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Flight Reliability

DL 4646 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 4646 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

74%
Arrive within 15 minutes
10 min
Average arrival delay
1.4%
Cancelled
7 min early
Median arrival delay

Based on 278 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(40 flights)
  • Tue83%(42 flights)
  • Wed71%(41 flights)
  • Thu76%(41 flights)
  • Fri62%(39 flights)
  • Sat73%(30 flights)
  • Sun68%(41 flights)
On-time by departure window
  • 6–9 AM78%(187 flights)
  • 3–6 PM—(2 flights)
  • 9 PM–12 AM66%(85 flights)
On-time trend by month
60%
Apr

Jun 87% → Apr 60% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%23
July 202574%31
August 202574%31
September 202587%30
October 202583%30
November 202573%26
December 202556%16
January 202657%21
February 202670%27
March 202669%29
April 202660%10
Departures on time
79%
Diverted
0%
Flights flown
274
Months covered
11

Keep nerding

Based on 278 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.