Delta Air LinesDL
Flights DL8851 17:10 Th
live
Direct flights from Sacramento (SMF) to Seattle (BFI): 2 nonstop departures observed each week across 2 airlines. No cancellations were recorded across the 1 tracked flight. The nonstop covers 984 km, an estimated 1 hour 46 minutes in the air. Measured by Pro Flight Search from live flight boards at Sacramento and Seattle. Updated 29 October 2026 at 17:18 UTC.
SMF
Sacramento
busy · +17
BFI
Seattle
tracking
984 km · ~1h 46m est.
Running clean · 2 airlines · 2x weekly · nonstop
78 / 100
route health from live SMF and BFI delay boards
0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Flight time~1h 46mestimated from route distance
Weekly departures2x2 direct airlines on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Delta Air LinesSouthwest Airlines
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 daysSouthwest AirlinesWN
Flights WN3972 05:05 Th
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 boardsnext sweep in 120s
How the Sacramento to Seattle route actually runs
Pro Flight Search records official board updates for nonstop SMF 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: Sacramento (SMF) to Seattle (BFI) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SMF-BFI
SMF to BFI questions
Is SMF–BFI running on time right now?
Mostly on schedule. The departure side at SMF is the weaker end, route health score 78/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on SMF–BFI?
Operators schedule morning departures around 05:05 and evening departures around 17:10 from SMF. Earlier flights typically land before destination-airport delays accumulate later in the day; check the BFI delay card to confirm conditions when you'd arrive.
How long is the flight from SMF to BFI?
Great-circle distance is 984 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 99–114 min gate-to-gate on this route.
How often does SMF–BFI fly?
2 carriers operate this route, around 2 flights a week between them. Compare carrier days and times in the airline list above.
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