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AS215

BOS → SEA · Boeing 737-900 · Alaska Airlines

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Departure · Boston (BOS)

Terminal B · Gate B4
Scheduled 09:03 · Departed 08:58 · early
Board status: Departed
Airborne since 09:03 (ADS-B)

Arrival · Seattle (SEA)

Gate N11
Scheduled 12:20 · Estimated 12:09 · early
Board status: Landed
In the air (100% of the route flown)

Board data from bos, sea, updated 38 min ago; times local to each airport.

Flight

Status
In progress
Departure
General Edward Lawrence Logan International Airport (BOS) — Boston, United States
Scheduled departure
2026-10-03 13:03 UTC
Departed
2026-10-03 13:03 UTC
Arrival
Seattle Tacoma International Airport (SEA) — Seattle, United States (scheduled)
Scheduled arrival
2026-10-03 19:20 UTC
Estimated arrival
2026-10-03 19:09 UTC
Progress
100%
Distance flown
4351 km
Straight-line distance
4006 km

Aircraft

Registration
N471AS
Type
Boeing 737-900
Seats
178 total (138 Economy, 24 Premium, 16 First)
CO2 (EMEP est., total)
97.4 t (510 kg/pax Economy, 576 kg/pax Premium Economy, 833 kg/pax Business)

Altitude & speed

Max altitude
34,025 ft
Max ground speed
425 kt
Tracked
6h 51m · 4,351 km
Note
still in progress - the track so far
Altitude (ft, max 34,025)
018,37436,7470m1h 0m2h 0m3h 0m4h 0m5h 0m6h 0m
Ground speed (kt, max 425)
02304590m1h 0m2h 0m3h 0m4h 0m5h 0m6h 0m
Altitude (ft, max 34,025)
018,37436,7470m2h 0m4h 0m6h 0m
Ground speed (kt, max 425)
02304590m2h 0m4h 0m6h 0m

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

Airline

Alaska Airlines (ASA)

Latest flights

DepartedFlightRouteRegAircraftStatusDistance
2026-10-03 13:03 UTC ASA215 BOS → SEA
Boston → Seattle
 N471AS Boeing 737-900 In progress ~4006 km est.
2026-10-02 14:15 UTC ASA215 BOS → SEA
Boston → Seattle
 N251AK Boeing 737-900 Incomplete (signal lost) ~4145 km est. (2824 km recorded)
2026-10-01 14:25 UTC ASA215 BOS → SEA
Boston → Seattle
 N266AK Boeing 737-900 Completed 4222 km
2026-09-30 14:38 UTC ASA215 BOS → SEA
Boston → Seattle
 N913AK Boeing 737 MAX 9 Completed 4193 km
2026-09-29 15:30 UTC ASA215 BOS → SEA
Boston → Seattle
 N275AK Boeing 737-900 Completed 4118 km

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