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Flight Reliability

DL 5134 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5134 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

56%
Arrive within 15 minutes
33 min
Average arrival delay
3.8%
Cancelled
7 min
Median arrival delay

Based on 552 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon61%(86 flights)
  • Tue55%(89 flights)
  • Wed55%(91 flights)
  • Thu61%(84 flights)
  • Fri54%(83 flights)
  • Sat80%(10 flights)
  • Sun48%(86 flights)
On-time by departure window
  • 3–6 PM52%(270 flights)
  • 6–9 PM60%(259 flights)
On-time trend by month
66%
May

Jun 33% → May 66% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202533%49
July 202524%46
August 202565%52
September 202585%52
October 202570%54
November 202546%44
December 202541%34
January 202661%43
February 202654%48
March 202653%30
April 202667%42
May 202666%35
Departures on time
62%
Diverted
0.4%
Flights flown
529
Months covered
12

Keep nerding

Based on 552 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.