Best time to fly El Paso to San Antonio

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full ELP to SAT record →

Best month

September

91.1% on time · 146 flights

Worst month

June

69.3% on time · 144 flights

Month Flights On time Cancelled When late, by
January 102 87% 1.96% 55 min
February 88 89.7% 0% 72 min
March 134 80.5% 0.75% 70 min
April 136 79.3% 0.74% 62 min
May 142 79.4% 0% 49 min
June 144 69.3% 1.39% 65 min
July 146 73.1% 0% 84 min
August 146 86.3% 0% 52 min
September 146 91.1% 0% 53 min
October 153 86.9% 0% 57 min
November 140 86.3% 0% 50 min
December 148 87.2% 0% 44 min

What a seasonal pattern can and cannot tell you

Months differ for reasons that repeat — summer thunderstorms in the American interior, winter fog and de-icing in northern Europe, school holidays filling every seat and leaving no slack in the schedule. Those are real and they come back each year.

What the pattern cannot do is forecast a particular flight. A quiet month has late days and a bad month has punctual ones. Treat this as a way to choose between two dates you are indifferent about, not as a promise.