Apparatus

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flight_takeoff Flight

ASA425

Operated by Alaska Airlines

Live map

Live map filtered to ASA425. Shown when the flight is currently airborne.

Route airports View route page →

Departure

SFO KSFO MVFR

San Francisco International Airport

San Francisco, US

Local time
03:56 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 141 Departures
flight_land 126 Arrivals

Arrival

BOS KBOS MVFR

Boston Logan International Airport

Boston, US

Local time
06:56 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
20 ft
Coordinates
42.3620, -71.0079

cloud Weather

Wind
280° / 11 kt
Visibility
10 SM
Ceiling
BKN 1,400 ft, BKN 2,700 ft, BKN 11,000 ft
Temp / Dew
12°C / 9°C
Altimeter
29.63 inHg

Obs: 2026-05-30T09:54:00.000Z

Raw METAR / TAF 
METAR KBOS 300954Z 28011KT 10SM BKN014 BKN027 BKN110 12/09 A2963 RMK AO2 PK WND 29026/0902 SLP032 T01170089

TAF KBOS 300901Z 3009/3112 30013G22KT P6SM SCT015 BKN030 FM301000 36020G32KT P6SM VCSH SCT010 OVC015 FM301200 03025G44KT 3SM RA BR SCT008 OVC010 FM302200 01017G28KT P6SM VCSH BKN020 FM310000 01013G20KT P6SM BKN060 FM310300 33010KT P6SM SCT250

flight Live Traffic

flight_takeoff 361 Departures
flight_land 339 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-30 A602AB SFO → BOS May 30, 03:30 UTCMay 30, 04:45 UTC1h 15m - -
2026-05-29 A67B81 SFO → BOS May 29, 03:25 UTCMay 29, 04:35 UTC1h 10m - -
2026-05-28 A9873D SFO → BOS May 28, 03:30 UTCMay 28, 04:40 UTC1h 10m - -
2026-05-28 A9873D SFO → BOS May 28, 03:39 UTCMay 28, 04:47 UTC1h 8m +18m +12m
2026-05-27 A6BBA3 SFO → BOS May 27, 03:39 UTCMay 27, 04:46 UTC1h 7m +18m +8m
2026-05-26 ACB46D SFO → BOS May 26, 03:25 UTCMay 26, 04:45 UTC1h 20m - -
2026-05-25 A6EE47 SFO → BOS May 25, 03:40 UTCMay 25, 04:55 UTC1h 15m - -
2026-05-24 A7888C SFO → BOS May 24, 03:25 UTCMay 24, 04:45 UTC1h 20m - -
2026-05-24 A7888C SFO → BOS May 24, 03:18 UTCMay 24, 04:39 UTC1h 21m -3m +1m
2026-05-23 AD4AFB SFO → BOS May 23, 03:35 UTCMay 23, 05:00 UTC1h 25m - -
2026-05-22 A6C311 SFO → BOS May 22, 03:20 UTCMay 22, 04:40 UTC1h 20m - -
2026-05-21 A7F286 SFO → BOS May 21, 03:15 UTCMay 21, 04:45 UTC1h 30m - -
2026-05-21 A7F286 SFO → BOS May 21, 03:14 UTCMay 21, 04:45 UTC1h 31m -7m -13m
2026-05-20 A6A6B7 SFO → BOS May 20, 03:30 UTCMay 20, 04:50 UTC1h 21m - -
2026-05-20 A6A6B7 SFO → BOS May 20, 03:25 UTCMay 20, 04:55 UTC1h 30m +4m -12m
2026-05-19 A6B435 SFO → BOS May 19, 03:15 UTCMay 19, 04:40 UTC1h 25m - -
2026-05-18 A5C4E2 SFO → BOS May 18, 03:20 UTCMay 18, 04:40 UTC1h 20m - -
2026-05-17 A5C4E2 SFO → BOS May 17, 03:20 UTCMay 17, 04:45 UTC1h 25m - -
2026-05-16 A7F286 SFO → BOS May 16, 03:55 UTCMay 16, 05:05 UTC1h 10m - -
2026-05-15 A7197D SFO → BOS May 15, 03:20 UTCMay 15, 04:35 UTC1h 15m - -
2026-05-14 A7A4E6 SFO → BOS May 14, 03:45 UTCMay 14, 05:00 UTC1h 15m - -
2026-05-12 A2F95C SFO → BOS May 12, 22:35 UTCMay 13, 00:40 UTC2h 5m - -
2026-05-11 A98386 SFO → BOS May 11, 21:50 UTCMay 12, 03:25 UTC5h 35m - -
2026-05-10 A67B81 SFO → BOS May 10, 21:49 UTCMay 10, 23:55 UTC2h 5m - -
2026-05-09 A30F85 SFO → BOS May 9, 21:55 UTCMay 9, 23:50 UTC1h 55m - -
2026-05-08 A5320B SFO → BOS May 8, 22:05 UTCMay 9, 00:00 UTC1h 55m - -
2026-05-07 A4B420 SFO → BOS May 7, 23:50 UTCMay 8, 01:32 UTC1h 42m +135m -7m
2026-05-07 A4B420 SFO → BOS May 7, 23:39 UTCMay 8, 01:40 UTC2h 0m - -
2026-05-06 A5C899 SFO → BOS May 6, 23:50 UTCMay 7, 01:45 UTC1h 55m - -
2026-05-05 A5DB2C SFO → BOS May 5, 22:30 UTCMay 6, 00:31 UTC2h 0m - -

Performance history

Flights tracked
61 showing last 30
Avg arrival delay
-2m
On-time arrival
100% 100% on time
Aircraft used
22

Monthly activity 2 months

Month Flights tracked
May 2026 36
April 2026 25

ASA425 frequently asked

Where does flight ASA425 fly?
ASA425 (Alaska Airlines) flies from SFO to BOS. View the full route page.
How long is flight ASA425?
Based on observed flights, ASA425 takes on average 1h 38m from takeoff to landing.
How often does ASA425 fly?
ASA425 has been observed flying daily in our tracking data. We've recorded 61 flights under this callsign.
Is flight ASA425 usually on time?
Across recent flights, ASA425 arrives 2 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight ASA425?
ASA425 has been operated by 22 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track ASA425 live?
Yes. When ASA425 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.