Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

ASA21

Operated by Alaska Airlines

Live map

Live map filtered to ASA21. Shown when the flight is currently airborne.

Route airports View route page →

Departure

JFK KJFK VFR

John F. Kennedy International Airport

New York, US

Local time
21:07 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
13 ft
Coordinates
40.6394, -73.7793

cloud Weather

Wind
0° / 0 kt
Visibility
10 SM
Ceiling
FEW 4,500 ft, FEW 6,000 ft, SCT 8,000 ft, BKN 25,000 ft
Temp / Dew
24°C / 22°C
Altimeter
30.04 inHg

Obs: 2026-08-29T00:51:00.000Z

Raw METAR / TAF 
METAR KJFK 290051Z 00000KT 10SM FEW045 FEW060 SCT080 BKN250 24/22 A3004 RMK AO2 SLP172 T02390217 $

TAF KJFK 282320Z 2900/3006 19010KT P6SM VCSH BKN050 FM290030 33010KT P6SM SCT040 SCT070 FM290900 01008KT P6SM FEW040 FM291900 20004KT P6SM FEW250 FM300200 23005KT P6SM FEW250

warning FAA Advisories

  • Ground Delay: other (avg 2 hours and 1 minute)

flight Live Traffic

flight_takeoff 189 Departures
flight_land 184 Arrivals

Arrival

SEA KSEA VFR

Seattle–Tacoma International Airport

Seattle, US

Local time
18:07 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
210° / 4 kt
Visibility
10 SM
Ceiling
FEW 3,500 ft, BKN 6,000 ft
Temp / Dew
21°C / 11°C
Altimeter
29.99 inHg

Obs: 2026-08-29T00:53:00.000Z

Raw METAR / TAF 
METAR KSEA 290053Z 21004KT 10SM FEW035 BKN060 21/11 A2999 RMK AO2 SLP160 T02110106 $

TAF KSEA 282322Z 2900/3006 23009KT P6SM SCT025 BKN050 FM290200 32006KT P6SM BKN050 FM290800 19007KT P6SM -SHRA OVC030 FM291100 19006KT P6SM -SHRA BKN025 OVC030 FM291800 21007KT P6SM -SHRA SCT020 OVC030 FM292000 23008KT P6SM -SHRA SCT025 BKN040

flight Live Traffic

flight_takeoff 166 Departures
flight_land 176 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A2D573 JFK → SEA Jul 26, 11:25 UTCJul 26, 17:05 UTC5h 40m - -
2026-07-25 ADD2AD JFK → SEA Jul 25, 11:30 UTCJul 25, 17:10 UTC5h 40m - -
2026-07-25 ADD2AD JFK → SEA Jul 25, 11:29 UTCJul 25, 16:51 UTC5h 22m +29m -10m
2026-07-24 AD8766 JFK → SEA Jul 24, 11:20 UTCJul 24, 17:00 UTC5h 40m - -
2026-07-23 A715C6 JFK → SEA Jul 23, 11:20 UTCJul 23, 17:00 UTC5h 40m - -
2026-07-21 A6C6C8 JFK → SEA Jul 21, 11:35 UTCJul 21, 17:30 UTC5h 55m - -
2026-07-20 A2228B JFK → SEA Jul 20, 11:35 UTCJul 20, 17:20 UTC5h 45m - -
2026-07-19 AB9276 JFK → SEA Jul 19, 18:01 UTCJul 19, 23:06 UTC5h 5m +421m -1m
2026-07-19 AB9276 JFK → SEA Jul 19, 17:40 UTCJul 19, 23:25 UTC5h 45m - -
2026-07-17 A2228B JFK → SEA Jul 17, 11:30 UTCJul 17, 16:49 UTC5h 20m - -
2026-07-16 A78FFA JFK → SEA Jul 16, 11:30 UTCJul 16, 17:00 UTC5h 30m - -
2026-07-15 A30BCE JFK → SEA Jul 15, 11:40 UTCJul 15, 17:05 UTC5h 25m - -
2026-07-14 A622BC JFK → SEA Jul 14, 11:25 UTCJul 14, 16:40 UTC5h 15m - -
2026-07-13 A262AD JFK → SEA Jul 13, 11:35 UTCJul 13, 16:50 UTC5h 15m - -
2026-07-12 A4B7D7 JFK → SEA Jul 12, 11:20 UTCJul 12, 16:40 UTC5h 20m - -
2026-07-12 A4B7D7 JFK → SEA Jul 12, 11:18 UTCJul 12, 16:28 UTC5h 10m +18m +11m
2026-07-11 A4CE21 JFK → SEA Jul 11, 11:25 UTCJul 11, 16:50 UTC5h 25m - -
2026-07-10 A1CC1F - Jul 10, 11:40 UTCJul 10, 16:40 UTC5h 0m - -
2026-07-10 A1CC1F - Jul 10, 11:20 UTCJul 10, 11:35 UTC15m - -
2026-07-09 ACCD10 JFK → SEA Jul 9, 11:45 UTCJul 9, 17:10 UTC5h 25m - -
2026-07-08 A2B919 JFK → SEA Jul 8, 11:30 UTCJul 8, 16:50 UTC5h 20m - -
2026-07-07 A5C4E2 JFK → SEA Jul 7, 11:41 UTCJul 7, 16:28 UTC4h 47m +41m -4m
2026-07-07 A5C4E2 JFK → SEA Jul 7, 11:20 UTCJul 7, 16:40 UTC5h 20m - -
2026-07-06 ADB653 JFK → SEA Jul 6, 13:19 UTCJul 6, 18:13 UTC4h 54m +139m +19m
2026-07-06 ADB653 JFK → SEA Jul 6, 13:20 UTCJul 6, 18:30 UTC5h 10m - -
2026-07-05 AD4AFB JFK → SEA Jul 5, 11:45 UTCJul 5, 17:20 UTC5h 35m - -
2026-07-04 ACFBFD JFK → SEA Jul 4, 11:35 UTCJul 4, 16:55 UTC5h 20m - -
2026-07-03 A9672C JFK → SEA Jul 3, 11:40 UTCJul 3, 17:10 UTC5h 30m - -
2026-07-02 A6CE36 JFK → SEA Jul 2, 11:35 UTCJul 2, 17:05 UTC5h 30m - -
2026-07-01 A602AB JFK → SEA Jul 1, 11:25 UTCJul 1, 16:40 UTC5h 15m - -

Performance history

Flights tracked
146 showing last 30
Avg arrival delay
+3m
On-time arrival
80% 80% on time
Aircraft used
23

Monthly activity 4 months

Month Flights tracked
July 2026 30
June 2026 38
May 2026 42
April 2026 36

ASA21 frequently asked

Where does flight ASA21 fly?
ASA21 (Alaska Airlines) flies from JFK to SEA. View the full route page.
How long is flight ASA21?
Based on observed flights, ASA21 takes on average 5h 13m from takeoff to landing.
How often does ASA21 fly?
ASA21 has been observed flying several times a week in our tracking data. We've recorded 146 flights under this callsign.
Is flight ASA21 usually on time?
Across recent flights, ASA21 arrives with an average 3-minute delay. 80% of flights arrive within 15 minutes of schedule.
What aircraft operates flight ASA21?
ASA21 has been operated by 23 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track ASA21 live?
Yes. When ASA21 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.