Flight profile · Delta Air Lines
DL815
Seattle (SEA) to Nashville (BNA) · scheduled 5:40 PM – 11:59 PM
How DL815 performs
678 operations, 2024-06-07 to 2026-06-30.
DL815 arrived on time 82.1% of the time, against 78.5% for all SEA → BNA flights — this specific departure is 3.6 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 1.6 points worse.
Source: US DOT Bureau of Transportation Statistics · 678 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL815 | 82.1% | 0.15% | -10 min | 6.1% | 678 |
| Delta Air Lines on SEA → BNA | 83.7% | 0.32% | -10 min | 4.9% | 1,263 |
| All SEA → BNA flights | 78.5% | 0.59% | -4 min | 3.9% | 4,102 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL815 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| ATL→CHA Atlanta to Chattanooga | 2026-01-05 – 2026-02-11 | 35 | — |
| DFW→ATL Dallas–Fort Worth to Atlanta | 2023-07-01 – 2024-06-06 | 216 | 78.1% |
| ATL→DFW Atlanta to Dallas–Fort Worth | 2023-07-01 – 2024-06-06 | 189 | 73.0% |
| MSP→BOI Minneapolis to Boise | 2024-01-08 – 2024-03-09 | 62 | — |
| MKE→SLC Milwaukee to Salt Lake City | 2023-12-16 – 2023-12-31 | 16 | — |
| ATL→JAN Atlanta to Jackson | 2023-11-05 – 2023-12-15 | 39 | — |
| JAN→ATL Jackson to Atlanta | 2023-11-05 – 2023-12-15 | 39 | — |
Because the same number has served different journeys, the statistics above describe only the route DL815 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 678 records of DL815 operating SEA → BNA, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.