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WanderNerd

Flight Reliability

DL 5108 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5108 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

68%
Arrive within 15 minutes
13 min
Average arrival delay
4.6%
Cancelled
3 min early
Median arrival delay

Based on 307 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon62%(42 flights)
  • Tue51%(43 flights)
  • Wed71%(41 flights)
  • Thu64%(42 flights)
  • Fri81%(42 flights)
  • Sat80%(40 flights)
  • Sun67%(43 flights)
On-time by departure window
  • 9 AM–12 PM(5 flights)
  • 12–3 PM71%(213 flights)
  • 3–6 PM52%(31 flights)
  • 6–9 PM43%(21 flights)
  • 9 PM–12 AM78%(23 flights)
On-time trend by month
76%
May

Jun 68% → May 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%28
July 202565%31
August 202587%31
September 202562%13
October 202568%28
November 202563%27
December 202571%31
March 202656%34
April 202655%33
May 202676%25
Departures on time
70%
Diverted
0%
Flights flown
293
Months covered
12

Based on 307 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.