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Flight Reliability

DL 5633 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5633 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

84%
Arrive within 15 minutes
2 min
Average arrival delay
2.3%
Cancelled
7 min early
Median arrival delay

Based on 395 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon93%(54 flights)
  • Tue78%(55 flights)
  • Wed94%(51 flights)
  • Thu87%(54 flights)
  • Fri75%(57 flights)
  • Sat86%(55 flights)
  • Sun75%(60 flights)
On-time by departure window
  • 6–9 AM87%(286 flights)
  • 9 AM–12 PM91%(21 flights)
  • 12–3 PM—(4 flights)
  • 3–6 PM67%(43 flights)
  • 6–9 PM75%(32 flights)
On-time trend by month
84%
May

Jun 79% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%29
July 202590%30
August 202590%31
September 202597%29
October 202594%31
November 202587%30
December 202568%37
January 202669%32
February 202689%26
March 202683%29
April 202682%27
May 202684%55
Departures on time
87%
Diverted
0%
Flights flown
386
Months covered
12

Keep nerding

Based on 395 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.