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Flight Reliability

DL 5678 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5678 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

86%
Arrive within 15 minutes
0 min
Average arrival delay
1.6%
Cancelled
10 min early
Median arrival delay

Based on 512 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(75 flights)
  • Tue90%(76 flights)
  • Wed87%(78 flights)
  • Thu82%(74 flights)
  • Fri85%(78 flights)
  • Sat93%(76 flights)
  • Sun74%(46 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM92%(130 flights)
  • 9 AM–12 PM87%(193 flights)
  • 12–3 PM80%(169 flights)
  • 3–6 PM90%(10 flights)
On-time trend by month
100%
May

Jun 100% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%20
July 202585%52
September 202597%33
October 202571%55
November 202572%53
December 202580%45
January 202690%49
February 202687%47
March 202687%52
April 202691%56
May 2026100%32
Departures on time
87%
Diverted
0.2%
Flights flown
503
Months covered
12

Keep nerding

Based on 512 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.