AS403

For travellers

Departure · Seattle (SEA)

Gate N3

Scheduled 20:48

Board status: Departed

Airborne since 21:01 (ADS-B)

Board data from sea, updated 142 min ago; times local to each airport.

Flight

Status

In progress

Departure

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

Scheduled departure

2026-10-04 03:48 UTC

Departed

2026-10-04 04:01 UTC

Arrival

Norman Y. Mineta San Jose International Airport (SJC) — San Jose, United States (scheduled)

Progress

100%

Distance flown

1252 km

Straight-line distance

1122 km

Aircraft

Registration

N644AS

Type

Boeing 737-700

Seats

124 total (94 Economy, 18 Premium, 12 First)

Altitude & speed

Max altitude

39,025 ft

Max ground speed

455 kt

Tracked

1h 52m · 1,252 km

Note

still in progress - the track so far

Altitude (ft, max 39,025)

Ground speed (kt, max 455)

Altitude (ft, max 39,025)

Ground speed (kt, max 455)

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
2026-10-04 04:01 UTC	ASA403	SEA → SJC Seattle → San Jose	N644AS	Boeing 737-700	In progress	~1122 km est.
2026-10-03 01:38 UTC	ASA403	JNU → ANC Juneau → Anchorage	N614AS	Boeing 737-700	Completed (landing confirmed by airport data)	1022 km
2026-10-02 01:43 UTC	ASA403	JNU → ANC Juneau → Anchorage	N618AS	Boeing 737-700	Completed	1007 km
2026-10-01 01:41 UTC	ASA403	JNU → ANC Juneau → Anchorage	N613AS	Boeing 737-700	Completed	1075 km