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Flight Reliability

DL 1526 · Delta Air Lines

Sacramento → Salt Lake City (SMF–SLC)

100
Nerd Approved
WanderNerd Reliability Score
98%
Arrive within 15 minutes
9 min early
Average arrival delay
0.3%
Cancelled
15 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Monday has been the better bet.

A small edge: 100% on time on Mondays against 96% on Sundays.

Better than the SMF–SLC route average.

DL 1526 arrived on time 98% of the time, versus 89% across the SMF–SLC route.

Well ahead of the Delta Air Lines network.

DL 1526 arrived on time 98% of the time, versus 81% across the Delta Air Lines network.

It basically never cancels.

Out of 365 scheduled flights, only 0.3% were cancelled.

The breakdown

On-time by weekday
  • Mon100%(51 flights)
  • Tue96%(52 flights)
  • Wed98%(52 flights)
  • Thu96%(52 flights)
  • Fri98%(52 flights)
  • Sat100%(52 flights)
  • Sun96%(53 flights)
On-time trend by month
97%
May

Jun 100% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%30
July 202597%31
August 202597%31
September 2025100%30
October 2025100%31
November 2025100%30
December 202597%30
January 202697%31
February 2026100%28
March 202694%31
April 202697%30
May 202697%31
Departures on time
98%
Diverted
0%
Flights flown
364
Months covered
12

Same route, other flights

Keep nerding

Based on 365 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.