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WanderNerd

Flight Reliability

DL 3848 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3848 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

76%
Arrive within 15 minutes
4 min
Average arrival delay
1.8%
Cancelled
9 min early
Median arrival delay

Based on 330 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon61%(49 flights)
  • Tue78%(50 flights)
  • Wed79%(42 flights)
  • Thu72%(47 flights)
  • Fri81%(48 flights)
  • Sat91%(33 flights)
  • Sun76%(54 flights)
On-time by departure window
  • 6–9 AM89%(36 flights)
  • 9 AM–12 PM77%(90 flights)
  • 12–3 PM66%(65 flights)
  • 3–6 PM80%(110 flights)
  • 6–9 PM64%(22 flights)
On-time trend by month
93%
May

Jun 88% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202588%17
July 202561%43
August 202575%16
September 202550%18
December 202567%12
January 202681%58
February 202681%52
March 202672%58
April 202688%16
May 202693%29
Departures on time
78%
Diverted
0.3%
Flights flown
323
Months covered
11

Based on 330 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.