OnTimeRoutes
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Delta Air Lines RDU to DTW on-time performance

Delta Air Lines nonstop flights from Raleigh/Durham to Detroit · Aug 2025 – Jul 2026

On-time arrivals
88%
arrived < 15 min late
Cancelled
1.6%
21 flights
Avg arrival delay
11 min
83 min when late
Rank on route
#2 of 3
route average 88% on time

Key facts

  • Delta Air Lines flights on RDU to DTW arrived on time 88% of the time in Aug 2025 – Jul 2026.
  • 1.6% were cancelled, and 5% arrived an hour or more late.
  • That ranks #2 of 3 airlines on this route, which averaged 88% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (42%).

On-time trend by month

60%80%100%July 2025: 82.2% on time, 0.0% cancelledJul ’25August 2025: 84.0% on time, 0.8% cancelledAug ’25September 2025: 93.8% on time, 0.0% cancelledSep ’25October 2025: 96.6% on time, 0.0% cancelledOct ’25November 2025: 88.5% on time, 0.0% cancelledNov ’25December 2025: 75.5% on time, 1.9% cancelledDec ’25January 2026: 87.9% on time, 6.2% cancelledJan ’26February 2026: 91.4% on time, 1.1% cancelledFeb ’26March 2026: 85.8% on time, 0.9% cancelledMar ’26April 2026: 86.2% on time, 1.8% cancelledApr ’26May 2026: 89.7% on time, 1.7% cancelledMay ’26June 2026: 93.8% on time, 0.9% cancelledJun ’26July 2026: 81.3% on time, 4.3% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft42%
  • Airline (crew, maintenance, cleaning, fueling)31%
  • Air traffic control & airport congestion26%
  • Extreme weather2%
  • Security0%

Other airlines on RDU to DTW

1,335 Delta Air Lines flights tracked on this route; 21 cancelled, 0 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.