SWA4321

For travellers

Departure · Chicago (MDW)

Gate B1

Scheduled 01 Oct 18:25 · Departed 01 Oct 20:10 · +105 min

Board status: Active

Airborne since 01 Oct 20:28 (ADS-B)

Arrival · Denver (DEN)

Gate C45 · Baggage belt 4

Scheduled 01 Oct 20:05 · Landed 01 Oct 21:58 · +114 min

Board status: Arrived

Landed 01 Oct 21:54 (ADS-B)

Board data from den, mdw, updated 80 min ago; times local to each airport.

Flight

Status

Completed

Arrival confirmed via

ADS-B (callsign change)

Departure

Chicago Midway International Airport (MDW) — Chicago, United States

Scheduled departure

2026-10-01 23:25 UTC

Departed

2026-10-02 01:28 UTC

Arrival

Denver International Airport (DEN) — Denver, United States

Scheduled arrival

2026-10-02 02:05 UTC

Estimated arrival

2026-10-02 03:59 UTC

Also flies as

WN4321

Distance flown

1666 km

Straight-line distance

1437 km

Approach distance

57 km

Aircraft

Registration

N8757L

Type

Boeing 737 MAX 8

Seats

175 total (175 Economy)

CO2 (EMEP est., total)

32.5 t (186 kg/pax Economy)

Altitude & speed

Max altitude

38,025 ft

Max ground speed

461 kt

Tracked

2h 26m · 1,662 km

Altitude (ft, max 38,025)

Ground speed (kt, max 461)

Altitude (ft, max 38,025)

Ground speed (kt, max 461)

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 01:28 UTC	SWA4321	MDW → DEN Chicago → Denver	N8757L	Boeing 737 MAX 8	Completed	1666 km
2026-09-28 17:25 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N289CT	Boeing 737-700	Completed	348 km
2026-09-27 15:09 UTC	SWA4321	GSP → BNA Greenville → Nashville	N228WN	Boeing 737-700	Completed	470 km
2026-09-27 13:02 UTC	SWA4321	BWI → GSP Baltimore → Greenville	N228WN	Boeing 737-700	Completed	749 km
2026-09-21 17:47 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N7732A	Boeing 737-700	Completed	324 km
2026-09-18 17:41 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N287WN	Boeing 737-700	Completed	378 km
2026-09-17 17:30 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N280WN	Boeing 737-700	Completed	395 km
2026-09-14 17:41 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N7721E	Boeing 737-700	Completed	373 km
2026-09-11 17:16 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N8672F	Boeing 737-800	Completed	409 km
2026-09-10 17:10 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N257WN	Boeing 737-700	Completed	346 km
2026-09-07 17:29 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N478WN	Boeing 737-700	Completed	348 km
2026-09-06 13:21 UTC	SWA4321	BWI → GSP Baltimore → Greenville	N940WN	Boeing 737-700	Completed	800 km
2026-09-04 17:46 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N7852A	Boeing 737-700	Completed	344 km
2026-09-03 17:31 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N563WN	Boeing 737-700	Completed	357 km
2026-08-31 17:23 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N200WN	Boeing 737-700	Completed	363 km
2026-08-30 15:04 UTC	SWA4321	GSP → BNA Greenville → Nashville	N268WN	Boeing 737-700	Completed	506 km
2026-08-30 12:59 UTC	SWA4321	BWI → GSP Baltimore → Greenville	N268WN	Boeing 737-700	Completed (landing presumed)	813 km
2026-08-28 17:15 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N240WN	Boeing 737-700	Completed	376 km
2026-08-27 17:25 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N257WN	Boeing 737-700	Completed	406 km
2026-08-24 17:35 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N950WN	Boeing 737-700	Completed	372 km
2026-08-23 14:48 UTC	SWA4321	GSP → BNA Greenville → Nashville	N947WN	Boeing 737-700	Completed	665 km
2026-08-23 12:46 UTC	SWA4321	BWI → GSP Baltimore → Greenville	N947WN	Boeing 737-700	Completed	1055 km
2026-08-21 17:26 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N967WN	Boeing 737-700	Completed	483 km
2026-08-20 17:28 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N225WN	Boeing 737-700	Completed	~1344 km est. (958 km recorded)
2026-08-17 17:17 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N449WN	Boeing 737-700	Completed	522 km
2026-08-16 14:50 UTC	SWA4321	GSP → BNA Greenville → Nashville	N7874B	Boeing 737-700	Completed	697 km
2026-08-16 12:35 UTC	SWA4321	BWI → GSP Baltimore → Greenville	N7874B	Boeing 737-700	Completed	1138 km
2026-08-14 17:56 UTC	SWA4321	ORF → BWI Norfolk → Baltimore	N254WN	Boeing 737-700	Completed	~1331 km est. (472 km recorded)