Flight OddsDL815 SEA → BNA
Delta Air Lines · Seattle, WA to Nashville, TN · 290 flights observed, 2025-07-01 to 2026-06-30 · 1,978 mi
DL815 covers more than one route in the data window — the stats below are for SEA → BNA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
84%
Median delay
-10 min
90th percentile
+33 min
Cancellation rate
0%
How often is DL815 on time?
Across 290 flights on SEA → BNA from 2025-07-01 to 2026-06-30, DL815 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +33 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 242 | 84% |
| 16-30 min | 15 | 5% |
| 31-60 min | 15 | 5% |
| 61-120 min | 13 | 4% |
| 2+ hrs | 4 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 74% | +6 min |
| 2025-08 | 27 | 85% | -1 min |
| 2025-09 | 22 | 64% | +11 min |
| 2025-10 | 31 | 71% | +4 min |
| 2025-11 | 29 | 93% | -9 min |
| 2025-12 | 31 | 81% | 0 min |
| 2026-01 | 4 | 100% | -3 min |
| 2026-03 | 24 | 88% | -10 min |
| 2026-04 | 30 | 97% | -15 min |
| 2026-05 | 31 | 94% | -8 min |
| 2026-06 | 29 | 86% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 42 | 86% |
| Tue | 42 | 76% |
| Wed | 41 | 88% |
| Thu | 41 | 88% |
| Fri | 41 | 78% |
| Sat | 39 | 87% |
| Sun | 43 | 84% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…