SWA4021

For travellers

Arrival · Salt Lake City (SLC)

Gate B35

Scheduled 01 Oct 10:00

Board status: On Time

Landed 01 Oct 10:05 (ADS-B)

Board data from slc, updated 2329 min ago; times local to each airport.

Flight

Status

Completed

Arrival confirmed via

ADS-B (callsign change)

Departure

Sacramento International Airport (SMF) — Sacramento, United States

Departed

2026-10-01 14:28 UTC

Arrival

Salt Lake City International Airport (SLC) — Salt Lake City, United States

Scheduled arrival

2026-10-01 16:00 UTC

Also flies as

WN4021

Distance flown

942 km

Straight-line distance

854 km

Approach distance

46 km

Aircraft

Registration

N7881A

Type

Boeing 737-700

Seats

143 total (143 Economy)

CO2 (EMEP est., total)

21.9 t (153 kg/pax Economy)

Altitude & speed

Max altitude

41,025 ft

Max ground speed

481 kt

Tracked

2h 8m · 938 km

Altitude (ft, max 41,025)

Ground speed (kt, max 481)

Altitude (ft, max 41,025)

Ground speed (kt, max 481)

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

Southwest Airlines (SWA)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-02 14:22 UTC	SWA4021	SMF → SLC Sacramento → Salt Lake City	N7828A	Boeing 737-700	Completed	937 km
2026-10-01 14:28 UTC	SWA4021	SMF → SLC Sacramento → Salt Lake City	N7881A	Boeing 737-700	Completed	942 km
2026-09-27 20:19 UTC	SWA4021	BHM → MDW Birmingham → Chicago	N442WN	Boeing 737-700	Completed	1023 km
2026-09-27 16:42 UTC	SWA4021	DEN → BHM Denver → Birmingham	N442WN	Boeing 737-700	Completed (landing presumed)	1782 km
2026-09-20 20:15 UTC	SWA4021	BHM → MDW Birmingham → Chicago	N469WN	Boeing 737-700	Completed	1006 km
2026-09-20 16:11 UTC	SWA4021	DEN → BHM Denver → Birmingham	N469WN	Boeing 737-700	Completed (landing presumed)	1816 km
2026-09-13 20:13 UTC	SWA4021	BHM → MDW Birmingham → Chicago	N481WN	Boeing 737-700	Completed (landing presumed)	1072 km
2026-09-13 16:22 UTC	SWA4021	DEN → BHM Denver → Birmingham	N481WN	Boeing 737-700	Completed (landing presumed)	1912 km
2026-09-06 16:59 UTC	SWA4021	DEN → BHM Denver → Birmingham	N8771D	Boeing 737 MAX 8	Completed (landing presumed)	1885 km
2026-08-30 17:02 UTC	SWA4021	DEN → MDW Denver → Chicago	N927WN	Boeing 737-700	Completed	2952 km
2026-08-23 20:07 UTC	SWA4021	BHM → MDW Birmingham → Chicago	N7823A	Boeing 737-700	Completed	1038 km
2026-08-23 16:41 UTC	SWA4021	DEN → BHM Denver → Birmingham	N7823A	Boeing 737-700	Completed (landing presumed)	1894 km
2026-08-16 16:46 UTC	SWA4021	DEN → MDW Denver → Chicago	N253WN	Boeing 737-700	Completed	3771 km