Flight profile · Alaska Airlines
AS516
Seattle (SEA) to Fort Lauderdale (FLL) · scheduled 7:55 AM – 10:30 PM
How AS516 performs
1,066 operations, 2023-07-01 to 2026-06-30.
AS516 arrived on time 80.0% of the time, against 81.4% for all SEA → FLL flights — this specific departure is 1.4 percentage points worse than the route as a whole. Against Alaska Airlines’s own flights on this route it is 1.8 points worse.
Source: US DOT Bureau of Transportation Statistics · 1,066 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AS516 | 80.0% | 1.31% | -7 min | 5.3% | 1,066 |
| Alaska Airlines on SEA → FLL | 81.9% | 1.67% | -7 min | 4.3% | 1,558 |
| All SEA → FLL flights | 81.4% | 1.40% | -7 min | 4.7% | 2,650 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does AS516 run worse on particular days?
Tuesday is historically the most reliable day and Sunday the least, a gap of 16.8 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Data and methodology
Calculated by FlyerIntel from 1,066 records of AS516 operating SEA → FLL, 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.