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Route Reliability

San Antonio → Detroit

SAT–DTW · 1,214 miles · San Antonio International Airport to Detroit Metropolitan Wayne County Airport

94
Nerd Approved
WanderNerd Reliability Score
90%
Arrive within 15 minutes
3 min early
Average arrival delay
0.7%
Cancelled
961
Flights in the data

Data through May 2026.

Airlines on this route

  • Delta Air Lines90% on time · 935 flights
  • Spirit Airlines96% on time · 26 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

Morning flights do better here.

SAT–DTW flights departing between 3–6 AM arrived on time 95% of the time, versus 86% between 3–6 PM.

Friday comes out ahead.

A small edge: 92% on time on Fridays against 87% on Sundays.

Ticking up lately.

SAT–DTW flights arrived on time 90% of the time over the last three months in the data, compared with 86% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon91%(148 flights)
  • Tue91%(138 flights)
  • Wed90%(136 flights)
  • Thu89%(139 flights)
  • Fri92%(145 flights)
  • Sat91%(103 flights)
  • Sun87%(141 flights)
On-time by departure window
  • 3–6 AM95%(361 flights)
  • 9 AM–12 PM89%(215 flights)
  • 12–3 PM88%(32 flights)
  • 3–6 PM86%(342 flights)
On-time trend by month
91%
May

Jun 91% → May 91% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202591%91
July 202587%89
August 202595%97
September 202593%82
October 202593%83
November 202594%83
December 202587%85
January 202687%63
February 202684%56
March 202690%61
April 202688%75
May 202691%85

Keep nerding

Based on 961 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.