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Flight Reliability

DL 849 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 849 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
5 min early
Average arrival delay
1.0%
Cancelled
10 min early
Median arrival delay

Based on 417 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(61 flights)
  • Tue95%(59 flights)
  • Wed95%(58 flights)
  • Thu89%(61 flights)
  • Fri82%(61 flights)
  • Sat86%(51 flights)
  • Sun84%(62 flights)
On-time by departure window
  • 6–9 AM94%(209 flights)
  • 12–3 PM77%(84 flights)
  • 3–6 PM84%(119 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
68%
May

Jun 93% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%29
July 202594%31
August 202597%31
September 202593%27
October 202597%30
November 202590%30
December 202593%28
January 202685%58
February 202680%56
March 202686%58
April 202675%16
May 202668%19
Departures on time
86%
Diverted
0%
Flights flown
413
Months covered
12

Keep nerding

Based on 417 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.