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

Newark, NJ (EWR) to San Antonio, TX (SAT) flight delay odds

85.6% of 554 official scheduled EWR-to-SAT flights arrived on time; 7.8% arrived at least 30 minutes late and 0.9% 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 SIGNALLower disruption
85.6%arrived on time
7.8%30+ min late
0.9%cancelled
554scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.4%all scheduled flights
120+ minutes late1.1%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival-7.7 mincompleted flights

Which departure time was most reliable for EWR to SAT?

Among qualifying EWR-to-SAT departure window results, Early morning had the highest on-time rate: 89.4% of 161 flights. Afternoon was lowest at 83.8% across 173 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning16189.4%2.5%1.2%
Late morning22084.1%11.4%0.5%
Afternoon17383.8%8.1%1.2%

Which weekday was most reliable for EWR to SAT?

Among qualifying EWR-to-SAT weekday results, Tuesday had the highest on-time rate: 90.7% of 86 flights. Saturday was lowest at 79.6% across 54 flights.

DayFlightsOn time30+ minCancelled
Monday8783.9%5.7%2.3%
Tuesday8690.7%7.0%2.3%
Wednesday8488.1%7.1%0.0%
Thursday8584.7%8.2%0.0%
Friday8786.2%9.2%0.0%
Saturday5479.6%11.1%0.0%
Sunday7183.1%7.0%1.4%

Which airline was most reliable for EWR to SAT?

Only United Airlines met the EWR-to-SAT airline threshold: 85.7% of 552 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
United Airlines55285.7%7.6%0.9%
Spirit Airlines250.0%50.0%0.0%

Which month was most reliable for EWR to SAT?

Among qualifying EWR-to-SAT month results, November 2025 had the highest on-time rate: 94.6% of 56 flights. October 2025 was lowest at 74.5% across 55 flights.

MonthFlightsOn time30+ minCancelled
July 20253375.8%15.2%0.0%
August 20253183.9%3.2%0.0%
September 20253494.1%5.9%0.0%
October 20255574.5%12.7%0.0%
November 20255694.6%3.6%0.0%
December 20255877.6%17.2%0.0%
January 20263591.4%5.7%2.9%
February 20264080.0%5.0%10.0%
March 20265494.4%1.9%0.0%
April 20265290.4%1.9%0.0%
May 20265494.4%0.0%0.0%
June 20265275.0%19.2%0.0%

What drove EWR to SAT delay minutes?

Airline was the largest recorded EWR-to-SAT delay category, accounting for 37.2% of 3,794 BTS-attributed delay minutes during July 2025–June 2026.

Airline37.2%
Late aircraft30.0%
National airspace31.6%
Weather1.2%
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.