Flight Reliability
DL 3137 · Delta Air Lines
Atlanta → Charlotte (ATL–CLT)
54
A Little Dicey
WanderNerd Reliability Score
- 68%
- Arrive within 15 minutes
- 15 min
- Average arrival delay
- 4.0%
- Cancelled
- 1 min
- Median arrival delay
Based on 100 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
DL 3137 departing between 6–9 PM arrived on time 72% of the time, versus 62% between 9 PM–12 AM.
Sunday scaries are real for this one.
DL 3137 arrived on time 80% of the time on Mondays and just 58% on Sundays. That gap is worth planning around.
Lagging the ATL–CLT route.
DL 3137 arrived on time 68% of the time, versus 80% across the ATL–CLT route.
Lagging the Delta Air Lines network.
DL 3137 arrived on time 68% of the time, versus 81% across the Delta Air Lines network.
The breakdown
- Mon80%(25 flights)
- Tue—(2 flights)
- Wed—(0 flights)
- Thu60%(20 flights)
- Fri76%(21 flights)
- Sat—(1 flights)
- Sun58%(26 flights)
- 6–9 PM72%(58 flights)
- 9 PM–12 AM62%(37 flights)
69%
Dec
Jun 36% → Dec 69% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 36% | 14 |
| July 2025 | 77% | 13 |
| August 2025 | 77% | 13 |
| September 2025 | 75% | 12 |
| October 2025 | 81% | 16 |
| November 2025 | 60% | 10 |
| December 2025 | 69% | 16 |
- Departures on time
- 69%
- Diverted
- 1.0%
- Flights flown
- 95
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 100 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.