Delta Air LinesDL
Flights DL356 08:00 Su
live
Direct flights from Fort Lauderdale (FLL) to Seattle (BFI): 1 nonstop departure observed each week across 1 airline. The nonstop covers 4,370 km, an estimated 6 hours 6 minutes in the air. Measured by Pro Flight Search from live flight boards at Fort Lauderdale and Seattle. Updated 5 November 2026 at 00:22 UTC.
FLL
Fort Lauderdale
busy · +21
BFI
Seattle
tracking
4,370 km · ~6h 06m est.
Running clean · 1 airline · 1x weekly · nonstop
72 / 100
route health from live FLL and BFI delay boards
Flight time~6h 06mestimated from route distance
Weekly departures1x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Delta 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 daysAirports right now
live boardsnext sweep in 120s
How the Fort Lauderdale to Seattle route actually runs
Pro Flight Search records official board updates for nonstop FLL to BFI 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: Fort Lauderdale (FLL) to Seattle (BFI) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/FLL-BFI
FLL to BFI questions
Is FLL–BFI running on time right now?
Mostly on schedule. The departure side at FLL is the weaker end, route health score 72/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from FLL to BFI?
Great-circle distance is 4,370 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 338–405 min gate-to-gate on this route.
How often does FLL–BFI fly?
Delta Air Lines runs the route with about 1 flight a week (sun). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at FLL and arrival-side delay at BFI, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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