Apparatus

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flight_takeoff Flight

ASA521

Live map

Live map filtered to ASA521. Shown when the flight is currently airborne.

Route airports View route page →

Departure

SJC KSJC VFR

Norman Y. Mineta San Jose International Airport

San Jose, US

Local time
04:55 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
62 ft
Coordinates
37.3625, -121.9292

cloud Weather

Wind
0° / 0 kt
Visibility
10 SM
Ceiling
CLR
Temp / Dew
19°C / 16°C
Altimeter
29.95 inHg

Obs: 2026-07-14T10:53:00.000Z

Raw METAR / TAF 
METAR KSJC 141053Z AUTO 00000KT 10SM CLR 19/16 A2995 RMK AO2 SLP142 T01940161

TAF KSJC 141120Z 1412/1512 32007KT P6SM SKC

flight Live Traffic

flight_takeoff 29 Departures
flight_land 36 Arrivals

Arrival

SEA KSEA VFR

Seattle–Tacoma International Airport

Seattle, US

Local time
04:55 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
350° / 3 kt
Visibility
10 SM
Ceiling
SCT 25,000 ft
Temp / Dew
14°C / 8°C
Altimeter
30.08 inHg

Obs: 2026-07-14T10:53:00.000Z

Raw METAR / TAF 
METAR KSEA 141053Z 35003KT 10SM SCT250 14/08 A3008 RMK AO2 SLP189 T01390078 $

TAF KSEA 141120Z 1412/1518 01005KT P6SM SKC FM141900 31008KT P6SM SKC FM150700 36004KT P6SM BKN120

flight Live Traffic

flight_takeoff 237 Departures
flight_land 233 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-13 A28DE3 SJC → SEA Jul 13, 21:25 UTCJul 13, 22:55 UTC1h 30m - -
2026-07-12 ABA152 SJC → SEA Jul 12, 21:50 UTCJul 12, 23:15 UTC1h 25m - -
2026-07-11 A1CC1F SJC → SEA Jul 11, 21:41 UTCJul 11, 23:00 UTC1h 19m +25m +13m
2026-07-11 A1CC1F SJC → SEA Jul 11, 21:30 UTCJul 11, 23:05 UTC1h 35m - -
2026-07-10 A21ED4 SJC → SEA Jul 10, 21:20 UTCJul 10, 23:00 UTC1h 40m - -
2026-07-09 A1C868 SJC → SEA Jul 9, 22:25 UTCJul 10, 00:05 UTC1h 40m - -
2026-07-09 A1C868 SJC → SEA Jul 9, 21:56 UTCJul 9, 23:53 UTC1h 57m +40m +6m
2026-07-08 A2B919 SJC → SEA Jul 8, 21:30 UTCJul 8, 23:10 UTC1h 40m - -
2026-07-07 A2F95C SJC → SEA Jul 7, 21:20 UTCJul 7, 22:55 UTC1h 35m - -
2026-07-06 A9D63B SJC → SEA Jul 6, 21:36 UTCJul 6, 22:50 UTC1h 14m +20m +7m
2026-07-06 A9D63B - Jul 6, 21:25 UTCJul 6, 22:45 UTC1h 20m - -
2026-07-05 A9AB05 SJC → SEA Jul 5, 21:35 UTCJul 5, 23:10 UTC1h 35m - -
2026-07-04 A21ED4 SJC → SEA Jul 4, 21:35 UTCJul 4, 23:10 UTC1h 35m - -
2026-07-03 A9D63B SJC → SEA Jul 3, 21:35 UTCJul 3, 23:30 UTC1h 55m - -
2026-07-02 A24DC1 SJC → SEA Jul 2, 22:00 UTCJul 2, 23:45 UTC1h 45m - -
2026-07-02 A24DC1 SJC → SEA Jul 2, 21:57 UTCJul 2, 23:34 UTC1h 37m +41m -1m
2026-07-01 A5A888 SJC → SEA Jul 1, 21:25 UTCJul 1, 23:05 UTC1h 40m - -
2026-07-01 A5A888 SJC → SEA Jul 1, 21:22 UTCJul 1, 22:57 UTC1h 35m +6m +4m
2026-06-30 AD036B SJC → SEA Jun 30, 21:35 UTCJun 30, 23:25 UTC1h 50m - -
2026-06-29 A2CE05 SJC → SEA Jun 29, 21:24 UTCJun 29, 23:14 UTC1h 50m - -
2026-06-28 ACED21 - Jun 28, 23:44 UTCJun 28, 23:54 UTC10m - -
2026-06-28 ACED21 - Jun 28, 21:50 UTCJun 28, 23:54 UTC2h 5m - -
2026-06-28 ACED21 SJC → SEA Jun 28, 21:48 UTCJun 28, 23:27 UTC1h 39m +32m -1m
2026-06-27 A28A2C SJC → SEA Jun 27, 21:44 UTCJun 27, 23:25 UTC1h 40m - -
2026-06-26 A4B420 SJC → SEA Jun 26, 21:24 UTCJun 26, 23:19 UTC1h 55m - -
2026-06-25 A2F584 SJC → SEA Jun 25, 21:25 UTCJun 25, 23:05 UTC1h 40m - -
2026-06-24 AD8766 SJC → SEA Jun 24, 21:34 UTCJun 24, 23:20 UTC1h 45m - -
2026-06-23 A67F38 SJC → SEA Jun 23, 21:34 UTCJun 23, 23:14 UTC1h 40m - -
2026-06-21 AD5C30 SJC → SEA Jun 21, 21:49 UTCJun 21, 23:30 UTC1h 40m - -
2026-06-20 AD8B1D SJC → SEA Jun 20, 22:10 UTCJun 20, 23:55 UTC1h 45m - -

Performance history

Flights tracked
112 showing last 30
Avg arrival delay
+5m
On-time arrival
100% 100% on time
Aircraft used
21

Monthly activity 4 months

Month Flights tracked
July 2026 18
June 2026 37
May 2026 35
April 2026 22

ASA521 frequently asked

Where does flight ASA521 fly?
ASA521 flies from SJC to SEA. View the full route page.
How long is flight ASA521?
Based on observed flights, ASA521 takes on average 1h 37m from takeoff to landing.
How often does ASA521 fly?
ASA521 has been observed flying several times a week in our tracking data. We've recorded 112 flights under this callsign.
Is flight ASA521 usually on time?
Across recent flights, ASA521 arrives with an average 5-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight ASA521?
ASA521 has been operated by 21 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track ASA521 live?
Yes. When ASA521 is currently airborne, the live tracker map above shows its real-time position from ADS-B broadcasts. If the map is empty, the flight is not currently in the air.