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

Atlanta, GA (ATL) to San Diego, CA (SAN) flight delay odds

77.7% of 2,413 official scheduled ATL-to-SAN flights arrived on time; 11.2% arrived at least 30 minutes late and 0.6% 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
77.7%arrived on time
11.2%30+ min late
0.6%cancelled
2,413scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.8%all scheduled flights
120+ minutes late1.0%all scheduled flights
Diverted0.7%did not reach as scheduled
Average arrival+3.2 mincompleted flights

Which departure time was most reliable for ATL to SAN?

Among qualifying ATL-to-SAN departure window results, Early morning had the highest on-time rate: 86.7% of 362 flights. Night was lowest at 70.1% across 234 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36286.7%6.1%0.6%
Late morning42181.2%8.8%0.5%
Afternoon81078.3%11.5%0.1%
Evening58672.0%14.5%0.7%
Night23470.1%14.5%2.6%

Which weekday was most reliable for ATL to SAN?

Among qualifying ATL-to-SAN weekday results, Wednesday had the highest on-time rate: 84.2% of 336 flights. Thursday was lowest at 72.3% across 350 flights.

DayFlightsOn time30+ minCancelled
Monday35577.5%11.5%0.3%
Tuesday33981.4%10.3%0.0%
Wednesday33684.2%6.0%0.0%
Thursday35072.3%14.0%0.9%
Friday35275.0%13.1%0.3%
Saturday32380.8%9.3%1.5%
Sunday35873.7%14.0%1.4%

Which airline was most reliable for ATL to SAN?

Among qualifying ATL-to-SAN airline results, Alaska Airlines had the highest on-time rate: 81.3% of 241 flights. Delta Air Lines was lowest at 77.3% across 2,172 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines2,17277.3%11.6%0.7%
Alaska Airlines24181.3%7.9%0.0%

Which month was most reliable for ATL to SAN?

Among qualifying ATL-to-SAN month results, March 2026 had the highest on-time rate: 84.4% of 186 flights. July 2025 was lowest at 70.4% across 230 flights.

MonthFlightsOn time30+ minCancelled
July 202523070.4%20.0%0.9%
August 202522979.0%12.2%0.0%
September 202521777.0%10.6%0.0%
October 202523377.3%6.9%0.0%
November 202521880.7%9.2%1.4%
December 202521572.6%18.1%0.9%
January 202617974.9%11.7%2.2%
February 202616582.4%7.3%0.0%
March 202618684.4%9.7%1.6%
April 202617878.7%9.6%0.0%
May 202618577.8%7.0%0.0%
June 202617880.3%10.1%0.6%

What drove ATL to SAN delay minutes?

Airline was the largest recorded ATL-to-SAN delay category, accounting for 45.4% of 23,688 BTS-attributed delay minutes during July 2025–June 2026.

Airline45.4%
Late aircraft21.9%
National airspace28.0%
Weather4.7%
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.