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

San Diego, CA (SAN) to Philadelphia, PA (PHL) flight delay odds

Historically, 86.2% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,046 flights.

HISTORICAL ROUTE SIGNALLower disruption
86.2%arrived on time
7.4%30+ min late
1.3%cancelled
1,046scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.2%all scheduled flights
120+ minutes late2.7%all scheduled flights
Diverted1.1%did not reach as scheduled
Average arrival-0.4 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 morning32692.9%4.0%0.3%
Late morning40177.8%11.0%2.0%
Night31990.0%6.3%1.6%

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
Monday15186.8%6.6%2.6%
Tuesday15388.9%6.5%1.3%
Wednesday14885.1%6.8%0.0%
Thursday14885.8%7.4%0.7%
Friday15086.7%10.7%0.7%
Saturday14786.4%7.5%0.7%
Sunday14983.9%6.0%3.4%

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
American Airlines1,04686.2%7.4%1.3%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20259380.6%11.8%2.2%
August 20259293.5%3.3%0.0%
September 20259086.7%7.8%0.0%
October 20259091.1%6.7%0.0%
November 20258782.8%8.0%1.1%
December 20259189.0%2.2%1.1%
January 20266777.6%7.5%7.5%
February 20267374.0%13.7%5.5%
March 20269382.8%12.9%1.1%
April 20269093.3%2.2%0.0%
May 20269090.0%5.6%0.0%
June 20269088.9%7.8%0.0%

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.

Airline57.7%
Late aircraft23.2%
National airspace7.6%
Weather10.5%
Security1.0%
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.