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Flight Reliability

DL 5317 · Delta Air Lines

Knoxville → Atlanta (TYS–ATL)

82
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
12 min
Average arrival delay
2.0%
Cancelled
9 min early
Median arrival delay

Based on 344 historical flights. Data through May 2026.

What the data says

Saturdays have been rough.

DL 5317 arrived on time 92% of the time on Fridays and just 77% on Saturdays. That gap is worth planning around.

A bit ahead of the Delta Air Lines network.

DL 5317 arrived on time 85% of the time, versus 81% across the Delta Air Lines network.

Slipping a little lately.

DL 5317 arrived on time 78% of the time over the last three months in the data, compared with 82% in the three months before that.

The breakdown

On-time by weekday
  • Mon80%(49 flights)
  • Tue89%(47 flights)
  • Wed86%(49 flights)
  • Thu88%(49 flights)
  • Fri92%(49 flights)
  • Sat77%(47 flights)
  • Sun84%(45 flights)
On-time by departure window
  • 6–9 AM85%(334 flights)
  • 9 AM–12 PM—(1 flights)
On-time trend by month
87%
May

Jun 82% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%28
July 202587%31
August 202597%31
September 202597%30
October 202590%31
November 202582%27
December 202563%19
January 202696%22
February 202689%26
March 202670%30
April 202676%29
May 202687%31
Departures on time
88%
Diverted
0.6%
Flights flown
335
Months covered
12

Same route, other flights

Keep nerding

Based on 344 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.