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Flight Reliability

DL 2188 · Delta Air Lines

Detroit → Atlanta (DTW–ATL)94% of its flights flew this route. The rest (ATL–CMH) are included in these numbers.

76
Usually Fine
WanderNerd Reliability Score
72%
Arrive within 15 minutes
15 min
Average arrival delay
0.3%
Cancelled
2 min
Median arrival delay

Based on 322 historical flights. Data through May 2026.

What the data says

12–3 PM has a slight edge.

Departures between 12–3 PM arrived on time 72% of the time, against 67% between 6–9 PM.

Mondays have been rough.

DL 2188 arrived on time 85% of the time on Thursdays and just 60% on Mondays. That gap is worth planning around.

A bit behind the DTW–ATL route.

DL 2188 arrived on time 72% of the time, versus 78% across the DTW–ATL route.

Lagging the Delta Air Lines network.

DL 2188 arrived on time 72% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon60%(47 flights)
  • Tue61%(46 flights)
  • Wed80%(45 flights)
  • Thu85%(47 flights)
  • Fri67%(46 flights)
  • Sat77%(43 flights)
  • Sun72%(47 flights)
On-time by departure window
  • 12–3 PM72%(303 flights)
  • 6–9 PM67%(18 flights)
On-time trend by month
77%
May

Jun 57% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202557%30
July 202558%31
August 202568%31
September 202580%30
October 202577%30
November 202577%30
December 202571%31
February 202667%12
March 202673%30
April 202683%30
May 202677%31
Departures on time
72%
Diverted
0%
Flights flown
321
Months covered
12

Same route, other flights

Keep nerding

Based on 322 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.