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

Austin, TX (AUS) to San Diego, CA (SAN) flight delay odds

73.9% of 2,545 official scheduled AUS-to-SAN flights arrived on time; 15.7% arrived at least 30 minutes late and 1.1% 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
73.9%arrived on time
15.7%30+ min late
1.1%cancelled
2,545scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.5%all scheduled flights
120+ minutes late2.2%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+8.1 mincompleted flights

Which departure time was most reliable for AUS to SAN?

Among qualifying AUS-to-SAN departure window results, Early morning had the highest on-time rate: 90.1% of 725 flights. Evening was lowest at 57.2% across 629 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning72590.1%4.0%0.8%
Late morning14174.5%12.8%0.7%
Afternoon89075.2%15.1%0.7%
Evening62957.2%27.5%1.6%
Night16058.1%28.1%2.5%

Which weekday was most reliable for AUS to SAN?

Among qualifying AUS-to-SAN weekday results, Saturday had the highest on-time rate: 82.7% of 271 flights. Sunday was lowest at 66.3% across 371 flights.

DayFlightsOn time30+ minCancelled
Monday41969.5%16.5%1.4%
Tuesday34380.5%11.4%0.6%
Wednesday33381.7%10.8%0.3%
Thursday39167.3%20.7%0.8%
Friday41773.9%16.5%1.0%
Saturday27182.7%9.6%1.5%
Sunday37166.3%21.3%1.9%

Which airline was most reliable for AUS to SAN?

Among qualifying AUS-to-SAN airline results, SkyWest Airlines had the highest on-time rate: 80.0% of 1,000 flights. Southwest Airlines was lowest at 69.8% across 1,422 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,42269.8%18.4%0.6%
SkyWest Airlines1,00080.0%11.3%1.5%
Frontier Airlines12371.5%20.3%2.4%

Which month was most reliable for AUS to SAN?

Among qualifying AUS-to-SAN month results, February 2026 had the highest on-time rate: 81.4% of 215 flights. June 2026 was lowest at 61.8% across 212 flights.

MonthFlightsOn time30+ minCancelled
July 202520569.8%22.4%0.5%
August 202518275.8%11.5%0.5%
September 202517680.1%13.1%1.1%
October 202520171.1%14.9%0.0%
November 202519972.4%19.1%1.0%
December 202519874.7%11.6%2.0%
January 202622479.5%8.5%4.0%
February 202621581.4%10.7%0.0%
March 202625479.9%13.0%0.8%
April 202624372.0%18.5%0.0%
May 202623668.2%21.2%0.8%
June 202621261.8%22.6%1.9%

What drove AUS to SAN delay minutes?

Late aircraft was the largest recorded AUS-to-SAN delay category, accounting for 57.9% of 36,805 BTS-attributed delay minutes during July 2025–June 2026.

Airline26.0%
Late aircraft57.9%
National airspace12.9%
Weather3.1%
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.