DL4031

For travellers

Departure · Seattle (SEA)

Gate A11

Scheduled 14:29 · Estimated 15:11 · +42 min

Board status: Now 3:11 PM

Airborne since 15:22 (ADS-B)

Board data from sea, updated 169 min ago; times local to each airport.

Flight

Status

In progress

Departure

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

Scheduled departure

2026-10-03 21:29 UTC

Departed

2026-10-03 22:22 UTC

Arrival

Ontario International Airport (ONT) — Ontario, United States (scheduled)

Progress

100% · ~1m remaining

Codeshares

KE3070, KL6270, WS8373

Distance flown

1671 km

Straight-line distance

1540 km

Aircraft

Registration

N288SY

Type

EMBRAER EMB175

Seats

70 total (12 Business, 58 Economy)

CO2 (EMEP est., total)

22.5 t (237 kg/pax Economy, 726 kg/pax Business)

Altitude & speed

Max altitude

35,025 ft

Max ground speed

458 kt

Tracked

2h 42m · 1,671 km

Note

still in progress - the track so far

Altitude (ft, max 35,025)

Ground speed (kt, max 458)

Altitude (ft, max 35,025)

Ground speed (kt, max 458)

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

Airlines

Asky Airlines (SKK)

Skywest Airlines (SKW)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-03 22:22 UTC	SKW4031	SEA → ONT Seattle → Ontario	N288SY	EMBRAER EMB175	In progress	~1540 km est.
2026-10-03 01:16 UTC	SKW4031	ONT → SEA Ontario → Seattle	N284SY	EMBRAER EMB175	Completed	1655 km
2026-10-02 21:34 UTC	SKW4031	SEA → ONT Seattle → Ontario	N284SY	EMBRAER EMB175	Completed	1628 km
2026-10-02 01:49 UTC	SKW4031	ONT → SEA Ontario → Seattle	N284SY	EMBRAER EMB175	Completed	1610 km
2026-10-01 21:38 UTC	SKW4031	SEA → ONT Seattle → Ontario	N284SY	EMBRAER EMB175	Completed	1665 km
2026-10-01 01:28 UTC	SKW4031	ONT → SEA Ontario → Seattle	N283SY	EMBRAER EMB175	Completed	1720 km
2026-09-30 21:37 UTC	SKW4031	SEA → ONT Seattle → Ontario	N283SY	EMBRAER EMB175	Completed	1669 km
2026-09-30 01:46 UTC	SKW4031	ONT → SEA Ontario → Seattle	N240SY	EMBRAER EMB175	Completed	1682 km
2026-09-29 21:56 UTC	SKW4031	SEA → ONT Seattle → Ontario	N240SY	EMBRAER EMB175	Completed	1623 km