Apparatus

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flight_takeoff Flight

UAL439

Live map

Live map filtered to UAL439. Shown when the flight is currently airborne.

Route airports View route page →

Departure

AUS KAUS LIFR

Austin Bergstrom International Airport

Austin, US

Local time
06:31 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
542 ft
Coordinates
30.1975, -97.6620

cloud Weather

Wind
0° / 0 kt
Visibility
6 SM
Ceiling
OVC 400 ft
Temp / Dew
25°C / 24°C
Altimeter
30.02 inHg
Wx
BR

Obs: 2026-07-14T10:53:00.000Z

Raw METAR / TAF 
METAR KAUS 141053Z 00000KT 6SM BR OVC004 25/24 A3002 RMK AO2 LTG DSNT S RAE01 SLP156 P0000 T02500244 VISNO RWY17R $

TAF KAUS 141120Z 1412/1518 11004KT 6SM -RA BKN005 OVC015 TEMPO 1412/1414 2SM TSRA OVC004CB FM141400 14004KT 5SM -TSRA BKN010 BKN030CB FM141700 18007KT P6SM -SHRA BKN025 FM141900 14006KT P6SM BKN040 BKN100 OVC200 FM150600 11005KT P6SM BKN030 OVC100

flight Live Traffic

flight_takeoff 110 Departures
flight_land 123 Arrivals

Arrival

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
05:31 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
180° / 12 kt
Visibility
10 SM
Ceiling
CLR
Temp / Dew
18°C / 9°C
Altimeter
30.22 inHg

Obs: 2026-07-14T10:53:00.000Z

Raw METAR / TAF 
METAR KDEN 141053Z 18012KT 10SM CLR 18/09 A3022 RMK AO2 SLP139 T01830094

TAF KDEN 141121Z 1412/1518 19011KT P6SM SKC FM141300 23006KT P6SM SKC FM141500 VRB06KT P6SM FEW110 FM141700 10011KT P6SM FEW110 FM142100 12014G22KT P6SM FEW110 FM150100 15014G22KT P6SM FEW110 FM150500 18014G22KT P6SM SKC FM151000 18012KT P6SM SKC FM151400 23006KT P6SM SKC

flight Live Traffic

flight_takeoff 302 Departures
flight_land 351 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-14 AB2520 AUS → DEN Jul 14, 00:40 UTCJul 14, 02:25 UTC1h 45m - -
2026-07-13 AB77D5 AUS → DEN Jul 13, 00:10 UTCJul 13, 02:20 UTC2h 10m - -
2026-07-11 A5CF3C - Jul 11, 12:35 UTCJul 11, 23:20 UTC10h 45m - -
2026-07-10 AB819C AUS → DEN Jul 10, 23:50 UTCJul 11, 01:55 UTC2h 5m - -
2026-07-10 AAF27C AUS → DEN Jul 10, 00:35 UTCJul 10, 02:55 UTC2h 20m - -
2026-07-08 AB97E6 AUS → DEN Jul 8, 23:35 UTCJul 9, 01:40 UTC2h 5m - -
2026-07-08 ABA91B AUS → DEN Jul 8, 00:05 UTCJul 8, 02:21 UTC2h 16m +36m +13m
2026-07-08 ABA91B AUS → DEN Jul 8, 00:00 UTCJul 8, 02:20 UTC2h 20m - -
2026-07-07 AB9B9D AUS → DEN Jul 7, 00:20 UTCJul 7, 02:05 UTC1h 45m - -
2026-07-05 AAFDA1 AUS → DEN Jul 5, 23:40 UTCJul 6, 01:50 UTC2h 10m - -
2026-07-04 AB9078 AUS → DEN Jul 4, 00:49 UTCJul 4, 02:58 UTC2h 9m +80m -34m
2026-07-04 AB9078 AUS → DEN Jul 4, 01:05 UTCJul 4, 03:15 UTC2h 10m - -
2026-07-03 AB48E8 AUS → DEN Jul 3, 00:05 UTCJul 3, 02:20 UTC2h 15m - -
2026-07-01 AAFDA1 AUS → DEN Jul 1, 23:40 UTCJul 2, 01:30 UTC1h 50m - -
2026-06-30 AB6CB0 AUS → DEN Jun 30, 23:40 UTCJul 1, 01:25 UTC1h 45m - -
2026-06-29 AB3655 AUS → DEN Jun 29, 23:34 UTCJun 30, 01:19 UTC1h 45m - -
2026-06-28 AC033E AUS → DEN Jun 28, 23:34 UTCJun 29, 01:20 UTC1h 45m - -
2026-06-27 A12B0A - Jun 27, 19:15 UTCJun 27, 23:00 UTC3h 45m - -
2026-06-26 AC4717 AUS → DEN Jun 26, 23:39 UTCJun 27, 01:54 UTC2h 15m - -
2026-06-25 ABB440 AUS → DEN Jun 25, 23:34 UTCJun 26, 01:45 UTC2h 10m - -
2026-06-25 AC4107 AUS → DEN Jun 25, 01:04 UTCJun 25, 02:54 UTC1h 50m - -
2026-06-23 AB3655 AUS → DEN Jun 23, 23:55 UTCJun 24, 02:09 UTC2h 15m - -
2026-06-22 AC0AAC AUS → DEN Jun 22, 23:45 UTCJun 23, 01:40 UTC1h 55m - -
2026-06-21 AB890A - Jun 21, 23:55 UTCJun 22, 02:04 UTC2h 10m - -
2026-06-21 A126C3 EWR → RDU Jun 21, 01:59 UTCJun 21, 03:05 UTC1h 5m - -
2026-06-19 AB417A AUS → DEN Jun 19, 23:59 UTCJun 20, 01:50 UTC1h 50m - -
2026-06-18 AC2E74 AUS → DEN Jun 18, 23:55 UTCJun 19, 01:45 UTC1h 49m - -
2026-06-18 AC2E74 AUS → DEN Jun 18, 23:43 UTCJun 19, 01:40 UTC1h 57m +14m on time
2026-06-17 ABA30B AUS → DEN Jun 17, 23:40 UTCJun 18, 01:30 UTC1h 50m - -
2026-06-16 AB1644 AUS → DEN Jun 16, 23:40 UTCJun 17, 01:30 UTC1h 50m - -

Performance history

Flights tracked
105 showing last 30
Avg arrival delay
-7m
On-time arrival
100% 100% on time
Aircraft used
25

Monthly activity 4 months

Month Flights tracked
July 2026 14
June 2026 33
May 2026 38
April 2026 20

UAL439 frequently asked

Where does flight UAL439 fly?
UAL439 flies from AUS to DEN. View the full route page.
How long is flight UAL439?
Based on observed flights, UAL439 takes on average 2h 20m from takeoff to landing.
How often does UAL439 fly?
UAL439 has been observed flying several times a week in our tracking data. We've recorded 105 flights under this callsign.
Is flight UAL439 usually on time?
Across recent flights, UAL439 arrives 7 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL439?
UAL439 has been operated by 25 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL439 live?
Yes. When UAL439 is currently airborne, the live tracker map above shows its real-time position from ADS-B broadcasts. If the map is empty, the flight is not currently in the air.