UA4639

BOI → SFO · EMBRAER EMB175 · Skywest Airlines

For travellers

Departure · Boise (BOI)

Gate B10

Scheduled 02 Oct 08:15 · Estimated 02 Oct 10:20 · +125 min

Board status: Delayed

Airborne since 02 Oct 10:51 (ADS-B)

Arrival · San Francisco (SFO)

Terminal T3 · Gate E3 · Baggage belt CL-F4

Scheduled 02 Oct 09:18 · Landed 02 Oct 11:36 · +138 min

Board status: Arrived

Landed 02 Oct 11:36 (ADS-B)

Board data from boi, sfo, updated 1021 min ago; times local to each airport.

Flight

Status

Completed

Arrival confirmed via

ADS-B (callsign change)

Departure

Boise Air Terminal/Gowen Field (BOI) — Boise, United States

Scheduled departure

2026-10-02 14:15 UTC

Departed

2026-10-02 16:51 UTC

Arrival

San Francisco International Airport (SFO) — San Francisco, United States

Scheduled arrival

2026-10-02 16:18 UTC

Estimated arrival

2026-10-02 18:27 UTC

Codeshares

AC4229, NH7335, NZ9392

Distance flown

1081 km

Straight-line distance

840 km

Approach distance

76 km

Aircraft

Registration

N213SY

Type

EMBRAER EMB175

Seats

76 total (48 Economy, 16 Economy Plus, 12 United First)

CO2 (EMEP est., total)

13.1 t (165 kg/pax Economy, 207 kg/pax Business)

Altitude & speed

Max altitude

36,000 ft

Max ground speed

428 kt

Tracked

1h 44m · 1,076 km

Altitude (ft, max 36,000)

Ground speed (kt, max 428)

Altitude (ft, max 36,000)

Ground speed (kt, max 428)

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

Skywest Airlines (SKW)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-02 16:51 UTC	SKW4639	BOI → SFO Boise → San Francisco	N213SY	EMBRAER EMB175	Completed	1081 km
2026-10-01 16:11 UTC	SKW4639	BOI → SFO Boise → San Francisco	N160SY	EMBRAER EMB175	Completed	1014 km
2026-09-30 14:21 UTC	SKW4639	BOI → SFO Boise → San Francisco	N121SY	EMBRAER EMB175	Completed	999 km

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