OnTimeRoutes
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Delta Air Lines CHA to ATL on-time performance

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

On-time arrivals
87%
arrived < 15 min late
Cancelled
2.3%
29 flights
Avg arrival delay
12 min
85 min when late
Rank on route
#1 of 2
route average 85% on time

Key facts

  • Delta Air Lines flights on CHA to ATL arrived on time 87% of the time in Aug 2025 – Jul 2026.
  • 2.3% were cancelled, and 6% arrived an hour or more late.
  • That ranks #1 of 2 airlines on this route, which averaged 85% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (41%).

On-time trend by month

60%80%100%July 2025: 84.6% on time, 1.9% cancelledJul ’25August 2025: 82.9% on time, 1.8% cancelledAug ’25September 2025: 91.2% on time, 0.0% cancelledSep ’25October 2025: 90.2% on time, 0.0% cancelledOct ’25November 2025: 87.1% on time, 0.9% cancelledNov ’25December 2025: 85.5% on time, 1.3% cancelledDec ’25January 2026: 90.5% on time, 10.8% cancelledJan ’26February 2026: 96.6% on time, 3.3% cancelledFeb ’26March 2026: 85.5% on time, 6.2% cancelledMar ’26April 2026: 86.6% on time, 1.0% cancelledApr ’26May 2026: 87.2% on time, 2.5% cancelledMay ’26June 2026: 88.0% on time, 0.8% cancelledJun ’26July 2026: 73.2% on time, 3.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Airline (crew, maintenance, cleaning, fueling)41%
  • Late-arriving aircraft38%
  • Extreme weather11%
  • Air traffic control & airport congestion10%
  • Security0%

Other airlines on CHA to ATL

1,288 Delta Air Lines flights tracked on this route; 29 cancelled, 1 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.