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Flight Reliability

DL 1547 · Delta Air Lines

New Orleans → Atlanta (MSY–ATL)97% of its flights flew this route. The rest (PDX–SLC, ATL–TLH) are included in these numbers.

89
Pretty Reliable
WanderNerd Reliability Score
93%
Arrive within 15 minutes
7 min early
Average arrival delay
2.8%
Cancelled
12 min early
Median arrival delay

Based on 319 historical flights. Data through May 2026.

What the data says

Monday is the weak spot.

DL 1547 arrived on time 98% of the time on Fridays. On Mondays: 83%.

Better than the MSY–ATL route average.

DL 1547 arrived on time 93% of the time, versus 83% across the MSY–ATL route.

Better than the Delta Air Lines network average.

DL 1547 arrived on time 93% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon83%(47 flights)
  • Tue91%(43 flights)
  • Wed98%(42 flights)
  • Thu93%(44 flights)
  • Fri98%(45 flights)
  • Sat94%(47 flights)
  • Sun93%(42 flights)
On-time by departure window
  • 3–6 AM93%(295 flights)
  • 6–9 AM—(7 flights)
  • 9 AM–12 PM—(1 flights)
  • 12–3 PM—(3 flights)
  • 3–6 PM—(4 flights)
On-time trend by month
95%
May

Jun 93% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%27
July 202593%30
August 202597%30
September 2025100%30
October 202587%31
November 202597%30
December 202593%28
January 202688%16
February 202692%13
March 202679%24
April 202693%30
May 202695%21
Departures on time
94%
Diverted
0%
Flights flown
310
Months covered
12

Same route, other flights

Keep nerding

Based on 319 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.