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Flight Reliability

DL 3690 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3690 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
14 min
Average arrival delay
0%
Cancelled
8 min early
Median arrival delay

Based on 442 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(63 flights)
  • Tue91%(65 flights)
  • Wed77%(61 flights)
  • Thu92%(59 flights)
  • Fri79%(63 flights)
  • Sat73%(62 flights)
  • Sun84%(67 flights)
On-time by departure window
  • 6–9 AM84%(85 flights)
  • 9 AM–12 PM90%(200 flights)
  • 12–3 PM75%(112 flights)
  • 3–6 PM60%(30 flights)
  • 6–9 PM92%(13 flights)
On-time trend by month
84%
May

Jun 92% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202592%60
July 202584%61
August 202584%61
September 202590%20
November 202597%29
December 202553%55
January 202685%33
February 202689%28
March 202681%31
April 202690%30
May 202684%31
Departures on time
82%
Diverted
0.5%
Flights flown
440
Months covered
12

Keep nerding

Based on 442 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.