Flight Reliability
DL 1320 · Delta Air Lines
Atlanta → Cleveland (ATL–CLE)
74
Usually Fine
WanderNerd Reliability Score
- 77%
- Arrive within 15 minutes
- 11 min
- Average arrival delay
- 2.8%
- Cancelled
- 3 min early
- Median arrival delay
Based on 363 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 1320 arrived on time 86% of the time on Saturdays and just 69% on Sundays. That gap is worth planning around.
A bit behind the Delta Air Lines network.
DL 1320 arrived on time 77% of the time, versus 81% across the Delta Air Lines network.
Trending in the right direction.
DL 1320 arrived on time 88% of the time over the last three months in the data, compared with 78% in the three months before that.
The breakdown
- Mon72%(50 flights)
- Tue81%(52 flights)
- Wed83%(52 flights)
- Thu70%(50 flights)
- Fri81%(48 flights)
- Sat86%(49 flights)
- Sun69%(52 flights)
87%
May
Jun 44% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 44% | 27 |
| July 2025 | 74% | 31 |
| August 2025 | 80% | 30 |
| September 2025 | 87% | 30 |
| October 2025 | 74% | 31 |
| November 2025 | 69% | 29 |
| December 2025 | 76% | 29 |
| January 2026 | 72% | 29 |
| February 2026 | 85% | 27 |
| March 2026 | 83% | 29 |
| April 2026 | 93% | 30 |
| May 2026 | 87% | 31 |
- Departures on time
- 79%
- Diverted
- 0%
- Flights flown
- 353
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 363 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.