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Flight Reliability

DL 4163 · Delta Air Lines

Austin → Nashville (AUS–BNA)

71
Usually Fine
WanderNerd Reliability Score
71%
Arrive within 15 minutes
22 min
Average arrival delay
0.6%
Cancelled
4 min early
Median arrival delay

Based on 310 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

DL 4163 departing between 3–6 PM arrived on time 80% of the time, versus 71% between 6–9 PM.

Thursdays have been rough.

DL 4163 arrived on time 85% of the time on Saturdays and just 58% on Thursdays. That gap is worth planning around.

A bit behind the AUS–BNA route.

DL 4163 arrived on time 71% of the time, versus 78% across the AUS–BNA route.

Lagging the Delta Air Lines network.

DL 4163 arrived on time 71% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon80%(51 flights)
  • Tue77%(51 flights)
  • Wed69%(49 flights)
  • Thu58%(50 flights)
  • Fri73%(48 flights)
  • Sat85%(13 flights)
  • Sun63%(46 flights)
On-time by departure window
  • 3–6 PM80%(10 flights)
  • 6–9 PM71%(298 flights)
On-time trend by month
60%
May

Jun 64% → May 60% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%25
July 202544%23
August 202564%28
September 202573%30
October 202570%27
November 202583%24
December 202574%27
January 2026100%24
February 202686%22
March 202667%27
April 202665%26
May 202660%25
Departures on time
74%
Diverted
0%
Flights flown
308
Months covered
12

Same route, other flights

Keep nerding

Based on 310 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.