Alaska Airlines
AS1399San Jose to Seattle
Alaska Airlines flight AS1399 flies from San Jose (SJC) to Seattle Tacoma (SEA), 1,122 km. Over October 2025 to July 2026 it usually arrives about 6 minutes early: 88% of 53 flights arrived within 15 minutes of schedule and 1.9% were cancelled (US Department of Transportation data).
On-time record, last 12 months
88%
on time (within 15 min)
8%
more than 30 min late
1.9%
cancelled
-6 min
average arrival vs schedule
Every operation of AS1399, October 2025 to July 2026: 53 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as AS1399
Other flights from San Jose to Seattle
More about San Jose (SJC) and Seattle Tacoma (SEA).
Embed this on your site
A live badge for travel blogs, forums and trip reports. It updates as new data comes in, and links back here for the full stats.
Dark badge, HTML
<a href="https://tripstow.com/flights/as1399" title="AS1399 is on time 88% of the time on TripStow"><img src="https://tripstow.com/badge/flights/as1399.svg" alt="AS1399 is on time 88% of the time" width="360" height="88" loading="lazy"></a>
Light badge, HTML
<a href="https://tripstow.com/flights/as1399" title="AS1399 is on time 88% of the time on TripStow"><img src="https://tripstow.com/badge/flights/as1399.svg?theme=light" alt="AS1399 is on time 88% of the time" width="360" height="88" loading="lazy"></a>Markdown, for forums and README files
[](https://tripstow.com/flights/as1399)Flying soon?
Forward your booking to TripStow and get your trip built for you, with check-in reminders, punctuality for every flight and a map of everywhere you have been.
Start free