OnTimeRoutes
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Delta Air Lines ATL to DTW on-time performance

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

On-time arrivals
79%
arrived < 15 min late
Cancelled
0.5%
19 flights
Avg arrival delay
14 min
60 min when late
Rank on route
#1 of 3
route average 77% on time

Key facts

  • Delta Air Lines flights on ATL to DTW arrived on time 79% of the time in Aug 2025 – Jul 2026.
  • 0.5% were cancelled, and 7% arrived an hour or more late.
  • That ranks #1 of 3 airlines on this route, which averaged 77% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (52%).

On-time trend by month

50%75%100%July 2025: 68.6% on time, 0.0% cancelledJul ’25August 2025: 80.6% on time, 0.3% cancelledAug ’25September 2025: 86.0% on time, 0.0% cancelledSep ’25October 2025: 84.5% on time, 0.0% cancelledOct ’25November 2025: 83.6% on time, 1.0% cancelledNov ’25December 2025: 73.5% on time, 0.3% cancelledDec ’25January 2026: 79.3% on time, 1.7% cancelledJan ’26February 2026: 83.5% on time, 0.0% cancelledFeb ’26March 2026: 74.1% on time, 1.3% cancelledMar ’26April 2026: 87.5% on time, 0.9% cancelledApr ’26May 2026: 70.0% on time, 0.3% cancelledMay ’26June 2026: 83.9% on time, 0.3% cancelledJun ’26July 2026: 60.2% on time, 0.0% 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)52%
  • Late-arriving aircraft26%
  • Air traffic control & airport congestion15%
  • Extreme weather7%
  • Security0%

Other airlines on ATL to DTW

3,737 Delta Air Lines flights tracked on this route; 19 cancelled, 5 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.