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Flight Reliability

DL 3542 · Delta Air Lines

Salt Lake City → HLN (SLC–HLN)97% of its flights flew this route. The rest (MEM–DTW) are included in these numbers.

100
Nerd Approved
WanderNerd Reliability Score
98%
Arrive within 15 minutes
14 min early
Average arrival delay
0%
Cancelled
17 min early
Median arrival delay

Based on 201 historical flights. Data through May 2026.

What the data says

Tuesday has been the better bet.

A small edge: 100% on time on Tuesdays against 93% on Fridays.

Well ahead of the Delta Air Lines network.

DL 3542 arrived on time 98% of the time, versus 81% across the Delta Air Lines network.

It basically never cancels.

Out of 201 scheduled flights, only 0.0% were cancelled.

The breakdown

On-time by weekday
  • Mon97%(29 flights)
  • Tue100%(29 flights)
  • Wed100%(29 flights)
  • Thu97%(29 flights)
  • Fri93%(29 flights)
  • Sat100%(27 flights)
  • Sun100%(29 flights)
On-time by departure window
  • 3–6 PM—(6 flights)
  • 6–9 PM100%(131 flights)
  • 9 PM–12 AM98%(64 flights)
On-time trend by month
100%
Dec

Jun 90% → Dec 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%29
July 202597%31
August 2025100%31
September 2025100%30
October 2025100%31
November 2025100%30
December 2025100%19
Departures on time
96%
Diverted
0%
Flights flown
201
Months covered
7

Same route, other flights

Keep nerding

Based on 201 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.