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Flight Reliability

DL 3015 · Delta Air Lines

Knoxville → Atlanta (TYS–ATL)

90
Nerd Approved
WanderNerd Reliability Score
92%
Arrive within 15 minutes
4 min early
Average arrival delay
2.6%
Cancelled
16 min early
Median arrival delay

Based on 343 historical flights. Data through May 2026.

What the data says

Monday is the weak spot.

DL 3015 arrived on time 100% of the time on Fridays. On Mondays: 88%.

Better than the TYS–ATL route average.

DL 3015 arrived on time 92% of the time, versus 85% across the TYS–ATL route.

Better than the Delta Air Lines network average.

DL 3015 arrived on time 92% of the time, versus 81% across the Delta Air Lines network.

Trending in the right direction.

DL 3015 arrived on time 95% 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
  • Mon88%(49 flights)
  • Tue90%(49 flights)
  • Wed92%(50 flights)
  • Thu94%(50 flights)
  • Fri100%(48 flights)
  • Sat89%(45 flights)
  • Sun93%(43 flights)
On-time by departure window
  • 3–6 AM92%(327 flights)
  • 6–9 AM—(7 flights)
On-time trend by month
100%
May

Jun 93% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%27
July 202581%31
August 202590%30
September 202597%30
October 2025100%31
November 202596%26
December 202578%18
January 202692%26
February 202689%26
March 202689%28
April 202697%30
May 2026100%31
Departures on time
91%
Diverted
0%
Flights flown
334
Months covered
12

Same route, other flights

Keep nerding

Based on 343 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.