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Flight Reliability

DL 2371 · Delta Air Lines

Austin → Detroit (AUS–DTW)92% of its flights flew this route. The rest (ATL–ECP, ECP–ATL) are included in these numbers.

84
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
7 min
Average arrival delay
1.2%
Cancelled
8 min early
Median arrival delay

Based on 326 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

DL 2371 departing between 6–9 PM arrived on time 92% of the time, versus 64% between 3–6 PM.

Friday is doing you no favors.

DL 2371 arrived on time 89% of the time on Wednesdays. On Fridays: 76%.

A bit behind the AUS–DTW route.

DL 2371 arrived on time 83% of the time, versus 87% across the AUS–DTW route.

Ticking up lately.

DL 2371 arrived on time 84% of the time over the last three months in the data, compared with 81% in the three months before that.

The breakdown

On-time by weekday
  • Mon84%(49 flights)
  • Tue86%(44 flights)
  • Wed89%(45 flights)
  • Thu80%(51 flights)
  • Fri76%(49 flights)
  • Sat83%(36 flights)
  • Sun83%(46 flights)
On-time by departure window
  • 9 AM–12 PM83%(18 flights)
  • 12–3 PM83%(275 flights)
  • 3–6 PM64%(14 flights)
  • 6–9 PM92%(13 flights)
On-time trend by month
88%
May

Jun 83% → May 88% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202580%30
August 202590%31
September 202593%30
October 202567%30
November 202579%28
December 202584%19
January 202673%11
February 202686%29
March 202679%29
April 202686%28
May 202688%25
Departures on time
85%
Diverted
0.6%
Flights flown
320
Months covered
12

Same route, other flights

Keep nerding

Based on 326 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.