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

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

Historically, 84.5% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 2,412 flights.

HISTORICAL ROUTE SIGNALLower disruption
84.5%arrived on time
7.6%30+ min late
0.7%cancelled
2,412scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.8%all scheduled flights
120+ minutes late1.7%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+1.1 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning73187.0%5.5%1.2%
Late morning60380.4%10.1%0.3%
Afternoon58182.6%10.3%0.3%
Night49788.1%4.6%0.8%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday35585.6%6.5%0.8%
Tuesday33984.1%6.5%0.3%
Wednesday33687.5%5.7%0.0%
Thursday35083.4%8.0%0.6%
Friday35284.4%8.2%0.6%
Saturday32384.5%9.0%1.5%
Sunday35782.4%9.5%1.1%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines2,17185.9%6.7%0.7%
Alaska Airlines24172.6%15.8%0.4%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 202523076.5%11.7%0.9%
August 202522980.8%7.9%0.9%
September 202521788.9%7.8%0.0%
October 202523390.6%6.0%0.0%
November 202521885.3%9.6%1.4%
December 202521577.7%11.2%0.9%
January 202617979.9%6.1%2.2%
February 202616589.7%7.3%0.0%
March 202618771.7%11.2%1.1%
April 202617696.0%1.7%0.0%
May 202618590.8%4.3%0.5%
June 202617889.3%4.5%0.6%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline41.8%
Late aircraft29.4%
National airspace21.6%
Weather6.9%
Security0.3%
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.