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Flight Reliability

DL 3127 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3127 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

82%
Arrive within 15 minutes
4 min
Average arrival delay
0.4%
Cancelled
9 min early
Median arrival delay

Based on 728 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon85%(101 flights)
  • Tue77%(104 flights)
  • Wed83%(103 flights)
  • Thu90%(102 flights)
  • Fri78%(104 flights)
  • Sat87%(104 flights)
  • Sun76%(106 flights)
On-time by departure window
  • 12–3 PM81%(627 flights)
  • 3–6 PM87%(97 flights)
On-time trend by month
87%
May

Jun 65% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%60
July 202568%62
August 202584%62
September 202580%60
October 202579%61
November 202588%58
December 202582%62
January 202687%61
February 202689%56
March 202688%60
April 202688%60
May 202687%62
Departures on time
81%
Diverted
0.1%
Flights flown
724
Months covered
12

Keep nerding

Based on 728 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.