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Flight Reliability

DL 5242 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5242 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

78%
Arrive within 15 minutes
7 min
Average arrival delay
5.5%
Cancelled
12 min early
Median arrival delay

Based on 330 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(45 flights)
  • Tue80%(51 flights)
  • Wed75%(52 flights)
  • Thu72%(50 flights)
  • Fri70%(53 flights)
  • Sat90%(10 flights)
  • Sun82%(50 flights)
On-time by departure window
  • 9 AM–12 PM—(1 flights)
  • 12–3 PM77%(198 flights)
  • 3–6 PM77%(105 flights)
  • 6–9 PM—(7 flights)
On-time trend by month
73%
May

Jun 60% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%40
July 202567%46
August 202588%51
September 202594%51
January 202679%28
February 202677%26
March 202671%24
April 202672%25
May 202673%11
Departures on time
80%
Diverted
0.3%
Flights flown
311
Months covered
11

Keep nerding

Based on 330 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.