AS571

SEA → ONT · Boeing 737-900 · Alaska Airlines

For travellers

Departure · Seattle (SEA)

Gate C10B

Scheduled 10:31

Board status: On-Time

Airborne since 10:56 (ADS-B)

Board data from sea, updated 775 min ago; times local to each airport.

Flight

Status

Completed

Arrival confirmed via

ADS-B (callsign change)

Departure

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

Scheduled departure

2026-10-03 17:31 UTC

Departed

2026-10-03 17:56 UTC

Arrival

Ontario International Airport (ONT) — Ontario, United States

Distance flown

1690 km

Straight-line distance

1540 km

Approach distance

61 km

Aircraft

Registration

N413AS

Type

Boeing 737-900

Seats

178 total (138 Economy, 24 Premium, 16 First)

CO2 (EMEP est., total)

40.6 t (212 kg/pax Economy, 240 kg/pax Premium Economy, 346 kg/pax Business)

Altitude & speed

Max altitude

35,025 ft

Max ground speed

482 kt

Tracked

3h 7m · 1,681 km

Altitude (ft, max 35,025)

Ground speed (kt, max 482)

Altitude (ft, max 35,025)

Ground speed (kt, max 482)

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
2026-10-03 17:56 UTC	ASA571	SEA → ONT Seattle → Ontario	N413AS	Boeing 737-900	Completed	1690 km
2026-10-02 18:34 UTC	ASA571	SEA → ONT Seattle → Ontario	N977AK	Boeing 737 MAX 9	Completed	1629 km
2026-10-01 19:12 UTC	ASA571	SEA → ONT Seattle → Ontario	N990AK	Boeing 737 MAX 9	Completed	1679 km
2026-09-30 18:45 UTC	ASA571	SEA → ONT Seattle → Ontario	N238AK	Boeing 737-900	Completed	1678 km

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