Alaska AirlinesAS
Flights AS421 varies Mo Th Fr Sa Su
live
Direct flights from Seattle (SEA) to San José del Cabo (SJD): 5 nonstop departures observed each week across 1 airline. The nonstop covers 2,925 km, an estimated 4 hours 15 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and San José del Cabo. Updated 14 September 2026 at 21:23 UTC.
SEA
Seattle
smooth · +2
SJD
San José del Cabo
tracking
2,925 km · ~4h 15m est.
Running clean · 1 airline · 5x weekly · nonstop
100 / 100
route health from live SEA and SJD delay boards
Flight time~4h 15mestimated from route distance
Weekly departures5x1 direct airline on the leg
Who flies it
observed on the boards · 7 daysAirports right now
live boardsnext sweep in 120s
How the Seattle to San José del Cabo route actually runs
Pro Flight Search records official board updates for nonstop SEA to SJD 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 San José del Cabo (SJD) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SEA-SJD
SEA to SJD questions
Is SEA–SJD running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from SEA to SJD?
Great-circle distance is 2,925 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 236–281 min gate-to-gate on this route.
How often does SEA–SJD fly?
Alaska Airlines runs the route with about 5 flights a week (sun, mon, thu, fri, sat). 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 SEA and arrival-side delay at SJD, 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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