Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

ASA521

Operated by Alaska Airlines

Live map

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

Route airports View route page →

Departure

AUS KAUS VFR

Austin Bergstrom International Airport

Austin, US

Local time
22:32 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
542 ft
Coordinates
30.1975, -97.6620

cloud Weather

Wind
160° / 10G22 kt
Visibility
10 SM
Ceiling
FEW 25,000 ft
Temp / Dew
24°C / 19°C
Altimeter
29.94 inHg

Obs: 2026-04-15T02:53:00.000Z

Raw METAR / TAF 
METAR KAUS 150253Z 16010G22KT 10SM FEW250 24/19 A2994 RMK AO2 SLP132 T02390194 53017

TAF KAUS 150259Z 1503/1606 15015G25KT P6SM BKN250 FM150500 16012KT P6SM BKN015 FM151700 17013G23KT P6SM BKN040 FM160500 17009KT P6SM BKN015

flight Live Traffic

flight_takeoff 180 Departures
flight_land 168 Arrivals

Arrival

SEA KSEA MVFR

Seattle–Tacoma International Airport

Seattle, US

Local time
20:32 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
170° / 14 kt
Visibility
6 SM
Ceiling
BKN 1,500 ft, OVC 2,300 ft
Temp / Dew
8°C / 6°C
Altimeter
29.79 inHg
Wx
-RA BR

Obs: 2026-04-15T02:53:00.000Z

Raw METAR / TAF 
METAR KSEA 150253Z 17014KT 6SM -RA BR BKN015 OVC023 08/06 A2979 RMK AO2 PK WND 18026/0200 SLP095 P0010 60024 T00780061 56022

TAF KSEA 150301Z 1503/1606 18014G20KT 6SM -RA BKN015 OVC025 FM150400 18010G20KT P6SM VCSH SCT025 OVC035 FM150900 15009KT P6SM BKN040 FM151500 21007KT P6SM VCSH SCT025 BKN035 FM151900 22010G18KT P6SM -SHRA SCT030 BKN040 FM152300 23009KT P6SM -RA SCT025 BKN035

flight Live Traffic

flight_takeoff 247 Departures
flight_land 247 Arrivals

Recent history last 3

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-04-13 A9A397 AUS → SEA Apr 13, 23:15 UTCApr 13, 23:45 UTC30m - -
2026-04-13 A70AA1 AUS → SEA Apr 13, 00:20 UTCApr 13, 01:10 UTC50m - -
2026-04-12 A70AA1 AUS → SEA Apr 12, 23:55 UTCApr 13, 01:10 UTC1h 15m - -

Performance history

Flights tracked
3
Avg arrival delay
-
On-time arrival
-
Aircraft used
2

Monthly activity 1 month

Month Flights tracked
April 2026 3

ASA521 frequently asked

Where does flight ASA521 fly?
ASA521 (Alaska Airlines) flies from AUS to SEA. View the full route page.
How long is flight ASA521?
Based on observed flights, ASA521 takes on average 52m from takeoff to landing.
How often does ASA521 fly?
ASA521 has been observed flying occasionally in our tracking data. We've recorded 3 flights under this callsign.
What aircraft operates flight ASA521?
ASA521 has been operated by 2 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.