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

San Antonio, TX (SAT) to Detroit, MI (DTW) flight delay odds

89.3% of 951 official scheduled SAT-to-DTW flights arrived on time; 6.3% arrived at least 30 minutes late and 0.7% 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
89.3%arrived on time
6.3%30+ min late
0.7%cancelled
951scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.7%all scheduled flights
120+ minutes late1.8%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival-4.1 mincompleted flights

Which departure time was most reliable for SAT to DTW?

Among qualifying SAT-to-DTW departure window results, Early morning had the highest on-time rate: 94.0% of 365 flights. Afternoon was lowest at 84.5% across 374 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36594.0%3.3%1.1%
Late morning21189.6%6.6%0.5%
Afternoon37484.5%9.1%0.5%

Which weekday was most reliable for SAT to DTW?

Among qualifying SAT-to-DTW weekday results, Friday had the highest on-time rate: 92.2% of 141 flights. Sunday was lowest at 86.4% across 140 flights.

DayFlightsOn time30+ minCancelled
Monday14687.7%6.2%0.7%
Tuesday14289.4%7.0%1.4%
Wednesday13890.6%5.1%0.7%
Thursday13989.9%5.0%0.0%
Friday14192.2%5.7%0.0%
Saturday10588.6%5.7%1.0%
Sunday14086.4%9.3%1.4%

Which airline was most reliable for SAT to DTW?

Only Delta Air Lines met the SAT-to-DTW airline threshold: 89.2% of 934 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines93489.2%6.3%0.7%
Spirit Airlines1794.1%5.9%0.0%

Which month was most reliable for SAT to DTW?

Among qualifying SAT-to-DTW month results, November 2025 had the highest on-time rate: 94.0% of 83 flights. July 2025 was lowest at 83.7% across 92 flights.

MonthFlightsOn time30+ minCancelled
July 20259283.7%6.5%2.2%
August 20259793.8%5.2%0.0%
September 20258292.7%3.7%0.0%
October 20258392.8%6.0%0.0%
November 20258394.0%4.8%0.0%
December 20258686.0%11.6%0.0%
January 20266484.4%10.9%1.6%
February 20265683.9%10.7%0.0%
March 20266288.7%4.8%1.6%
April 20267685.5%5.3%0.0%
May 20268788.5%5.7%2.3%
June 20268394.0%2.4%1.2%

What drove SAT to DTW delay minutes?

Airline was the largest recorded SAT-to-DTW delay category, accounting for 52.7% of 6,879 BTS-attributed delay minutes during July 2025–June 2026.

Airline52.7%
Late aircraft30.0%
National airspace15.8%
Weather0.8%
Security0.6%
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.