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UAL439

AUS → DEN · Boeing 737 MAX 9 · United Airlines

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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 · Estimated 20:23 · +45 min
Board status: Delayed
In the air, ~16m to go (82% of the route flown)

Board data from aus, den, updated 16 min ago; times local to each airport.

Flight

Status
In progress
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)
Scheduled arrival
2026-10-03 01:38 UTC
Estimated arrival
2026-10-03 02:23 UTC
Progress
82% · ~16m remaining
Also flies as
UA439
Distance flown
1041 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)

Altitude & speed

Max altitude
36,025 ft
Max ground speed
488 kt
Tracked
1h 28m · 1,041 km
Note
still in progress - the track so far
Altitude (ft, max 36,025)
019,45438,9070m30m1h 0m
Ground speed (kt, max 488)
02645270m30m1h 0m
Altitude (ft, max 36,025)
019,45438,9070m1h 0m
Ground speed (kt, max 488)
02645270m1h 0m

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

DepartedFlightRouteRegAircraftStatusDistance
2026-10-03 00:19 UTC UAL439 AUS → DEN
Austin → Denver
 N37445 Boeing 737 MAX 9 In progress ~1249 km est.
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
2026-09-27 22:57 UTC UAL439 AUS → DEN
Austin → Denver
 N17233 Boeing 737-800 Completed 1590 km
2026-09-26 17:04 UTC UAL439 IAD → RDU
Washington, DC → Raleigh/Durham
 N4888U Airbus A319 Completed 427 km
2026-09-26 01:13 UTC UAL439 AUS → DEN
Austin → Denver
 N87512 Boeing 737-800 Completed 1509 km
2026-09-24 23:47 UTC UAL439 AUS → DEN
Austin → Denver
 N78501 Boeing 737-800 Completed 1422 km
2026-09-23 23:15 UTC UAL439 AUS → DEN
Austin → Denver
 B737-M9 Boeing 737 MAX 9 Completed 1377 km
2026-09-22 23:38 UTC UAL439 LAX → PHX
Los Angeles → Phoenix
 N17414 Boeing 737 MAX 9 Completed 650 km
2026-09-21 22:53 UTC UAL439 AUS → DEN
Austin → Denver
 N37447 Boeing 737 MAX 9 Completed 1392 km
2026-09-20 23:08 UTC UAL439 AUS → DEN
Austin → Denver
 N37447 Boeing 737 MAX 9 Completed 1763 km
2026-09-19 23:29 UTC UAL439 LAX → PHX
Los Angeles → Phoenix
 N37413 Boeing 737-900 Completed 713 km
2026-09-18 23:29 UTC UAL439 AUS → DEN
Austin → Denver
 N17468 Boeing 737 MAX 9 Completed 1795 km
2026-09-17 22:58 UTC UAL439 AUS → DEN
Austin → Denver
 N77571 Boeing 737 MAX 9 Completed 1731 km
2026-09-16 22:58 UTC UAL439 AUS → DEN
Austin → Denver
 N17459 Boeing 737 MAX 9 Completed 1822 km
2026-09-15 23:43 UTC UAL439 LAX → PHX
Los Angeles → Phoenix
 N77582 Boeing 737 MAX 9 Completed 732 km
2026-09-13 22:56 UTC UAL439 AUS → DEN
Austin → Denver
 N17461 Boeing 737 MAX 9 Completed 1444 km
2026-09-12 23:33 UTC UAL439 LAX → PHX
Los Angeles → Phoenix
 N66848 Boeing 737-900 Completed 979 km
2026-09-07 23:24 UTC UAL439 AUS → DEN
Austin → Denver
 N446UA Airbus A320 233 Completed 1696 km
2026-09-04 23:12 UTC UAL439 AUS → DEN
Austin → Denver
 N437UA Airbus A320 233 Completed 1403 km
2026-09-03 23:13 UTC UAL439 AUS → DEN
Austin → Denver
 N437UA Airbus A320 233 Completed 1423 km
2026-09-02 23:07 UTC UAL439 AUS → DEN
Austin → Denver
 N495UA Airbus A320 233 Completed 1422 km
2026-08-31 22:59 UTC UAL439 AUS → DEN
Austin → Denver
 N438UA Airbus A320 233 Completed 1714 km
2026-08-30 23:10 UTC UAL439 AUS → DEN
Austin → Denver
 N4901U Airbus A320 233 Completed 1800 km
2026-08-28 23:42 UTC UAL439 AUS → DEN
Austin → Denver
 N441UA Airbus A320 233 Completed 1459 km
2026-08-27 23:04 UTC UAL439 AUS → DEN
Austin → Denver
 N494UA Airbus A320 233 Completed 1459 km
2026-08-27 00:44 UTC UAL439 AUS → DEN
Austin → Denver
 N481UA Airbus A320 233 Completed 1530 km
2026-08-24 22:52 UTC UAL439 AUS → DEN
Austin → Denver
 N436UA Airbus A320 233 Completed 1765 km
2026-08-23 23:20 UTC UAL439 AUS → DEN
Austin → Denver
 N445UA Airbus A320 233 Completed 1787 km
2026-08-21 23:01 UTC UAL439 AUS → DEN
Austin → Denver
 N475UA Airbus A320 233 Completed 2734 km
2026-08-20 23:17 UTC UAL439 DEN → DEN
Denver → Denver
 N443UA Airbus A320 233 Completed 3448 km
2026-08-19 22:54 UTC UAL439 AUS → DEN
Austin → Denver
 N480UA Airbus A320 233 Completed 2815 km
2026-08-17 23:10 UTC UAL439 AUS → DEN
Austin → Denver
 N458UA Airbus A320 233 Completed 1801 km
2026-08-16 23:48 UTC UAL439 SEA → LAX
Seattle → Los Angeles
 N87507 Boeing 737-800 Completed 2459 km
2026-08-15 01:27 UTC UAL439 AUS → DEN
Austin → Denver
 N481UA Airbus A320 233 Completed ~3836 km est. (2408 km recorded)
2026-08-13 00:39 UTC UAL439 AUS → DEN
Austin → Denver
 N434UA Airbus A320 233 Completed ~2358 km est. (1328 km recorded)

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