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WanderNerd

Flight Reliability

DL 3667 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3667 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
18 min
Average arrival delay
0%
Cancelled
7 min early
Median arrival delay

Based on 140 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(21 flights)
  • Tue100%(19 flights)
  • Wed75%(20 flights)
  • Thu96%(22 flights)
  • Fri62%(21 flights)
  • Sat90%(10 flights)
  • Sun85%(27 flights)
On-time by departure window
  • 6–9 AM94%(31 flights)
  • 9 AM–12 PM100%(31 flights)
  • 12–3 PM(7 flights)
  • 6–9 PM89%(35 flights)
  • 9 PM–12 AM67%(36 flights)
On-time trend by month
100%
Apr

Jun 55% → Apr 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202555%22
August 202581%16
September 202596%23
March 202695%42
April 2026100%20
Departures on time
83%
Diverted
0%
Flights flown
140
Months covered
9

Based on 140 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.