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Flight Reliability

DL 1612 · Delta Air Lines

Detroit → Austin (DTW–AUS)

80
Pretty Reliable
WanderNerd Reliability Score
74%
Arrive within 15 minutes
4 min
Average arrival delay
0.6%
Cancelled
5 min early
Median arrival delay

Based on 327 historical flights. Data through May 2026.

What the data says

Mondays have been rough.

DL 1612 arrived on time 86% of the time on Tuesdays and just 64% on Mondays. That gap is worth planning around.

A bit behind the DTW–AUS route.

DL 1612 arrived on time 74% of the time, versus 80% across the DTW–AUS route.

Lagging the Delta Air Lines network.

DL 1612 arrived on time 74% of the time, versus 81% across the Delta Air Lines network.

Trending in the right direction.

DL 1612 arrived on time 86% of the time over the last three months in the data, compared with 77% in the three months before that.

The breakdown

On-time by weekday
  • Mon64%(50 flights)
  • Tue86%(49 flights)
  • Wed82%(50 flights)
  • Thu68%(50 flights)
  • Fri76%(50 flights)
  • Sat77%(26 flights)
  • Sun68%(50 flights)
On-time by departure window
  • 12–3 PM—(2 flights)
  • 3–6 PM74%(321 flights)
  • 6–9 PM—(2 flights)
On-time trend by month
87%
May

Jun 38% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202538%29
July 202543%28
August 202584%25
September 202596%26
October 202581%21
November 202560%20
December 202569%29
January 202673%30
February 202689%28
March 202681%31
April 202689%28
May 202687%30
Departures on time
78%
Diverted
0%
Flights flown
325
Months covered
12

Same route, other flights

Keep nerding

Based on 327 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.