Live tracking not available yet
AS521 has a schedule in our database but isn't on the airport board right now. Live position data typically appears within a few hours of departure.
Flight Status
Scheduled
Route Info
SEA
Seattle–Tacoma International Airport
Seattle
Gate N2 Scheduled 11:28 AM
Actual 11:28 AM
SJC
Norman Y. Mineta San Jose International Airport
San Jose
TB Gate 31 Scheduled 1:42 PM
Actual 1:42 PM
Baggage claim B1
2h 14m flight time
Daily
Recent Flights
No flight history yet
History builds as this flight gets tracked
Schedule
Operates
Daily
Departure
11:28 AM
Arrival
1:42 PM
Duration
2h 14m
Aircraft
Airbus A330-900neo (mixed)
Gate
N2
31
Actual
11:28
13:42
Baggage
Carousel B1
Operating Days
Mo
Tu
We
Th
Fr
Sa
Su
Upcoming
Wed, Mar 18
Thu, Mar 19
Fri, Mar 20
Sat, Mar 21
Sun, Mar 22
Mon, Mar 23
Tue, Mar 24
Schedule valid
Feb 22 —
May 24, 2026