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Flight Reliability

DL 5636 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5636 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

75%
Arrive within 15 minutes
11 min
Average arrival delay
7.1%
Cancelled
9 min early
Median arrival delay

Based on 504 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(76 flights)
  • Tue75%(75 flights)
  • Wed75%(72 flights)
  • Thu79%(70 flights)
  • Fri70%(76 flights)
  • Sat85%(27 flights)
  • Sun75%(72 flights)
On-time by departure window
  • 6–9 AM88%(16 flights)
  • 9 AM–12 PM—(4 flights)
  • 12–3 PM79%(200 flights)
  • 3–6 PM71%(125 flights)
  • 6–9 PM72%(123 flights)
On-time trend by month
77%
May

Jun 74% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202574%46
July 202568%50
August 202594%52
September 202589%52
October 202573%52
November 202566%44
December 202564%44
January 202684%25
February 202682%22
March 202644%23
April 202675%28
May 202677%30
Departures on time
79%
Diverted
0%
Flights flown
468
Months covered
12

Keep nerding

Based on 504 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.