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Flight Reliability

DL 1729 · Delta Air Lines

Savannah → Atlanta (SAV–ATL)84% of its flights flew this route. The rest (LAX–DEN, TYS–ATL) are included in these numbers.

95
Nerd Approved
WanderNerd Reliability Score
92%
Arrive within 15 minutes
4 min early
Average arrival delay
1.4%
Cancelled
16 min early
Median arrival delay

Based on 291 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

DL 1729 departing between 3–6 AM arrived on time 94% of the time, versus 84% between 6–9 PM.

Thursday comes out ahead.

A small edge: 95% on time on Thursdays against 89% on Saturdays.

A bit ahead of the SAV–ATL route.

DL 1729 arrived on time 92% of the time, versus 88% across the SAV–ATL route.

Better than the Delta Air Lines network average.

DL 1729 arrived on time 92% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon91%(42 flights)
  • Tue93%(43 flights)
  • Wed90%(40 flights)
  • Thu95%(42 flights)
  • Fri95%(41 flights)
  • Sat89%(37 flights)
  • Sun93%(42 flights)
On-time by departure window
  • 3–6 AM94%(232 flights)
  • 6–9 AM—(9 flights)
  • 3–6 PM86%(21 flights)
  • 6–9 PM84%(25 flights)
On-time trend by month
83%
May

Jun 87% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%30
July 202597%31
August 202597%29
September 202597%30
October 202594%31
November 202590%29
December 2025100%28
January 202690%31
April 202688%16
May 202683%30
Departures on time
92%
Diverted
0%
Flights flown
287
Months covered
11

Same route, other flights

Keep nerding

Based on 291 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.