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Flight Reliability

DL 1149 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1149 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

79%
Arrive within 15 minutes
7 min
Average arrival delay
3.0%
Cancelled
6 min early
Median arrival delay

Based on 602 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(83 flights)
  • Tue75%(89 flights)
  • Wed79%(87 flights)
  • Thu84%(86 flights)
  • Fri78%(86 flights)
  • Sat78%(69 flights)
  • Sun81%(83 flights)
On-time by departure window
  • 6–9 AM80%(270 flights)
  • 9 AM–12 PM79%(301 flights)
  • 3–6 PM—(3 flights)
  • 6–9 PM—(9 flights)
On-time trend by month
84%
May

Jun 93% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%57
July 202562%60
August 202569%62
September 202585%60
October 202578%59
November 202586%58
December 202543%47
January 202684%51
February 202696%52
March 2026100%12
April 202688%34
May 202684%31
Departures on time
85%
Diverted
0.2%
Flights flown
583
Months covered
12

Keep nerding

Based on 602 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.