Alaska AirlinesAS
live
Direct flights from Santa Rosa (STS) to Seattle (SEA): 7 nonstop departures observed each week across 1 airline. The nonstop covers 995 km, an estimated 1 hour 47 minutes in the air. Measured by Pro Flight Search from live flight boards at Santa Rosa and Seattle. Updated 14 September 2026 at 11:23 UTC.
STS
Santa Rosa
tracking
SEA
Seattle
busy · +21
995 km · ~1h 47m est.
Running clean · 1 airline · 7x weekly · nonstop
72 / 100
route health from live STS and SEA delay boards
Flight time~1h 47mestimated from route distance
Weekly departures7x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska 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 daysAirports right now
live boardsnext sweep in 120s
How the Santa Rosa to Seattle route actually runs
Pro Flight Search records official board updates for nonstop STS to SEA 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 — Santa Rosa (STS) to Seattle (SEA) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/STS-SEA
STS to SEA questions
Is STS–SEA running on time right now?
Mostly on schedule. The arrival side at SEA is the weaker end, route health score 72/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on STS–SEA?
Operators schedule morning departures around 07:03 and evening departures around 17:34 from STS. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SEA delay card to confirm conditions when you'd arrive.
How long is the flight from STS to SEA?
Great-circle distance is 995 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 100–115 min gate-to-gate on this route.
How often does STS–SEA fly?
Alaska Airlines runs the route with about 14 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
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