.4%
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.