UA439

For travellers

Departure · Austin (AUS)

Gate 25

Scheduled 18:06 · Departed 19:18 · +72 min

Board status: Departed 7:18P

Airborne since 19:19 (ADS-B)

Arrival · Denver (DEN)

Gate A40 · Baggage belt 14

Scheduled 19:38 · Landed 20:19 · +41 min

Board status: Arrived

Landed 20:19 (airport data)

Board data from aus, den, updated 6 min ago; times local to each airport.

Flight

Status

Completed (landing confirmed by airport data)

Arrival confirmed via

Airport data (confirmed)

Departure

Austin Bergstrom International Airport (AUS) — Austin, United States

Scheduled departure

2026-10-02 23:06 UTC

Departed

2026-10-03 00:19 UTC

Arrival

Denver International Airport (DEN) — Denver, United States

Scheduled arrival

2026-10-03 01:38 UTC

Estimated arrival

2026-10-03 02:23 UTC

Distance flown

1309 km

Straight-line distance

1249 km

Aircraft

Registration

N37445

Type

Boeing 737 MAX 9

Seats

179 total (117 Economy, 42 Economy Plus, 20 First) (typical for type, not this tail)

CO2 (EMEP est., total)

28.1 t (200 kg/pax Business, 152 kg/pax Economy)

Altitude & speed

Max altitude

36,025 ft

Max ground speed

488 kt

Tracked

2h 0m · 1,307 km

Altitude (ft, max 36,025)

Ground speed (kt, max 488)

Altitude (ft, max 36,025)

Ground speed (kt, max 488)

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

United Airlines (UAL)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-03 00:19 UTC	UAL439	AUS → DEN Austin → Denver	N37445	Boeing 737 MAX 9	Completed (landing confirmed by airport data)	1309 km
2026-10-02 02:19 UTC	UAL439	AUS → DEN Austin → Denver	N78438	Boeing 737-900	Completed	1331 km
2026-09-30 23:01 UTC	UAL439	AUS → DEN Austin → Denver	N35260	Boeing 737-800	Completed	1310 km
2026-09-29 23:03 UTC	UAL439	AUS → DEN Austin → Denver	N73278	Boeing 737-800	Completed	1318 km
2026-09-28 23:06 UTC	UAL439	AUS → DEN Austin → Denver	N36476	Boeing 737-900	Completed	1378 km
2026-09-22 23:38 UTC	UAL439	LAX → PHX Los Angeles → Phoenix	N17414	Boeing 737 MAX 9	Completed	650 km
2026-09-19 23:29 UTC	UAL439	LAX → PHX Los Angeles → Phoenix	N37413	Boeing 737-900	Completed	713 km