YAFT.LIVE

ASA357

SEA → BOS · Boeing 737 MAX 9 · Alaska Airlines

View on live map →

For travellers

Departure · Seattle (SEA)

Gate D4
Scheduled 07:40 · Estimated 07:45 · +5 min
Board status: On-Time
Airborne since 08:04 (ADS-B)

Arrival · Boston (BOS)

Terminal B · Gate B6 · Baggage belt 3
Scheduled 16:24 · Estimated 15:43 · early
Board status: Now 3:43 PM
In the air, ~3h 26m to go (16% of the route flown)

Board data from bos, sea, updated 60 min ago; times local to each airport.

Flight

Status
In progress
Departure
Seattle Tacoma International Airport (SEA) — Seattle, United States
Scheduled departure
2026-10-02 14:40 UTC
Departed
2026-10-02 15:04 UTC
Arrival
General Edward Lawrence Logan International Airport (BOS) — Boston, United States (scheduled)
Scheduled arrival
2026-10-02 20:24 UTC
Estimated arrival
2026-10-02 19:43 UTC
Progress
16% · ~3h 26m remaining
Also flies as
AS357
Distance flown
658 km
Straight-line distance
4006 km

Aircraft

Registration
N974AK
Type
Boeing 737 MAX 9
Seats
178 total (16 Business, 24 Premium Economy, 138 Economy)
CO2 (EMEP est., total)
81.2 t (408 kg/pax Economy, 498 kg/pax Premium Economy, 812 kg/pax Business)

Altitude & speed

Max altitude
33,000 ft
Max ground speed
534 kt
Tracked
46m · 658 km
Note
still in progress - the track so far
Altitude (ft, max 33,000)
017,82035,6400m30m
Ground speed (kt, max 534)
02885770m30m
Altitude (ft, max 33,000)
017,82035,6400m
Ground speed (kt, max 534)
02885770m

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airlines

Alaska Airlines (ASA)
Delta Air Lines (DAL)

