Alaska AirlinesAS
Flights AS762 06:17 Mo Th Fr Su · AS1304 08:02 daily · AS1311 10:37 daily · AS659 13:31 daily
live
Direct flights from San Jose (SJC) to Seattle (SEA): 21 nonstop departures observed each week across 3 airlines. 0% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is 26 minutes late. No cancellations were recorded across the 5 tracked flights. The nonstop covers 1,122 km, an estimated 1 hour 56 minutes in the air. Measured by Pro Flight Search from live flight boards at San Jose and Seattle. Updated 21 October 2026 at 05:21 UTC.
Today, SJC → SEA
Tue 20 Oct · local times- 14:37 DL3789Delta Air Lines Left 15:01 +24 Landed 16:59
- 16:48 AS521Alaska Left 17:34 +46 Landed 19:01
- 17:42 DL3897Delta Air Lines Left 18:08 +26 Landed 20:08
- 19:33 DL4100Delta Air Lines Left 20:08 +35 Landed 21:59
- 19:40 WN1386Southwest Left 20:05 +25 Landed 22:00
- · AS1304Alaska Departed Landed 10:18
- · AS1311Alaska Departed Landed 12:52
- · AS659Alaska Departed Landed 15:44
- · DL3736Delta Air Lines Departed Landed 14:00
Checked SJC board 22:03 · SEA board 22:21
SJC
San Jose
smooth · +3
SEA
Seattle
smooth · +0
1,122 km · ~1h 56m est.
Runs rough · 3 airlines · 21x weekly · nonstop
0% on time
of the last 5 operated SJC → SEA flights arrived within 15 minutes
Median arrival delay is +26 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+26 minacross the last 5 operated legs
Flight time~1h 56mestimated from route distance
Weekly departures21x3 direct airlines on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska AirlinesDelta 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 daysHistory
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
Current conditions put the pressure at SJC: 41% odds of a 15+ minute delay and around +8 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the San Jose to Seattle route actually runs
Pro Flight Search records official board updates for nonstop SJC 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 — San Jose (SJC) to Seattle (SEA) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SJC-SEA
SJC to SEA questions
Is SJC–SEA running on time right now?
Smooth skies ahead. The departure side at SJC is the weaker end, route health score 96/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on SJC–SEA?
Operators schedule morning departures around 06:00 and evening departures around 17:42 from SJC. 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 SJC to SEA?
Great-circle distance is 1,122 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 109–126 min gate-to-gate on this route.
How often does SJC–SEA fly?
3 carriers operate this route, around 91 flights a week between them. Compare carrier days and times in the airline list above.
.