Apparatus

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flight_takeoff Flight

ASA139

Operated by Alaska Airlines

Live map

Live map filtered to ASA139. Shown when the flight is currently airborne.

Route airports View route page →

Departure

SFO KSFO IFR

San Francisco International Airport

San Francisco, US

Local time
22:05 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
290° / 13 kt
Visibility
10 SM
Ceiling
FEW 300 ft, BKN 800 ft, OVC 1,100 ft
Temp / Dew
13°C / 11°C
Altimeter
30.11 inHg

Obs: 2026-05-30T04:56:00.000Z

Raw METAR / TAF 
METAR KSFO 300456Z 29013KT 10SM FEW003 BKN008 OVC011 13/11 A3011 RMK AO2 SLP195 T01280106

TAF KSFO 300301Z 3003/3106 27012KT P6SM BKN013 FM300600 26010KT P6SM OVC009 FM300900 26005KT P6SM BKN012 FM301700 29010KT P6SM SKC FM302000 28018KT P6SM SKC

warning FAA Advisories

  • Ground Delay: low ceilings (avg 1 hour and 45 minutes)

flight Live Traffic

flight_takeoff 238 Departures
flight_land 255 Arrivals

Arrival

SEA KSEA VFR

Seattle–Tacoma International Airport

Seattle, US

Local time
22:05 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
360° / 11 kt
Visibility
10 SM
Ceiling
OVC 3,400 ft
Temp / Dew
12°C / 6°C
Altimeter
30.14 inHg

Obs: 2026-05-30T04:53:00.000Z

Raw METAR / TAF 
METAR KSEA 300453Z 36011KT 10SM OVC034 12/06 A3014 RMK AO2 SLP213 T01170061 $

TAF KSEA 300300Z 3003/3106 03009KT P6SM SCT050 BKN060 FM301200 14005KT P6SM BKN030 FM301900 28006KT P6SM BKN070 FM302200 31008KT P6SM SCT070 BKN250

flight Live Traffic

flight_takeoff 291 Departures
flight_land 267 Arrivals

Recent history last 10

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-04-21 A98386 SFO → SEA Apr 21, 12:01 UTCApr 21, 12:40 UTC40m - -
2026-04-21 A98386 SFO → SEA Apr 21, 12:01 UTCApr 21, 12:33 UTC32m +1m +3m
2026-04-20 AD438D SFO → SEA Apr 20, 12:10 UTCApr 20, 12:55 UTC45m - -
2026-04-19 AD639E SFO → SEA Apr 19, 12:05 UTCApr 19, 12:50 UTC45m - -
2026-04-18 A29551 SFO → SEA Apr 18, 12:20 UTCApr 18, 13:05 UTC45m - -
2026-04-17 ACC1EB SFO → SEA Apr 17, 12:25 UTCApr 17, 13:10 UTC45m - -
2026-04-16 A715C6 SFO → SEA Apr 16, 12:34 UTCApr 16, 13:05 UTC30m - -
2026-04-15 A52E54 SFO → SEA Apr 15, 12:15 UTCApr 15, 12:55 UTC40m - -
2026-04-14 A73220 SFO → SEA Apr 14, 12:10 UTCApr 14, 12:45 UTC35m - -
2026-04-13 AB148B - Apr 13, 12:20 UTCApr 13, 12:55 UTC35m - -

Performance history

Flights tracked
10
Avg arrival delay
+3m
On-time arrival
100% 100% on time
Aircraft used
9

Monthly activity 1 month

Month Flights tracked
April 2026 10

ASA139 frequently asked

Where does flight ASA139 fly?
ASA139 (Alaska Airlines) flies from SFO to SEA. View the full route page.
How long is flight ASA139?
Based on observed flights, ASA139 takes on average 39m from takeoff to landing.
How often does ASA139 fly?
ASA139 has been observed flying several times a week in our tracking data. We've recorded 10 flights under this callsign.
Is flight ASA139 usually on time?
Across recent flights, ASA139 arrives with an average 3-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight ASA139?
ASA139 has been operated by 9 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track ASA139 live?
Yes. When ASA139 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.