Latest flights

DepartedFlightRouteRegAircraftStatusDistance
2026-10-02 15:04 UTC ASA357 SEA → BOS
Seattle → Boston
 N974AK Boeing 737 MAX 9 In progress ~4006 km est.
2026-10-01 16:25 UTC ASA357 SEA → BOS
Seattle → Boston
 N813AK Boeing 737 MAX 8 Completed 4191 km
2026-09-30 15:06 UTC ASA357 SEA → BOS
Seattle → Boston
 N586AS Boeing 737-800 Completed 4162 km
2026-09-29 17:01 UTC ASA357 SEA → BOS
Seattle → Boston
 N845AK Boeing 737 MAX 8 Completed 4146 km
2026-09-28 19:43 UTC ASA357 SEA → BOS
Seattle → Boston
 N839AK Boeing 737 MAX 8 Completed 4233 km
2026-09-27 19:02 UTC ASA357 SEA → BOS
Seattle → Boston
 N846AK Boeing 737 MAX 8 Completed 4180 km
2026-09-26 14:42 UTC ASA357 SEA → BOS
Seattle → Boston
 N982AK Boeing 737 MAX 9 Completed 4147 km
2026-09-25 14:52 UTC ASA357 SEA → BOS
Seattle → Boston
 N845AK Boeing 737 MAX 8 Completed 4267 km
2026-09-24 16:32 UTC ASA357 SEA → BOS
Seattle → Boston
 N525AS Boeing 737-800 Completed 4194 km
2026-09-23 15:54 UTC ASA357 SEA → BOS
Seattle → Boston
 N586AS Boeing 737-800 Completed 4291 km
2026-09-22 15:20 UTC ASA357 SEA → BOS
Seattle → Boston
 N569AS Boeing 737-800 Completed 4175 km
2026-09-21 15:55 UTC ASA357 SEA → BOS
Seattle → Boston
 N486AS Boeing 737-900 Completed 4151 km
2026-09-20 16:36 UTC ASA357 SEA → BOS
Seattle → Boston
 N549AS Boeing 737-800 Completed 4198 km
2026-09-19 14:53 UTC ASA357 SEA → BOS
Seattle → Boston
 N815AK Boeing 737 MAX 8 Completed 4345 km
2026-09-18 14:46 UTC ASA357 SEA → BOS
Seattle → Boston
 N846AK Boeing 737 MAX 8 Completed 4421 km
2026-09-17 16:46 UTC ASA357 SEA → BOS
Seattle → Boston
 N512AS Boeing 737-800 Completed 4362 km
2026-09-16 16:22 UTC ASA357 SEA → BOS
Seattle → Boston
 N846AK Boeing 737 MAX 8 Completed 4488 km
2026-09-15 15:00 UTC ASA357 SEA → BOS
Seattle → Boston
 N513AS Boeing 737-800 Completed 4338 km
2026-09-14 16:13 UTC ASA357 SEA → BOS
Seattle → Boston
 N523AS Boeing 737-800 Completed 4615 km
2026-09-13 17:36 UTC ASA357 SEA → BOS
Seattle → Boston
 N433AS Boeing 737-900 Completed 4408 km
2026-09-12 16:53 UTC ASA357 SEA → BOS
Seattle → Boston
 N512AS Boeing 737-800 Completed 4337 km
2026-09-11 16:07 UTC ASA357 SEA → BOS
Seattle → Boston
 N845AK Boeing 737 MAX 8 Completed 4397 km
2026-09-10 16:55 UTC ASA357 SEA → BOS
Seattle → Boston
 N589AS Boeing 737-800 Completed 4497 km
2026-09-09 16:44 UTC ASA357 SEA → BOS
Seattle → Boston
 N838AK Boeing 737 MAX 8 Completed 4411 km
2026-09-07 15:04 UTC ASA357 SEA → BOS
Seattle → Boston
 N979AK Boeing 737 MAX 9 Completed 4445 km
2026-09-06 16:32 UTC ASA357 SEA → BOS
Seattle → Boston
 N975AK Boeing 737 MAX 9 Completed 4347 km
2026-09-05 15:10 UTC ASA357 SEA → BOS
Seattle → Boston
 N462AS Boeing 737-900 Completed 4295 km
2026-09-04 15:18 UTC ASA357 SEA → BOS
Seattle → Boston
 N710AL Boeing 737 MAX 9 Completed 4219 km
2026-09-03 22:29 UTC ASA357 BED → BED
Bedford → Bedford
 N265AK Boeing 737-900 Completed ~5 km est. (1 km recorded)
2026-09-03 17:50 UTC ASA357 SEA → BOS
Seattle → Boston
 N265AK Boeing 737-900 Completed 4303 km
2026-09-02 15:17 UTC ASA357 SEA → BOS
Seattle → Boston
 N423AS Boeing 737-900 Completed 4480 km
2026-09-01 17:51 UTC ASA357 SEA → BOS
Seattle → Boston
 N946AK Boeing 737 MAX 9 Completed 4271 km
2026-08-31 15:25 UTC ASA357 SEA → BOS
Seattle → Boston
 N967AK Boeing 737 MAX 9 Completed 4523 km
2026-08-30 15:28 UTC ASA357 SEA → BOS
Seattle → Boston
 N938AK Boeing 737 MAX 9 Completed 4341 km
2026-08-29 15:13 UTC ASA357 SEA → BOS
Seattle → Boston
 N707AL Boeing 737 MAX 9 Completed 4329 km
2026-08-28 15:22 UTC ASA357 SEA → BOS
Seattle → Boston
 N738AL Boeing 737 MAX 9 Completed 4358 km
2026-08-27 15:00 UTC ASA357 SEA → BOS
Seattle → Boston
 N224AK Boeing 737-900 Completed 4411 km
2026-08-26 15:25 UTC ASA357 SEA → BOS
Seattle → Boston
 N972AK Boeing 737 MAX 9 Completed 4436 km
2026-08-25 15:33 UTC ASA357 SEA → BOS
Seattle → Boston
 N948AK Boeing 737 MAX 9 Completed 4455 km
2026-08-24 15:41 UTC ASA357 SEA → BOS
Seattle → Boston
 N985AK Boeing 737 MAX 9 Completed 4437 km
2026-08-23 14:59 UTC ASA357 SEA → BOS
Seattle → Boston
 N725AL Boeing 737 MAX 9 Completed 4408 km
2026-08-22 15:19 UTC ASA357 SEA → BOS
Seattle → Boston
 N947AK Boeing 737 MAX 9 Completed 5909 km
2026-08-21 15:07 UTC ASA357 SEA → BOS
Seattle → Boston
 N972AK Boeing 737 MAX 9 Completed 5559 km
2026-08-20 15:18 UTC ASA357 SEA → BOS
Seattle → Boston
 N734AL Boeing 737 MAX 9 Completed 9441 km
2026-08-19 15:11 UTC ASA357 SEA → BOS
Seattle → Boston
 N270AK Boeing 737-900 Completed 10123 km
2026-08-18 16:43 UTC ASA357 SEA → ANC
Seattle → Anchorage
 N644AS Boeing 737-700 Completed 8134 km
2026-08-17 16:26 UTC ASA357 SEA → ANC
Seattle → Anchorage
 N612AS Boeing 737-700 Completed 3553 km
2026-08-16 16:41 UTC ASA357 SEA → ANC
Seattle → Anchorage
 N622AS Boeing 737-700 Completed 3025 km
2026-08-12 16:39 UTC ASA357 SEA → ANC
Seattle → Anchorage
 N612AS Boeing 737-700 Completed 3456 km
2026-08-11 19:29 UTC ASA357 SEA → ANC
Seattle → Anchorage
 N559AS Boeing 737-800 Completed 3544 km

← Back to the live map