AS1321

SEA → STS · Boeing 737-800 · Alaska Airlines

For travellers

Departure · Seattle (SEA)

Gate N8

Scheduled 10:37

Board status: Departed

Airborne since 10:50 (ADS-B)

Board data from sea, updated 450 min ago; times local to each airport.

Flight

Status

Completed (landing presumed)

Arrival confirmed via

Inferred (no confirmation)

Departure

Seattle Tacoma International Airport (SEA) — Seattle, United States

Scheduled departure

2026-10-02 17:37 UTC

Departed

2026-10-02 17:50 UTC

Arrival

Charles M. Schulz Sonoma County Airport (STS) — Santa Rosa, United States

Distance flown

1072 km

Straight-line distance

995 km

Approach distance

92 km

Aircraft

Registration

N551AS

Type

Boeing 737-800

Seats

159 total (117 Economy, 30 Premium, 12 First)

CO2 (EMEP est., total)

26.2 t (154 kg/pax Economy, 173 kg/pax Premium Economy, 252 kg/pax Business)

Altitude & speed

Max altitude

37,000 ft

Max ground speed

476 kt

Tracked

1h 50m · 1,065 km

Altitude (ft, max 37,000)

Ground speed (kt, max 476)

Altitude (ft, max 37,000)

Ground speed (kt, max 476)

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

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-02 17:50 UTC	ASA1321	SEA → STS Seattle → Santa Rosa	N551AS	Boeing 737-800	Completed (landing presumed)	1072 km
2026-10-01 17:39 UTC	ASA1321	SEA → STS Seattle → Santa Rosa	N531AS	Boeing 737-800	Completed (landing presumed)	1087 km
2026-09-30 19:08 UTC	ASA1321	SEA → STS Seattle → Santa Rosa	N579AS	Boeing 737-800	Completed (landing presumed)	1069 km

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