Alaska AirlinesAS83% on time
Flights AS516 08:15 daily
live
Direct flights from Seattle (SEA) to Fort Lauderdale (FLL): 14 nonstop departures observed each week across 2 airlines. 92% of the last 12 tracked flights arrived within 15 minutes of schedule. The median arrival is 4 minutes early. No cancellations were recorded across the 12 tracked flights. The nonstop covers 4,368 km, an estimated 6 hours 6 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Fort Lauderdale. Updated 3 November 2026 at 22:13 UTC.
Today, SEA → FLL
Tue 3 Nov · local times- 08:17 AS516Alaska Departed FLL est. 17:07In the air · sched 17:15
- 12:11 DL338Delta Air Lines Departed ·
Checked SEA board 14:13 · FLL board 15:48
SEA
Seattle
busy · +15
FLL
Fort Lauderdale
smooth · +0
4,368 km · ~6h 06m est.
Runs reliable · 2 airlines · 14x weekly · nonstop
92% on time
of the last 12 tracked SEA → FLL flights arrived within 15 minutes
Median arrival delay is −4 min. 0 of 12 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−4 minacross the last 12 arrivals
Flight time~6h 06mestimated from route distance
Weekly departures14x2 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 12
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska AirlinesDelta Air Lines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysDelta Air LinesDL100% on time
Flights DL338 12:11 daily
History
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Conditions are tightest at SEA and FLL: a 35% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +5 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →
next sweep in 120s
How the Seattle to Fort Lauderdale route actually runs
Pro Flight Search records official board updates for nonstop SEA to FLL flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search: Seattle (SEA) to Fort Lauderdale (FLL) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SEA-FLL
SEA to FLL questions
Is SEA–FLL running on time right now?
Smooth skies ahead. The departure side at SEA is the weaker end, route health score 90/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on SEA–FLL?
Operators schedule morning departures around 08:15 from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the FLL delay card to confirm conditions when you'd arrive.
How long is the flight from SEA to FLL?
Great-circle distance is 4,368 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 338–404 min gate-to-gate on this route.
How often does SEA–FLL fly?
2 carriers operate this route, around 14 flights a week between them. Compare carrier days and times in the airline list above.
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