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Flight Reliability

DL 1365 · Delta Air Lines

Detroit → San Antonio (DTW–SAT)

72
Usually Fine
WanderNerd Reliability Score
72%
Arrive within 15 minutes
9 min
Average arrival delay
1.4%
Cancelled
4 min early
Median arrival delay

Based on 359 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

DL 1365 departing between 9 PM–12 AM arrived on time 79% of the time, versus 71% between 6–9 PM.

Sunday scaries are real for this one.

DL 1365 arrived on time 90% of the time on Tuesdays and just 60% on Sundays. That gap is worth planning around.

Lagging the DTW–SAT route.

DL 1365 arrived on time 72% of the time, versus 82% across the DTW–SAT route.

Lagging the Delta Air Lines network.

DL 1365 arrived on time 72% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon68%(50 flights)
  • Tue90%(50 flights)
  • Wed78%(50 flights)
  • Thu79%(48 flights)
  • Fri65%(51 flights)
  • Sat69%(51 flights)
  • Sun60%(52 flights)
On-time by departure window
  • 3–6 PM—(9 flights)
  • 6–9 PM71%(287 flights)
  • 9 PM–12 AM79%(56 flights)
On-time trend by month
56%
May

Jun 73% → May 56% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%30
July 202563%30
August 202584%31
September 202570%30
October 202590%31
November 202571%28
December 202568%28
January 202659%29
February 202682%28
March 202683%30
April 202667%30
May 202656%27
Departures on time
73%
Diverted
0.6%
Flights flown
352
Months covered
12

Same route, other flights

Keep nerding

Based on 359 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.