DE5245

JFK → SEA · Boeing 737-800 · Alaska Airlines

For travellers

Departure · New York (JFK)

Terminal 8 · Gate 33

Scheduled 07:25 · Departed 07:20 · early

Board status: Departed

Airborne since 07:45 (ADS-B)

Arrival · Seattle (SEA)

Gate C10

Scheduled 10:34 · Estimated 10:55 · +21 min

Board status: Landed

Landed 09:01 (estimated)

Board data from jfk, sea, updated 118 min ago; times local to each airport.

Flight

Status

Incomplete (signal lost)

Departure

John F Kennedy International Airport (JFK) — New York, United States

Scheduled departure

2026-10-02 11:25 UTC

Departed

2026-10-02 11:45 UTC

Arrival

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

Scheduled arrival

2026-10-02 17:34 UTC

Estimated arrival

2026-10-02 17:55 UTC

Also flies as

AS21

Codeshares

DE5245, QR3314

Distance flown

2961 km

Straight-line distance

3887 km

Aircraft

Registration

N519AS

Type

Boeing 737-800

Seats

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

Altitude & speed

Max altitude

36,000 ft

Max ground speed

436 kt

Tracked

4h 15m · 2,949 km

Altitude (ft, max 36,000)

Ground speed (kt, max 436)

Altitude (ft, max 36,000)

Ground speed (kt, max 436)

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 11:45 UTC	ASA21	JFK → SEA New York → Seattle	N519AS	Boeing 737-800	Incomplete (signal lost)	~4030 km est. (2961 km recorded)
2026-10-01 11:35 UTC	ASA21	JFK → SEA New York → Seattle	N419AS	Boeing 737-900	Incomplete (signal lost)	~4037 km est. (2516 km recorded)
2026-09-30 11:43 UTC	ASA21	JFK → SEA New York → Seattle	N941AK	Boeing 737 MAX 9	Completed	4155 km

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