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Flight Reliability

DL 3039 · Delta Air Lines

CHA → Atlanta (CHA–ATL)96% of its flights flew this route. The rest (CVG–ATL, BNA–ATL) are included in these numbers.

87
Pretty Reliable
WanderNerd Reliability Score
92%
Arrive within 15 minutes
3 min early
Average arrival delay
3.2%
Cancelled
16 min early
Median arrival delay

Based on 158 historical flights. Data through May 2026.

What the data says

Tuesday is the weak spot.

DL 3039 arrived on time 96% of the time on Mondays. On Tuesdays: 86%.

Better than the CHA–ATL route average.

DL 3039 arrived on time 92% of the time, versus 84% across the CHA–ATL route.

Better than the Delta Air Lines network average.

DL 3039 arrived on time 92% of the time, versus 81% across the Delta Air Lines network.

Keep a backup plan handy.

DL 3039 was cancelled 3.2% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon96%(22 flights)
  • Tue86%(22 flights)
  • Wed91%(22 flights)
  • Thu95%(21 flights)
  • Fri95%(20 flights)
  • Sat89%(26 flights)
  • Sun95%(20 flights)
On-time by departure window
  • 6–9 AM93%(146 flights)
  • 9 AM–12 PM—(2 flights)
  • 3–6 PM—(5 flights)
On-time trend by month
97%
May

Jun 87% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%23
July 202597%31
August 202580%10
January 202696%24
February 2026100%10
April 202685%20
May 202697%30
Departures on time
90%
Diverted
0%
Flights flown
153
Months covered
9

Same route, other flights

Keep nerding

Based on 158 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.