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Flight Reliability

DL 2403 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2403 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

86%
Arrive within 15 minutes
2 min early
Average arrival delay
0.9%
Cancelled
12 min early
Median arrival delay

Based on 326 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(50 flights)
  • Tue86%(43 flights)
  • Wed82%(44 flights)
  • Thu88%(50 flights)
  • Fri89%(47 flights)
  • Sat85%(34 flights)
  • Sun91%(53 flights)
On-time by departure window
  • 6–9 AM99%(90 flights)
  • 3–6 PM79%(191 flights)
  • 6–9 PM88%(40 flights)
On-time trend by month
100%
May

Jun 68% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%53
July 202579%52
August 202582%44
September 202593%41
November 202586%22
December 202589%18
March 202696%22
April 2026100%30
May 2026100%31
Departures on time
82%
Diverted
0.6%
Flights flown
321
Months covered
10

Keep nerding

Based on 326 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.