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Flight Reliability

DL 1005 · Delta Air Lines

Atlanta → Detroit (ATL–DTW)

85
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
6 min
Average arrival delay
0.6%
Cancelled
4 min early
Median arrival delay

Based on 362 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

DL 1005 departing between 12–3 PM arrived on time 87% of the time, versus 76% between 3–6 PM.

Saturdays have been rough.

DL 1005 arrived on time 90% of the time on Wednesdays and just 72% on Saturdays. That gap is worth planning around.

A bit ahead of the ATL–DTW route.

DL 1005 arrived on time 81% of the time, versus 78% across the ATL–DTW route.

Slipping a little lately.

DL 1005 arrived on time 78% of the time over the last three months in the data, compared with 85% in the three months before that.

The breakdown

On-time by weekday
  • Mon82%(51 flights)
  • Tue77%(52 flights)
  • Wed90%(52 flights)
  • Thu85%(52 flights)
  • Fri83%(52 flights)
  • Sat72%(50 flights)
  • Sun74%(50 flights)
On-time by departure window
  • 12–3 PM87%(134 flights)
  • 3–6 PM76%(225 flights)
On-time trend by month
53%
May

Jun 60% → May 53% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%30
July 202565%31
August 202587%31
September 202590%30
October 202587%31
November 202593%28
December 202574%31
January 202683%30
February 202696%27
March 202687%31
April 202693%29
May 202653%30
Departures on time
76%
Diverted
0.3%
Flights flown
359
Months covered
12

Same route, other flights

Keep nerding

Based on 362 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.