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Flight Reliability

DL 720 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 720 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

73%
Arrive within 15 minutes
26 min
Average arrival delay
1.5%
Cancelled
5 min early
Median arrival delay

Based on 263 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon69%(35 flights)
  • Tue67%(39 flights)
  • Wed78%(40 flights)
  • Thu76%(33 flights)
  • Fri62%(34 flights)
  • Sat77%(39 flights)
  • Sun81%(36 flights)
On-time by departure window
  • 6–9 AM87%(23 flights)
  • 3–6 PM98%(48 flights)
  • 6–9 PM61%(150 flights)
  • 9 PM–12 AM77%(35 flights)
On-time trend by month
81%
May

Jun 52% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202552%29
July 202562%29
August 202574%31
September 202548%29
December 202564%11
January 202688%40
February 202696%22
April 202685%20
May 202681%31
Departures on time
73%
Diverted
1.1%
Flights flown
256
Months covered
12

Keep nerding

Based on 263 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.