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

Detroit, MI (DTW) to San Diego, CA (SAN) flight delay odds

74.2% of 1,314 official scheduled DTW-to-SAN flights arrived on time; 14.4% 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
74.2%arrived on time
14.4%30+ min late
1.1%cancelled
1,314scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.7%all scheduled flights
120+ minutes late2.5%all scheduled flights
Diverted0.5%did not reach as scheduled
Average arrival+9.0 mincompleted flights

Which departure time was most reliable for DTW to SAN?

Among qualifying DTW-to-SAN departure window results, Late morning had the highest on-time rate: 85.2% of 54 flights. Evening was lowest at 59.8% across 254 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36580.8%9.0%1.1%
Late morning5485.2%5.6%1.9%
Afternoon62075.3%14.7%1.0%
Evening25459.8%23.2%1.2%

Which weekday was most reliable for DTW to SAN?

Among qualifying DTW-to-SAN weekday results, Tuesday had the highest on-time rate: 81.6% of 179 flights. Sunday was lowest at 70.3% across 202 flights.

DayFlightsOn time30+ minCancelled
Monday20372.4%18.7%2.0%
Tuesday17981.6%8.9%0.0%
Wednesday17376.9%11.6%0.0%
Thursday19872.2%15.7%1.0%
Friday20172.1%15.9%0.0%
Saturday15875.3%13.3%2.5%
Sunday20270.3%15.3%2.0%

Which airline was most reliable for DTW to SAN?

Among qualifying DTW-to-SAN airline results, Spirit Airlines had the highest on-time rate: 85.2% of 54 flights. Delta Air Lines was lowest at 73.7% across 1,260 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines1,26073.7%14.8%1.0%
Spirit Airlines5485.2%5.6%1.9%

Which month was most reliable for DTW to SAN?

Among qualifying DTW-to-SAN month results, October 2025 had the highest on-time rate: 84.7% of 118 flights. January 2026 was lowest at 55.3% across 94 flights.

MonthFlightsOn time30+ minCancelled
July 202513368.4%16.5%1.5%
August 202513180.9%9.9%0.8%
September 202511976.5%9.2%1.7%
October 202511884.7%5.1%0.0%
November 202510771.0%18.7%0.0%
December 202511261.6%25.9%2.7%
January 20269455.3%30.9%2.1%
February 20268477.4%11.9%1.2%
March 20269381.7%11.8%2.2%
April 202610679.2%8.5%0.0%
May 202611276.8%10.7%0.9%
June 202610575.2%16.2%0.0%

What drove DTW to SAN delay minutes?

Airline was the largest recorded DTW-to-SAN delay category, accounting for 41.0% of 18,341 BTS-attributed delay minutes during July 2025–June 2026.

Airline41.0%
Late aircraft27.2%
National airspace29.5%
Weather2.3%
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.