SWA3721

Flight

Status

Completed

Arrival confirmed via

ADS-B (callsign change)

Departure

Tucson International Airport / Morris Air National Guard Base (TUS) — Tucson, United States

Est. departure time

2026-09-06 14:06 UTC (approx.)

Arrival

Denver International Airport (DEN) — Denver, United States

Distance flown

1128 km

Straight-line distance

1029 km

Approach distance

35 km

Registration

Type

Boeing 737-800

Seats

175 total (175 Economy)

Max altitude

39,000 ft

Max ground speed

513 kt

Tracked

1h 26m · 1,083 km

Altitude (ft, max 39,000)

Ground speed (kt, max 513)

Altitude (ft, max 39,000)

Ground speed (kt, max 513)

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.

Southwest Airlines (SWA)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-03 03:03 UTC	SWA3721	SAT → LAS San Antonio → Las Vegas	N9029H	Boeing 737 MAX 8	In progress	~1718 km est.
2026-10-02 02:17 UTC	SWA3721	SAT → LAS San Antonio → Las Vegas	N8872Q	Boeing 737 MAX 8	Completed	1761 km
2026-09-27 14:13 UTC	SWA3721	TUS → DEN Tucson → Denver	N8853Q	Boeing 737 MAX 8	Completed	1125 km
2026-09-20 14:26 UTC	SWA3721	TUS → DEN Tucson → Denver	N8581Z	Boeing 737-800	Completed	1173 km
2026-09-13 14:13 UTC	SWA3721	TUS → DEN Tucson → Denver	N8646B	Boeing 737-800	Completed	1162 km
2026-09-06 14:19 UTC	SWA3721	TUS → DEN Tucson → Denver	N8632A	Boeing 737-800	Completed	1128 km
2026-08-23 14:24 UTC	SWA3721	TUS → DEN Tucson → Denver	N8508W	Boeing 737-800	Completed	1511 km
2026-08-16 14:19 UTC	SWA3721	TUS → DEN Tucson → Denver	N8864H	Boeing 737 MAX 8	Completed	1577 km