Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 3142 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3142 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

78%
Arrive within 15 minutes
9 min
Average arrival delay
2.0%
Cancelled
4 min early
Median arrival delay

Based on 297 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(41 flights)
  • Tue77%(43 flights)
  • Wed70%(43 flights)
  • Thu76%(42 flights)
  • Fri78%(41 flights)
  • Sat82%(38 flights)
  • Sun88%(41 flights)
On-time by departure window
  • 12–3 PM84%(73 flights)
  • 3–6 PM72%(144 flights)
  • 6–9 PM—(1 flights)
  • 9 PM–12 AM85%(71 flights)
On-time trend by month
80%
May

Jun 92% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202592%13
October 202581%26
November 202586%28
December 202589%18
January 202673%26
February 202691%11
March 202665%48
April 202676%58
May 202680%61
Departures on time
80%
Diverted
0.7%
Flights flown
289
Months covered
9

Keep nerding

Based on 297 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.