OnTimeRoutes
B

Delta Air Lines DTW to RDU on-time performance

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

On-time arrivals
84%
arrived < 15 min late
Cancelled
1.6%
22 flights
Avg arrival delay
11 min
64 min when late
Rank on route
#2 of 3
route average 84% on time

Key facts

  • Delta Air Lines flights on DTW to RDU arrived on time 84% of the time in Aug 2025 – Jul 2026.
  • 1.6% were cancelled, and 6% arrived an hour or more late.
  • That ranks #2 of 3 airlines on this route, which averaged 84% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (63%).

On-time trend by month

60%80%100%July 2025: 78.8% on time, 0.0% cancelledJul ’25August 2025: 86.6% on time, 0.8% cancelledAug ’25September 2025: 92.9% on time, 0.0% cancelledSep ’25October 2025: 90.7% on time, 0.0% cancelledOct ’25November 2025: 81.4% on time, 0.0% cancelledNov ’25December 2025: 72.6% on time, 1.9% cancelledDec ’25January 2026: 80.0% on time, 7.2% cancelledJan ’26February 2026: 88.3% on time, 0.0% cancelledFeb ’26March 2026: 80.5% on time, 0.9% cancelledMar ’26April 2026: 86.2% on time, 1.8% cancelledApr ’26May 2026: 81.0% on time, 1.7% cancelledMay ’26June 2026: 90.2% on time, 0.9% cancelledJun ’26July 2026: 79.3% on time, 5.1% 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)63%
  • Air traffic control & airport congestion18%
  • Late-arriving aircraft18%
  • Extreme weather1%
  • Security0%

Other airlines on DTW to RDU

1,335 Delta Air Lines flights tracked on this route; 22 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.