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Flight Reliability

DL 5436 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5436 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

88%
Arrive within 15 minutes
4 min early
Average arrival delay
3.3%
Cancelled
13 min early
Median arrival delay

Based on 645 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon92%(89 flights)
  • Tue86%(90 flights)
  • Wed88%(92 flights)
  • Thu87%(89 flights)
  • Fri89%(89 flights)
  • Sat90%(88 flights)
  • Sun86%(87 flights)
On-time by departure window
  • 6–9 AM100%(33 flights)
  • 9 AM–12 PM88%(522 flights)
  • 12–3 PM77%(31 flights)
  • 3–6 PM88%(24 flights)
  • 6–9 PM—(1 flights)
  • 9 PM–12 AM77%(13 flights)
On-time trend by month
98%
May

Jun 83% → May 98% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%59
July 202589%61
August 202598%61
September 202595%60
October 2025100%62
November 202585%54
December 202576%46
January 202681%53
February 202680%51
March 202671%35
April 202689%28
May 202698%54
Departures on time
89%
Diverted
0%
Flights flown
624
Months covered
12

Keep nerding

Based on 645 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.