UAL1204 is operated by UNITED AIRLINES INC between General Mitchell Intl Heliport (KZ12) and Denver International Airport (KDEN). The flight is most often flown by a AIRBUS Airbus A319. Typical block time is 2h 4m. SkyMeter has observed 48 legs of this flight number via ADS-B.

FLIGHTS
48
last 90 days
AVG DURATION
2h 4m
tracked time
📅
SERVICE PERIOD
04/05/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
5 / 2
city pairs · airframes
INCIDENT RATE
2.1%
1 flagged

Routes flown

By count · last 90 days

3
20
avg 2h 23m · General Mitchell Intl Heliport → Denver
12
avg 2h 23m · General Mitchell → Denver
9
avg 2h 8m · Denver → Appleton

Aircraft types

Equipment used on this number

2

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
1
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 UAL1204

30
06/03/2026
1h 58m
No alerts
06/02/2026
2h 8m
No alerts
06/01/2026
1h 58m
No alerts
05/31/2026
2h 28m
No alerts
05/29/2026
1h 47m
No alerts
05/28/2026
2h 2m
No alerts
05/28/2026
1h 58m
No alerts
05/26/2026
1h 57m
No alerts
05/25/2026
2h 18m
No alerts
05/24/2026
1h 42m
No alerts
05/23/2026
2h 7m
No alerts
05/23/2026
1h 36m
No alerts
05/22/2026
2h 14m
No alerts
05/18/2026
2h 21m
No alerts
05/17/2026
2h 30m
No alerts
05/15/2026
2h 19m
No alerts
05/14/2026
2h 17m
No alerts
05/13/2026
2h 17m
No alerts
05/11/2026
2h 32m
No alerts
05/10/2026
2h 27m
No alerts
05/04/2026
2h 23m
No alerts
05/03/2026
2h 14m
No alerts
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window