Flight Reliability
DL 4836 · Delta Air Lines
CHA → Atlanta (CHA–ATL)87% of its flights flew this route. The rest (RIC–MSP, ALB–DTW) are included in these numbers.
70
Usually Fine
WanderNerd Reliability Score
- 72%
- Arrive within 15 minutes
- 26 min
- Average arrival delay
- 0.6%
- Cancelled
- 5 min early
- Median arrival delay
Based on 168 historical flights. Data through May 2026.
What the data says
The 3–6 PM departure wins.
DL 4836 departing between 3–6 PM arrived on time 91% of the time, versus 71% between 12–3 PM.
Monday is the weak spot.
DL 4836 arrived on time 77% of the time on Fridays. On Mondays: 67%.
Lagging the CHA–ATL route.
DL 4836 arrived on time 72% of the time, versus 84% across the CHA–ATL route.
Lagging the Delta Air Lines network.
DL 4836 arrived on time 72% of the time, versus 81% across the Delta Air Lines network.
The breakdown
- Mon67%(24 flights)
- Tue73%(30 flights)
- Wed75%(28 flights)
- Thu68%(22 flights)
- Fri77%(22 flights)
- Sat73%(15 flights)
- Sun69%(26 flights)
- 6–9 AM—(9 flights)
- 12–3 PM71%(147 flights)
- 3–6 PM91%(11 flights)
50%
Dec
Jun 72% → Dec 50% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 72% | 18 |
| July 2025 | 68% | 25 |
| August 2025 | 91% | 22 |
| September 2025 | 65% | 17 |
| October 2025 | 77% | 26 |
| November 2025 | 79% | 19 |
| December 2025 | 50% | 26 |
- Departures on time
- 74%
- Diverted
- 0%
- Flights flown
- 167
- Months covered
- 10
Same route, other flights
Keep nerding
Based on 168 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.