OnTimeRoutes
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Delta Air Lines TYS to ATL on-time performance

Delta Air Lines nonstop flights from Knoxville to Atlanta · Aug 2025 – Jul 2026

On-time arrivals
88%
arrived < 15 min late
Cancelled
1.9%
32 flights
Avg arrival delay
10 min
77 min when late
Rank on route
#1 of 2
route average 88% on time

Key facts

  • Delta Air Lines flights on TYS to ATL arrived on time 88% of the time in Aug 2025 – Jul 2026.
  • 1.9% were cancelled, and 5% arrived an hour or more late.
  • That ranks #1 of 2 airlines on this route, which averaged 88% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (52%).

On-time trend by month

60%80%100%July 2025: 74.4% on time, 1.3% cancelledJul ’25August 2025: 86.3% on time, 1.3% cancelledAug ’25September 2025: 90.9% on time, 0.0% cancelledSep ’25October 2025: 92.8% on time, 0.0% cancelledOct ’25November 2025: 87.7% on time, 3.9% cancelledNov ’25December 2025: 81.5% on time, 2.7% cancelledDec ’25January 2026: 91.4% on time, 7.2% cancelledJan ’26February 2026: 90.0% on time, 0.8% cancelledFeb ’26March 2026: 82.1% on time, 1.8% cancelledMar ’26April 2026: 90.8% on time, 0.8% cancelledApr ’26May 2026: 89.3% on time, 3.4% cancelledMay ’26June 2026: 92.3% on time, 0.0% cancelledJun ’26July 2026: 76.7% on time, 1.3% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft52%
  • Airline (crew, maintenance, cleaning, fueling)27%
  • Air traffic control & airport congestion20%
  • Extreme weather1%
  • Security0%

Other airlines on TYS to ATL

1,718 Delta Air Lines flights tracked on this route; 32 cancelled, 3 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.