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Flight Reliability

DL 2317 · Delta Air Lines

Salt Lake City → Nashville (SLC–BNA)

87
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
2 min
Average arrival delay
0.8%
Cancelled
7 min early
Median arrival delay

Based on 362 historical flights. Data through May 2026.

What the data says

6–9 PM has a slight edge.

Departures between 6–9 PM arrived on time 85% of the time, against 81% between 3–6 PM.

Tuesday is the weak spot.

DL 2317 arrived on time 87% of the time on Sundays. On Tuesdays: 77%.

A bit behind the SLC–BNA route.

DL 2317 arrived on time 82% of the time, versus 87% across the SLC–BNA route.

Recent months have been rougher.

DL 2317 arrived on time 78% of the time over the last three months in the data, compared with 86% in the three months before that.

The breakdown

On-time by weekday
  • Mon81%(52 flights)
  • Tue77%(52 flights)
  • Wed83%(52 flights)
  • Thu78%(51 flights)
  • Fri82%(51 flights)
  • Sat86%(49 flights)
  • Sun87%(52 flights)
On-time by departure window
  • 3–6 PM81%(300 flights)
  • 6–9 PM85%(59 flights)
On-time trend by month
68%
May

Jun 86% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202586%28
July 202558%31
August 202590%31
September 202583%30
October 202583%30
November 202590%29
December 202581%31
January 202697%29
February 202682%28
March 202684%31
April 202683%30
May 202668%31
Departures on time
83%
Diverted
0%
Flights flown
359
Months covered
12

Same route, other flights

Keep nerding

Based on 362 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.