Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

ASA840

Operated by Alaska Airlines

Live map

Live map filtered to ASA840. Shown when the flight is currently airborne.

Route airports View route page →

Departure

BOS KBOS VFR

Boston Logan International Airport

Boston, US

Local time
00:42 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
20 ft
Coordinates
42.3620, -71.0079

cloud Weather

Wind
350° / 6 kt
Visibility
10 SM
Ceiling
BKN 4,800 ft, OVC 9,500 ft
Temp / Dew
17°C / 12°C
Altimeter
29.89 inHg

Obs: 2026-10-13T03:54:00.000Z

Raw METAR / TAF 
METAR KBOS 130354Z 35006KT 10SM BKN048 OVC095 17/12 A2989 RMK AO2 SLP121 T01720117

TAF KBOS 122333Z 1300/1406 31007KT P6SM FEW030 BKN200 FM130300 35007KT P6SM BKN035 FM130500 05010KT 6SM BR OVC020 FM130600 06012G18KT 6SM BR VCSH OVC008 PROB30 1308/1311 4SM -SHRA BR OVC006 FM131100 07012KT 5SM BR VCSH OVC008 FM131700 12009KT 5SM BR VCSH FEW004 OVC008 PROB30 1319/1401 4SM -SHRA OVC006

flight Live Traffic

flight_takeoff 174 Departures
flight_land 167 Arrivals

Arrival

SEA KSEA VFR

Seattle–Tacoma International Airport

Seattle, US

Local time
21:42 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
VRB / 3 kt
Visibility
10 SM
Ceiling
FEW 23,000 ft
Temp / Dew
13°C / 3°C
Altimeter
30.08 inHg

Obs: 2026-10-13T03:53:00.000Z

Raw METAR / TAF 
METAR KSEA 130353Z VRB03KT 10SM FEW230 13/03 A3008 RMK AO2 SLP194 T01330028

TAF KSEA 130259Z 1303/1406 VRB03KT P6SM SCT250 FM130900 16004KT P6SM OVC100 FM131800 20005KT P6SM OVC100 FM132300 23005KT P6SM OVC050 FM140400 19004KT P6SM SCT025 OVC040

flight Live Traffic

flight_takeoff 316 Departures
flight_land 297 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A1ECD6 BOS → SEA Jul 26, 18:10 UTCJul 26, 18:25 UTC15m - -
2026-07-25 A1C1A0 BOS → SEA Jul 25, 22:15 UTCJul 25, 23:00 UTC45m - -
2026-07-25 A1C1A0 BOS → SEA Jul 25, 18:05 UTCJul 25, 18:20 UTC15m - -
2026-07-24 A1B422 BOS → SEA Jul 24, 22:15 UTCJul 24, 23:00 UTC45m - -
2026-07-24 A1B422 BOS → SEA Jul 24, 18:00 UTCJul 24, 18:10 UTC10m - -
2026-07-23 A1C557 BOS → SEA Jul 23, 22:10 UTCJul 23, 23:05 UTC55m - -
2026-07-23 A1C557 BOS → SEA Jul 23, 18:05 UTCJul 23, 18:20 UTC15m - -
2026-07-19 A1D07C BOS → SEA Jul 19, 22:15 UTCJul 19, 23:05 UTC50m - -
2026-07-18 A1D7EA BOS → SEA Jul 18, 22:15 UTCJul 18, 23:05 UTC50m - -
2026-07-18 A1D7EA BOS → SEA Jul 18, 18:00 UTCJul 18, 18:10 UTC10m - -
2026-07-17 A1A546 BOS → SEA Jul 17, 22:49 UTCJul 17, 23:39 UTC50m - -
2026-07-17 A1A546 BOS → SEA Jul 17, 18:34 UTCJul 17, 18:50 UTC15m - -
2026-07-16 A1D07C - Jul 16, 22:15 UTCJul 16, 22:59 UTC45m - -
2026-07-16 A1D07C - Jul 16, 18:00 UTCJul 16, 18:15 UTC15m - -
2026-07-12 A1C90E - Jul 12, 22:10 UTCJul 12, 23:00 UTC50m - -
2026-07-12 A1C90E - Jul 12, 17:55 UTCJul 12, 18:10 UTC15m - -
2026-07-11 A1FF69 - Jul 11, 22:25 UTCJul 11, 23:10 UTC45m - -
2026-07-11 A1FF69 - Jul 11, 17:55 UTCJul 11, 18:05 UTC10m - -
2026-07-10 A1D7EA - Jul 10, 22:10 UTCJul 10, 22:55 UTC45m - -
2026-07-09 A1C90E - Jul 9, 22:30 UTCJul 9, 23:25 UTC55m - -
2026-07-09 A1C90E - Jul 9, 18:15 UTCJul 9, 18:25 UTC10m - -
2026-07-05 A1C90E - Jul 5, 22:25 UTCJul 5, 23:20 UTC55m - -
2026-07-05 A1C90E - Jul 5, 18:10 UTCJul 5, 18:30 UTC20m - -
2026-07-04 A1F7FB - Jul 4, 22:05 UTCJul 4, 22:55 UTC50m - -
2026-07-04 A1F7FB - Jul 4, 17:45 UTCJul 4, 17:55 UTC10m - -
2026-07-03 A1B06B - Jul 3, 22:15 UTCJul 3, 23:10 UTC55m - -
2026-07-03 A1B06B - Jul 3, 17:55 UTCJul 3, 18:05 UTC10m - -
2026-07-02 A1C557 - Jul 2, 22:30 UTCJul 2, 23:30 UTC1h 0m - -
2026-07-02 A1C557 - Jul 2, 18:05 UTCJul 2, 18:25 UTC20m - -
2026-06-28 A1D7EA - Jun 28, 22:29 UTCJun 28, 23:20 UTC50m - -

Performance history

Flights tracked
56 showing last 30
Avg arrival delay
-
On-time arrival
-
Aircraft used
11

Monthly activity 3 months

Month Flights tracked
July 2026 29
June 2026 24
April 2026 3

ASA840 frequently asked

Where does flight ASA840 fly?
ASA840 (Alaska Airlines) flies from BOS to SEA. View the full route page.
How long is flight ASA840?
Based on observed flights, ASA840 takes on average 33m from takeoff to landing.
How often does ASA840 fly?
ASA840 has been observed flying several times a week in our tracking data. We've recorded 56 flights under this callsign.
What aircraft operates flight ASA840?
ASA840 has been operated by 11 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track ASA840 live?
Yes. When ASA840 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.