Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 3668 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3668 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

87%
Arrive within 15 minutes
0 min
Average arrival delay
0.2%
Cancelled
8 min early
Median arrival delay

Based on 474 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(70 flights)
  • Tue87%(69 flights)
  • Wed84%(70 flights)
  • Thu91%(67 flights)
  • Fri87%(69 flights)
  • Sat90%(57 flights)
  • Sun92%(71 flights)
On-time by departure window
  • 6–9 AM81%(63 flights)
  • 9 AM–12 PM90%(176 flights)
  • 12–3 PM87%(234 flights)
On-time trend by month
87%
Apr

Jun 98% → Apr 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202598%46
July 202592%62
August 202589%62
September 202590%60
October 202597%62
November 202586%58
December 202571%38
March 202667%42
April 202687%37
Departures on time
87%
Diverted
0%
Flights flown
473
Months covered
10

Keep nerding

Based on 474 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.