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

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

84.9% of 1,314 official scheduled SAN-to-DTW flights arrived on time; 6.4% 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 SIGNALLower disruption
84.9%arrived on time
6.4%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 late2.7%all scheduled flights
120+ minutes late1.0%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival-1.9 mincompleted flights

Which departure time was most reliable for SAN to DTW?

Among qualifying SAN-to-DTW departure window results, Early morning had the highest on-time rate: 90.4% of 365 flights. Late morning was lowest at 76.4% across 314 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36590.4%2.5%0.8%
Late morning31476.4%11.1%1.3%
Afternoon28982.4%8.7%0.7%
Night34688.7%4.3%1.4%

Which weekday was most reliable for SAN to DTW?

Among qualifying SAN-to-DTW weekday results, Tuesday had the highest on-time rate: 91.6% of 179 flights. Saturday was lowest at 81.6% across 158 flights.

DayFlightsOn time30+ minCancelled
Monday20384.2%5.9%2.0%
Tuesday17991.6%3.9%0.6%
Wednesday17385.0%5.8%0.6%
Thursday19883.8%6.1%0.0%
Friday20185.1%8.0%1.0%
Saturday15881.6%6.3%1.9%
Sunday20282.7%8.4%1.5%

Which airline was most reliable for SAN to DTW?

Among qualifying SAN-to-DTW airline results, Delta Air Lines had the highest on-time rate: 85.5% of 1,260 flights. Spirit Airlines was lowest at 70.4% across 54 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines1,26085.5%6.2%1.0%
Spirit Airlines5470.4%11.1%1.9%

Which month was most reliable for SAN to DTW?

Among qualifying SAN-to-DTW month results, October 2025 had the highest on-time rate: 93.2% of 118 flights. March 2026 was lowest at 75.3% across 93 flights.

MonthFlightsOn time30+ minCancelled
July 202513379.7%9.0%0.8%
August 202513177.9%8.4%1.5%
September 202511984.9%7.6%1.7%
October 202511893.2%0.8%0.0%
November 202510784.1%7.5%0.0%
December 202511284.8%9.8%2.7%
January 20269486.2%6.4%2.1%
February 20268486.9%4.8%1.2%
March 20269375.3%10.8%2.2%
April 202610689.6%3.8%0.0%
May 202611290.2%2.7%0.9%
June 202610586.7%4.8%0.0%

What drove SAN to DTW delay minutes?

Airline was the largest recorded SAN-to-DTW delay category, accounting for 34.7% of 9,136 BTS-attributed delay minutes during July 2025–June 2026.

Airline34.7%
Late aircraft33.4%
National airspace31.6%
Weather0.3%
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.