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WanderNerd

Flight Reliability

DL 2239 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2239 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

76%
Arrive within 15 minutes
8 min
Average arrival delay
1.7%
Cancelled
10 min early
Median arrival delay

Based on 289 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(41 flights)
  • Tue74%(42 flights)
  • Wed79%(42 flights)
  • Thu78%(41 flights)
  • Fri75%(40 flights)
  • Sat76%(38 flights)
  • Sun76%(38 flights)
On-time by departure window
  • 6–9 AM100%(21 flights)
  • 9 AM–12 PM84%(38 flights)
  • 12–3 PM73%(223 flights)
On-time trend by month
73%
May

Jun 67% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
July 202567%30
August 202574%31
September 202597%29
October 202581%31
November 202566%29
December 202556%18
January 202676%25
February 2026100%11
April 2026100%18
May 202673%30
Departures on time
75%
Diverted
0.7%
Flights flown
282
Months covered
11

Based on 289 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.