OnTimeRoutes
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Delta Air Lines DTW to DCA on-time performance

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

On-time arrivals
69%
arrived < 15 min late
Cancelled
2.6%
45 flights
Avg arrival delay
19 min
59 min when late
Rank on route
#3 of 5
route average 69% on time

Key facts

  • Delta Air Lines flights on DTW to DCA arrived on time 69% of the time in Aug 2025 – Jul 2026.
  • 2.6% were cancelled, and 9% arrived an hour or more late.
  • That ranks #3 of 5 airlines on this route, which averaged 69% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (54%).

On-time trend by month

40%70%100%July 2025: 58.9% on time, 5.3% cancelledJul ’25August 2025: 79.1% on time, 0.7% cancelledAug ’25September 2025: 82.7% on time, 0.0% cancelledSep ’25October 2025: 85.3% on time, 0.0% cancelledOct ’25November 2025: 62.0% on time, 0.0% cancelledNov ’25December 2025: 64.4% on time, 2.2% cancelledDec ’25January 2026: 54.8% on time, 6.3% cancelledJan ’26February 2026: 62.4% on time, 2.2% cancelledFeb ’26March 2026: 62.0% on time, 4.6% cancelledMar ’26April 2026: 67.1% on time, 1.4% cancelledApr ’26May 2026: 76.4% on time, 1.3% cancelledMay ’26June 2026: 68.3% on time, 3.4% cancelledJun ’26July 2026: 61.2% on time, 8.8% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Air traffic control & airport congestion54%
  • Airline (crew, maintenance, cleaning, fueling)30%
  • Late-arriving aircraft12%
  • Extreme weather4%
  • Security0%

Other airlines on DTW to DCA

Full DTW to DCA comparison →
Delta Air Lines on-time record across all routes →

1,741 Delta Air Lines flights tracked on this route; 45 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.