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flight_takeoff Flight

ASA421

Operated by Alaska Airlines

Live map

Live map filtered to ASA421. Shown when the flight is currently airborne.

Route airports View route page →

Departure

PDX KPDX VFR

Portland International Airport

Portland, US

Local time
03:27 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
31 ft
Coordinates
45.5887, -122.5980

cloud Weather

Wind
0° / 0 kt
Visibility
10 SM
Ceiling
CLR
Temp / Dew
8°C / 4°C
Altimeter
30.23 inHg

Obs: 2026-05-30T09:53:00.000Z

Raw METAR / TAF 
METAR KPDX 300953Z 00000KT 10SM CLR 08/04 A3023 RMK AO2 SLP235 T00830044 $

TAF KPDX 300903Z 3009/3106 32005KT P6SM BKN050 FM301900 31008KT P6SM SCT250

flight Live Traffic

flight_takeoff 42 Departures
flight_land 35 Arrivals

Arrival

SFO KSFO MVFR

San Francisco International Airport

San Francisco, US

Local time
03:27 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
240° / 5 kt
Visibility
10 SM
Ceiling
OVC 1,200 ft
Temp / Dew
13°C / 10°C
Altimeter
30.09 inHg

Obs: 2026-05-30T09:56:00.000Z

Raw METAR / TAF 
METAR KSFO 300956Z 24005KT 10SM OVC012 13/10 A3009 RMK AO2 SLP190 T01280100

TAF KSFO 300900Z 3009/3112 27008KT P6SM OVC012 FM301800 28012KT P6SM SKC FM302300 27022KT P6SM SKC FM310600 28012KT P6SM SKC

flight Live Traffic

flight_takeoff 145 Departures
flight_land 102 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-29 AC7A5B PDX → SFO May 29, 17:05 UTCMay 29, 23:45 UTC6h 40m - -
2026-05-28 ACBE34 PDX → SFO May 28, 16:35 UTCMay 28, 23:50 UTC7h 15m - -
2026-05-27 A78FFA PDX → SFO May 27, 19:45 UTCMay 27, 22:10 UTC2h 25m - -
2026-05-27 A78FFA PDX → SFO May 27, 19:40 UTCMay 27, 23:21 UTC3h 41m +205m +12m
2026-05-26 AD6755 PDX → SFO May 26, 16:35 UTCMay 26, 23:39 UTC7h 5m - -
2026-05-25 A5939C PDX → SFO May 25, 16:30 UTCMay 25, 23:49 UTC7h 19m - -
2026-05-24 ADB653 PDX → SFO May 24, 16:40 UTCMay 24, 23:46 UTC7h 6m - -
2026-05-23 AD3C1F PDX → SFO May 23, 16:40 UTCMay 23, 23:50 UTC7h 10m - -
2026-05-22 A4F5A0 PDX → SFO May 22, 16:35 UTCMay 22, 18:50 UTC2h 15m - -
2026-05-22 A4F5A0 PDX → SFO May 22, 16:43 UTCMay 22, 20:09 UTC3h 26m +28m -3m
2026-05-21 A6B7EC PDX → SFO May 21, 17:00 UTCMay 22, 00:05 UTC7h 5m - -
2026-05-20 A9D63B PDX → SFO May 20, 16:30 UTCMay 20, 23:40 UTC7h 10m - -
2026-05-19 A5939C PDX → SFO May 19, 16:30 UTCMay 19, 23:30 UTC7h 0m - -
2026-05-18 ADD2AD PDX → SFO May 18, 16:20 UTCMay 18, 23:45 UTC7h 24m - -
2026-05-17 A61B4E PDX → SFO May 17, 16:25 UTCMay 17, 23:35 UTC7h 10m - -
2026-05-16 A5521C PDX → SFO May 16, 16:35 UTCMay 16, 23:40 UTC7h 5m - -
2026-05-15 AC7A5B PDX → SFO May 15, 16:40 UTCMay 15, 23:40 UTC7h 0m - -
2026-05-14 A79768 PDX → SFO May 14, 16:30 UTCMay 14, 23:45 UTC7h 15m - -
2026-05-13 A5DB2C PDX → SFO May 13, 06:30 UTCMay 13, 09:30 UTC3h 0m - -
2026-05-12 A59D63 PDX → SFO May 12, 06:15 UTCMay 12, 09:25 UTC3h 10m - -
2026-05-11 A9E8CE PDX → SFO May 11, 06:15 UTCMay 11, 09:35 UTC3h 20m - -
2026-05-10 A96E9A PDX → SFO May 10, 06:20 UTCMay 10, 09:30 UTC3h 10m - -
2026-05-10 A96E9A PDX → SFO May 10, 06:33 UTCMay 10, 09:31 UTC2h 58m +38m -4m
2026-05-09 A2EBBD PDX → SFO May 9, 06:35 UTCMay 9, 09:40 UTC3h 5m - -
2026-05-08 A3133C PDX → SFO May 8, 06:30 UTCMay 8, 09:39 UTC3h 10m - -
2026-05-07 A29908 PDX → SFO May 7, 06:35 UTCMay 7, 10:05 UTC3h 30m - -
2026-05-06 A2E098 PDX → SFO May 6, 06:25 UTCMay 6, 09:40 UTC3h 15m - -
2026-05-05 AD036B PDX → SFO May 5, 06:20 UTCMay 5, 09:35 UTC3h 15m - -
2026-05-05 AD036B PDX → SFO May 5, 06:19 UTCMay 5, 09:36 UTC3h 17m +24m +7m
2026-05-04 A61F05 PDX → SFO May 4, 06:25 UTCMay 4, 09:55 UTC3h 30m - -

Performance history

Flights tracked
62 showing last 30
Avg arrival delay
+3m
On-time arrival
100% 100% on time
Aircraft used
24

Monthly activity 2 months

Month Flights tracked
May 2026 34
April 2026 28

ASA421 frequently asked

Where does flight ASA421 fly?
ASA421 (Alaska Airlines) flies from PDX to SFO. View the full route page.
How long is flight ASA421?
Based on observed flights, ASA421 takes on average 5h 0m from takeoff to landing.
How often does ASA421 fly?
ASA421 has been observed flying daily in our tracking data. We've recorded 62 flights under this callsign.
Is flight ASA421 usually on time?
Across recent flights, ASA421 arrives with an average 3-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight ASA421?
ASA421 has been operated by 24 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track ASA421 live?
Yes. When ASA421 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.