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WanderNerd

Flight Reliability

DL 3765 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3765 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

88%
Arrive within 15 minutes
3 min early
Average arrival delay
0.7%
Cancelled
13 min early
Median arrival delay

Based on 434 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(59 flights)
  • Tue87%(61 flights)
  • Wed89%(61 flights)
  • Thu79%(61 flights)
  • Fri89%(61 flights)
  • Sat94%(64 flights)
  • Sun92%(64 flights)
On-time by departure window
  • 3–6 AM100%(13 flights)
  • 6–9 AM90%(30 flights)
  • 9 AM–12 PM93%(152 flights)
  • 12–3 PM88%(160 flights)
  • 3–6 PM71%(72 flights)
  • 6–9 PM(1 flights)
  • 9 PM–12 AM(3 flights)
On-time trend by month
92%
May

Jul 96% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202596%50
August 202568%40
September 202553%34
October 202579%14
December 2025100%14
January 202695%57
February 202693%56
March 202689%62
April 202695%60
May 202692%37
Departures on time
89%
Diverted
0%
Flights flown
431
Months covered
12

Based on 434 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.