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WanderNerd

Flight Reliability

DL 786 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 786 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

83%
Arrive within 15 minutes
9 min
Average arrival delay
2.6%
Cancelled
10 min early
Median arrival delay

Based on 456 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(63 flights)
  • Tue84%(64 flights)
  • Wed79%(61 flights)
  • Thu69%(61 flights)
  • Fri89%(64 flights)
  • Sat94%(65 flights)
  • Sun81%(64 flights)
On-time by departure window
  • 6–9 AM91%(320 flights)
  • 3–6 PM62%(122 flights)
On-time trend by month
84%
May

Jun 81% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%59
July 202572%57
August 202597%35
September 202570%30
October 202594%31
November 202590%30
December 202590%29
January 202690%30
February 2026100%27
March 202657%28
April 202677%30
May 202684%56
Departures on time
89%
Diverted
0.4%
Flights flown
442
Months covered
12

Based on 456 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.