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Flight Reliability

DL 5525 · Delta Air Lines

LFT → Atlanta (LFT–ATL)81% of its flights flew this route. The rest (DTW–GRR, GRR–DTW) are included in these numbers.

92
Nerd Approved
WanderNerd Reliability Score
89%
Arrive within 15 minutes
5 min early
Average arrival delay
0.5%
Cancelled
14 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

The 6–9 AM departure wins.

DL 5525 departing between 6–9 AM arrived on time 90% of the time, versus 81% between 9 AM–12 PM.

Sunday scaries are real for this one.

DL 5525 arrived on time 98% of the time on Fridays and just 83% on Sundays. That gap is worth planning around.

Better than the LFT–ATL route average.

DL 5525 arrived on time 89% of the time, versus 82% across the LFT–ATL route.

Better than the Delta Air Lines network average.

DL 5525 arrived on time 89% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon88%(51 flights)
  • Tue94%(51 flights)
  • Wed85%(52 flights)
  • Thu89%(55 flights)
  • Fri98%(55 flights)
  • Sat88%(42 flights)
  • Sun83%(53 flights)
On-time by departure window
  • 6–9 AM90%(323 flights)
  • 9 AM–12 PM81%(32 flights)
  • 9 PM–12 AM—(4 flights)
On-time trend by month
97%
May

Jun 85% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%26
July 202597%31
August 202590%31
September 202597%30
October 202590%31
November 202590%29
December 202587%30
January 202679%28
February 202686%28
March 202680%35
April 202697%29
May 202697%31
Departures on time
92%
Diverted
0.8%
Flights flown
359
Months covered
12

Same route, other flights

Keep nerding

Based on 364 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.