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Flight Reliability

DL 3689 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3689 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

77%
Arrive within 15 minutes
17 min
Average arrival delay
0.7%
Cancelled
3 min early
Median arrival delay

Based on 440 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(67 flights)
  • Tue70%(67 flights)
  • Wed77%(66 flights)
  • Thu79%(66 flights)
  • Fri74%(66 flights)
  • Sat72%(36 flights)
  • Sun91%(68 flights)
On-time by departure window
  • 6–9 AM81%(83 flights)
  • 9 AM–12 PM—(2 flights)
  • 12–3 PM81%(133 flights)
  • 3–6 PM76%(147 flights)
  • 6–9 PM65%(71 flights)
On-time trend by month
81%
May

Jun 81% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%48
July 202581%58
August 202582%54
September 202583%52
November 202589%26
December 202560%45
January 202681%26
February 202671%28
March 202650%30
April 202677%30
May 202681%31
Departures on time
78%
Diverted
0.2%
Flights flown
436
Months covered
12

Keep nerding

Based on 440 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.