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Flight Reliability

DL 3728 · Delta Air Lines

Salt Lake City → PSC (SLC–PSC)95% of its flights flew this route. The rest (PSC–SLC, MSP–SDF) are included in these numbers.

93
Nerd Approved
WanderNerd Reliability Score
87%
Arrive within 15 minutes
1 min
Average arrival delay
0%
Cancelled
6 min early
Median arrival delay

Based on 353 historical flights. Data through May 2026.

What the data says

Skip Wednesday if you can.

DL 3728 arrived on time 92% of the time on Tuesdays. On Wednesdays: 81%.

A bit ahead of the Delta Air Lines network.

DL 3728 arrived on time 87% of the time, versus 81% across the Delta Air Lines network.

It basically never cancels.

Out of 353 scheduled flights, only 0.0% were cancelled.

The breakdown

On-time by weekday
  • Mon87%(53 flights)
  • Tue92%(52 flights)
  • Wed81%(48 flights)
  • Thu90%(48 flights)
  • Fri83%(53 flights)
  • Sat83%(47 flights)
  • Sun90%(51 flights)
On-time by departure window
  • 12–3 PM—(3 flights)
  • 3–6 PM87%(349 flights)
On-time trend by month
81%
May

Jun 90% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202584%32
August 202588%33
September 202596%22
October 202593%30
November 202589%28
December 202587%37
January 202693%27
February 202668%22
March 202690%30
April 202680%30
May 202681%31
Departures on time
86%
Diverted
0.3%
Flights flown
352
Months covered
12

Same route, other flights

Keep nerding

Based on 353 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.