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Flight Reliability

DL 4067 · Delta Air Lines

Austin → MFE (AUS–MFE)100% of its flights flew this route. The rest (HPN–DTW) are included in these numbers.

90
Nerd Approved
WanderNerd Reliability Score
86%
Arrive within 15 minutes
6 min
Average arrival delay
0.7%
Cancelled
11 min early
Median arrival delay

Based on 306 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

DL 4067 arrived on time 90% of the time on Thursdays. On Sundays: 77%.

A bit ahead of the Delta Air Lines network.

DL 4067 arrived on time 86% of the time, versus 81% across the Delta Air Lines network.

Trending in the right direction.

DL 4067 arrived on time 85% of the time over the last three months in the data, compared with 76% in the three months before that.

The breakdown

On-time by weekday
  • Mon84%(49 flights)
  • Tue84%(51 flights)
  • Wed90%(49 flights)
  • Thu90%(51 flights)
  • Fri88%(51 flights)
  • Sat—(5 flights)
  • Sun77%(47 flights)
On-time by departure window
  • 3–6 PM—(2 flights)
  • 6–9 PM—(2 flights)
  • 9 PM–12 AM86%(299 flights)
On-time trend by month
83%
May

Jun 92% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202592%25
July 202574%23
August 202592%25
September 202596%26
October 202596%27
November 202592%26
December 202585%27
January 202673%26
February 202670%23
March 202689%26
April 202685%26
May 202683%23
Departures on time
82%
Diverted
0.3%
Flights flown
303
Months covered
12

Same route, other flights

Keep nerding

Based on 306 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.