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Flight Reliability

DL 765 · Delta Air Lines

Detroit → Salt Lake City (DTW–SLC)

84
Pretty Reliable
WanderNerd Reliability Score
77%
Arrive within 15 minutes
10 min
Average arrival delay
0.3%
Cancelled
1 min early
Median arrival delay

Based on 352 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

DL 765 departing between 6–9 PM arrived on time 91% of the time, versus 76% between 3–6 PM.

Thursdays have been rough.

DL 765 arrived on time 83% of the time on Fridays and just 67% on Thursdays. That gap is worth planning around.

A bit behind the DTW–SLC route.

DL 765 arrived on time 77% of the time, versus 81% across the DTW–SLC route.

A bit behind the Delta Air Lines network.

DL 765 arrived on time 77% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon78%(51 flights)
  • Tue79%(52 flights)
  • Wed73%(52 flights)
  • Thu67%(51 flights)
  • Fri83%(52 flights)
  • Sat81%(43 flights)
  • Sun80%(50 flights)
On-time by departure window
  • 3–6 PM76%(319 flights)
  • 6–9 PM91%(32 flights)
On-time trend by month
84%
May

Jun 67% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
July 202557%30
August 202587%31
September 202597%30
October 202594%31
November 202593%29
December 202545%31
January 202665%26
February 202682%22
March 202670%30
April 202687%30
May 202684%31
Departures on time
80%
Diverted
0%
Flights flown
351
Months covered
12

Same route, other flights

Keep nerding

Based on 352 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.