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WanderNerd

Flight Reliability

DL 2400 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2400 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

85%
Arrive within 15 minutes
7 min
Average arrival delay
1.5%
Cancelled
11 min early
Median arrival delay

Based on 462 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(63 flights)
  • Tue89%(64 flights)
  • Wed85%(65 flights)
  • Thu79%(66 flights)
  • Fri89%(66 flights)
  • Sat91%(65 flights)
  • Sun82%(65 flights)
On-time by departure window
  • 6–9 AM92%(190 flights)
  • 9 AM–12 PM94%(65 flights)
  • 12–3 PM83%(88 flights)
  • 3–6 PM80%(15 flights)
  • 6–9 PM68%(96 flights)
On-time trend by month
88%
May

Jun 83% → May 88% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%23
July 202590%31
August 202590%31
September 202597%30
October 202597%31
November 202596%27
December 202593%41
January 202679%61
February 202670%56
March 202670%37
April 202687%30
May 202688%56
Departures on time
87%
Diverted
0.2%
Flights flown
454
Months covered
12

Based on 462 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.