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WanderNerd

Flight Reliability

DL 5673 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5673 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

80%
Arrive within 15 minutes
4 min
Average arrival delay
8.2%
Cancelled
12 min early
Median arrival delay

Based on 341 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(46 flights)
  • Tue80%(49 flights)
  • Wed85%(47 flights)
  • Thu78%(45 flights)
  • Fri76%(50 flights)
  • Sat90%(31 flights)
  • Sun75%(44 flights)
On-time by departure window
  • 6–9 AM94%(54 flights)
  • 9 AM–12 PM100%(28 flights)
  • 12–3 PM(6 flights)
  • 3–6 PM82%(77 flights)
  • 6–9 PM71%(147 flights)
On-time trend by month
96%
May

Jun 72% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202572%29
July 202568%22
August 202577%30
September 202586%29
October 202569%29
November 202579%28
December 202568%25
January 202679%24
February 202691%22
March 202686%22
April 202696%25
May 202696%27
Departures on time
81%
Diverted
0.3%
Flights flown
312
Months covered
12

Based on 341 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.