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Flight Reliability

DL 2507 · Delta Air Lines

Austin → Miami (AUS–MIA)96% of its flights flew this route. The rest (SMF–DTW, GRB–MSP) are included in these numbers.

90
Nerd Approved
WanderNerd Reliability Score
88%
Arrive within 15 minutes
4 min early
Average arrival delay
1.5%
Cancelled
12 min early
Median arrival delay

Based on 200 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 9 AM–12 PM arrived on time 90% of the time, against 87% between 6–9 AM.

Saturdays have been rough.

DL 2507 arrived on time 93% of the time on Tuesdays and just 76% on Saturdays. That gap is worth planning around.

Better than the AUS–MIA route average.

DL 2507 arrived on time 88% of the time, versus 79% across the AUS–MIA route.

Better than the Delta Air Lines network average.

DL 2507 arrived on time 88% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon93%(27 flights)
  • Tue93%(30 flights)
  • Wed93%(28 flights)
  • Thu89%(28 flights)
  • Fri86%(28 flights)
  • Sat76%(29 flights)
  • Sun89%(27 flights)
On-time by departure window
  • 6–9 AM87%(95 flights)
  • 9 AM–12 PM90%(94 flights)
  • 12–3 PM—(1 flights)
  • 9 PM–12 AM—(7 flights)
On-time trend by month
90%
May

Nov 100% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 2025100%11
December 202584%31
January 202693%30
February 202689%28
March 202681%31
April 202693%28
May 202690%31
Departures on time
91%
Diverted
0%
Flights flown
197
Months covered
8

Same route, other flights

Keep nerding

Based on 200 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.