Flight Reliability
DL 562 · Delta Air Lines
Seattle → Atlanta (SEA–ATL)
85
Pretty Reliable
WanderNerd Reliability Score
- 84%
- Arrive within 15 minutes
- 17 min
- Average arrival delay
- 0.8%
- Cancelled
- 10 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Saturday is the weak spot.
DL 562 arrived on time 90% of the time on Wednesdays. On Saturdays: 78%.
The breakdown
- Mon80%(51 flights)
- Tue90%(51 flights)
- Wed90%(52 flights)
- Thu85%(52 flights)
- Fri79%(52 flights)
- Sat78%(51 flights)
- Sun87%(52 flights)
77%
May
Jun 83% → May 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 29 |
| July 2025 | 77% | 31 |
| August 2025 | 87% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 90% | 31 |
| November 2025 | 86% | 29 |
| December 2025 | 77% | 30 |
| January 2026 | 80% | 30 |
| February 2026 | 93% | 28 |
| March 2026 | 90% | 31 |
| April 2026 | 80% | 30 |
| May 2026 | 77% | 31 |
- Departures on time
- 84%
- Diverted
- 0.3%
- Flights flown
- 361
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 365 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.