Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 3012 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3012 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

88%
Arrive within 15 minutes
2 min early
Average arrival delay
0.9%
Cancelled
11 min early
Median arrival delay

Based on 702 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(102 flights)
  • Tue88%(104 flights)
  • Wed88%(102 flights)
  • Thu94%(102 flights)
  • Fri89%(98 flights)
  • Sat95%(91 flights)
  • Sun85%(97 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM88%(76 flights)
  • 12–3 PM88%(617 flights)
  • 3–6 PM—(2 flights)
On-time trend by month
89%
May

Jun 67% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%58
July 202587%62
August 202590%48
September 2025100%57
October 202597%60
November 202592%60
December 202592%59
January 202675%52
February 202691%56
March 202686%62
April 202693%60
May 202689%62
Departures on time
86%
Diverted
0%
Flights flown
696
Months covered
12

Keep nerding

Based on 702 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.