Flight Reliability
DL 2124 · Delta Air Lines
Charleston → Atlanta (CHS–ATL)
96
Nerd Approved
WanderNerd Reliability Score
- 93%
- Arrive within 15 minutes
- 5 min early
- Average arrival delay
- 1.4%
- Cancelled
- 12 min early
- Median arrival delay
Based on 364 historical flights. Data through May 2026.
What the data says
Tuesday is the weak spot.
DL 2124 arrived on time 98% of the time on Fridays. On Tuesdays: 90%.
A bit ahead of the CHS–ATL route.
DL 2124 arrived on time 93% of the time, versus 89% across the CHS–ATL route.
Better than the Delta Air Lines network average.
DL 2124 arrived on time 93% of the time, versus 81% across the Delta Air Lines network.
Slipping a little lately.
DL 2124 arrived on time 92% of the time over the last three months in the data, compared with 95% in the three months before that.
The breakdown
- Mon90%(52 flights)
- Tue90%(51 flights)
- Wed90%(52 flights)
- Thu96%(52 flights)
- Fri98%(51 flights)
- Sat96%(50 flights)
- Sun92%(51 flights)
97%
May
Jun 90% → May 97% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 90% | 29 |
| July 2025 | 94% | 31 |
| August 2025 | 90% | 31 |
| September 2025 | 97% | 30 |
| October 2025 | 94% | 31 |
| November 2025 | 93% | 30 |
| December 2025 | 97% | 30 |
| January 2026 | 93% | 30 |
| February 2026 | 96% | 27 |
| March 2026 | 90% | 29 |
| April 2026 | 90% | 30 |
| May 2026 | 97% | 31 |
- Departures on time
- 94%
- Diverted
- 0%
- Flights flown
- 359
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 364 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.