UAL439 is operated by UMB BANK NA TRUSTEE between Austin Bergstrom International Airport (KAUS) and Denver International Airport (KDEN). The flight is most often flown by a AIRBUS Airbus A319. Typical block time is 1h 53m. SkyMeter has observed 41 legs of this flight number via ADS-B.

✈
FLIGHTS
41
last 90 days
⏱
AVG DURATION
1h 53m
tracked time
📅
SERVICE PERIOD
04/17/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
10 / 3
city pairs · airframes
⚠
INCIDENT RATE
7.3%
3 flagged

Routes flown

By count · last 90 days

6
KAUS → KDEN
19
avg 2h 24m · Austin Bergstrom → Denver
KIND → KORD
2
avg 48m · Indianapolis → Chicago O'Hare
KSFO → KAUS
1
avg 3h 43m · San Francisco → Austin Bergstrom
US-0188 → KAUS
1
avg 2h 52m · Coast Guard Air Station San Francisco → Austin Bergstrom
02XS → KDEN
1
avg 1h 57m · Seidel Ranch → Denver
KSFO → KATL
1
avg 4h 32m · San Francisco → Hartsfield Jackson Atlanta

Aircraft types

Equipment used on this number

3
A319 AIRBUS Airbus A319
41
A320 AIRBUS Airbus A320
20
B38M BOEING Boeing 737 MAX 8
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
3
Rejected TO
0
Stall warnings
0
Overspeeds
0
Runway excursion
0
Counts represent flights with at least one occurrence of each flag, not the total event count. See /incidents for individual events.

Recent flights

Newest 30 operations of UAL439

30
N832UAAIRBUS Airbus A319
→
06/03/2026
2h 9m
No alerts
Replay Analysis
N832UAAIRBUS Airbus A319
→
06/02/2026
8m
No alerts
Replay Analysis
N832UAAIRBUS Airbus A319
→
06/02/2026
6m
No alerts
Replay Analysis
N892UAAIRBUS Airbus A319
→
06/02/2026
2h 11m
No alerts
Replay Analysis
N834UAAIRBUS Airbus A319
→
05/31/2026
36m
No alerts
Replay Analysis
N892UAAIRBUS Airbus A319
→
05/29/2026
5m
No alerts
Replay Analysis
N443UAAIRBUS Airbus A320
→
05/29/2026
1h 35m
No alerts
Replay Analysis
N443UAAIRBUS Airbus A320
→
05/28/2026
36m
No alerts
Replay Analysis
N443UAAIRBUS Airbus A320
→
05/28/2026
2h 12m
No alerts
Replay Analysis
N872UAAIRBUS Airbus A319
→
05/28/2026
2h 23m
No alerts
Replay Analysis
N4888UAIRBUS Airbus A319
→
05/26/2026
2h 54m
No alerts
Replay Analysis
N820UAAIRBUS Airbus A319
→
05/25/2026
1h 54m
No alerts
Replay Analysis
N820UAAIRBUS Airbus A319
→
05/24/2026
32m
No alerts
Replay Analysis
N820UAAIRBUS Airbus A319
→
05/24/2026
2h 27m
No alerts
Replay Analysis
N27261BOEING Boeing 737 MAX 8
→
05/23/2026
4h 32m
No alerts
Replay Analysis
N809UAAIRBUS Airbus A319
→
05/23/2026
1h 42m
△ Unstable
Replay Analysis
N809UAAIRBUS Airbus A319
→
05/22/2026
38m
No alerts
Replay Analysis
N454UAAIRBUS Airbus A320
→
05/22/2026
2h 11m
No alerts
Replay Analysis
N454UAAIRBUS Airbus A320
→
05/21/2026
34m
No alerts
Replay Analysis
N454UAAIRBUS Airbus A320
→
05/21/2026
2h 46m
No alerts
Replay Analysis
N498UAAIRBUS Airbus A320
→
05/21/2026
2h 18m
△ Unstable
Replay Analysis
N496UAAIRBUS Airbus A320
→
05/20/2026
3h 15m
No alerts
Replay Analysis
N838UAAIRBUS Airbus A319
→
05/18/2026
11m
No alerts
Replay Analysis
N836UAAIRBUS Airbus A319
→
05/18/2026
2h 19m
△ Unstable
Replay Analysis
N836UAAIRBUS Airbus A319
→
05/17/2026
17m
No alerts
Replay Analysis
N834UAAIRBUS Airbus A319
→
05/17/2026
2h 49m
No alerts
Replay Analysis
N848UAAIRBUS Airbus A319
→
05/16/2026
1h 50m
No alerts
Replay Analysis
N848UAAIRBUS Airbus A319
→
05/15/2026
41m
No alerts
Replay Analysis
N848UAAIRBUS Airbus A319
→
05/15/2026
2h 33m
No alerts
Replay Analysis
N807UAAIRBUS Airbus A319
→
05/15/2026
2h 0m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window