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

Las Vegas, NV (LAS) to San Antonio, TX (SAT) flight delay odds

75.4% of 2,053 official scheduled LAS-to-SAT flights arrived on time; 14.0% arrived at least 30 minutes late and 0.3% 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
75.4%arrived on time
14.0%30+ min late
0.3%cancelled
2,053scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.5%all scheduled flights
120+ minutes late2.4%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+8.6 mincompleted flights

Which departure time was most reliable for LAS to SAT?

Among qualifying LAS-to-SAT departure window results, Early morning had the highest on-time rate: 93.3% of 520 flights. Night was lowest at 60.8% across 74 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning52093.3%4.2%0.2%
Late morning38881.7%7.7%0.0%
Afternoon63367.3%19.0%0.5%
Evening43862.8%22.1%0.2%
Night7460.8%25.7%1.4%

Which weekday was most reliable for LAS to SAT?

Among qualifying LAS-to-SAT weekday results, Saturday had the highest on-time rate: 85.4% of 233 flights. Friday was lowest at 69.8% across 324 flights.

DayFlightsOn time30+ minCancelled
Monday32375.5%15.5%0.0%
Tuesday27080.7%10.4%0.4%
Wednesday25478.7%9.1%0.0%
Thursday32372.1%16.4%0.3%
Friday32469.8%18.8%0.9%
Saturday23385.4%8.6%0.0%
Sunday32669.9%16.3%0.3%

Which airline was most reliable for LAS to SAT?

Among qualifying LAS-to-SAT airline results, Frontier Airlines had the highest on-time rate: 84.5% of 277 flights. Southwest Airlines was lowest at 72.9% across 1,564 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,56472.9%14.7%0.2%
Frontier Airlines27784.5%10.8%0.7%
Spirit Airlines21282.1%13.2%0.5%

Which month was most reliable for LAS to SAT?

Among qualifying LAS-to-SAT month results, October 2025 had the highest on-time rate: 83.6% of 201 flights. May 2026 was lowest at 62.9% across 175 flights.

MonthFlightsOn time30+ minCancelled
July 202518072.2%19.4%0.6%
August 202516175.8%11.2%0.0%
September 202518979.9%14.3%1.1%
October 202520183.6%11.4%0.0%
November 202519782.7%9.6%0.0%
December 202520578.0%10.7%0.0%
January 202613775.9%12.4%0.0%
February 202613181.7%9.2%0.0%
March 202616669.9%12.7%0.0%
April 202616273.5%14.8%0.6%
May 202617562.9%22.3%0.6%
June 202614965.8%20.8%0.7%

What drove LAS to SAT delay minutes?

Late aircraft was the largest recorded LAS-to-SAT delay category, accounting for 52.2% of 26,846 BTS-attributed delay minutes during July 2025–June 2026.

Airline33.5%
Late aircraft52.2%
National airspace14.0%
Weather0.2%
Security0.1%
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.