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Flight Reliability

DL 5246 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5246 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
13 min
Average arrival delay
2.0%
Cancelled
5 min early
Median arrival delay

Based on 660 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(94 flights)
  • Tue75%(98 flights)
  • Wed69%(98 flights)
  • Thu79%(94 flights)
  • Fri76%(89 flights)
  • Sat74%(84 flights)
  • Sun75%(89 flights)
On-time by departure window
  • 12–3 PM—(3 flights)
  • 3–6 PM76%(440 flights)
  • 6–9 PM73%(203 flights)
On-time trend by month
69%
May

Jun 70% → May 69% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%59
July 202563%56
August 202583%60
September 202596%50
October 202572%60
November 202576%53
December 202561%38
January 202686%43
February 202689%45
March 202658%60
April 202682%60
May 202669%62
Departures on time
74%
Diverted
0.2%
Flights flown
646
Months covered
12

Keep nerding

Based on 660 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.