UAL1233

UNITED AIRLINES INC · DEN → EWR

UAL1233 is operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and Newark Liberty International Airport (KEWR). The flight is most often flown by a AIRBUS Airbus A321 Neo. Typical block time is 2h 39m. SkyMeter has observed 153 legs of this flight number via ADS-B.

✈
FLIGHTS
153
last 90 days
⏱
AVG DURATION
2h 39m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/4/2026
first → last seen
🗺
ROUTES / TYPES
20 / 5
city pairs · airframes
⚠
INCIDENT RATE
3.9%
6 flagged

Routes flown

By count · last 90 days

10
KDEN → KEWR
73
avg 3h 33m · Denver → Newark Liberty
KEWR → KRDU
27
avg 1h 27m · Newark Liberty → Raleigh Durham
KSFO → KDEN
18
avg 2h 34m · San Francisco → Denver
KSYR → KEWR
2
avg 56m · Syracuse Hancock → Newark Liberty
KDEN → KSYR
2
avg 3h 51m · Denver → Syracuse Hancock
KEWR → 9NC0
2
avg 1h 30m · Newark Liberty → Raleigh East
KRIC → KEWR
1
avg 1h 7m · Richmond → Newark Liberty
IS23 → KORD
1
avg 21m · Turner Seaplane Base → Chicago O'Hare
CT35 → KEWR
1
avg 45m · Hamilton Standard Heliport → Newark Liberty
KDEN → KRIC
1
avg 3h 56m · Denver → Richmond

Aircraft types

Equipment used on this number

5
A21N AIRBUS Airbus A321 Neo
104
A319 AIRBUS Airbus A319
46
B39M BOEING Boeing 737 MAX 9
12
B739 BOEING Boeing 737-900
2
ST75 ST75
2

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
6
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 UAL1233

30
N14549AIRBUS Airbus A321 Neo
→
9/4/2026
3h 51m
No alerts
Replay Analysis
N14527AIRBUS Airbus A321 Neo
→
9/2/2026
3h 38m
No alerts
Replay Analysis
N24526AIRBUS Airbus A321 Neo
→
9/1/2026
3h 42m
No alerts
Replay Analysis
N14528AIRBUS Airbus A321 Neo
→
8/31/2026
3h 18m
No alerts
Replay Analysis
N14504AIRBUS Airbus A321 Neo
→
8/30/2026
3h 35m
No alerts
Replay Analysis
N77592BOEING Boeing 737 MAX 9
→
8/29/2026
3h 31m
No alerts
Replay Analysis
N14536AIRBUS Airbus A321 Neo
→
8/28/2026
3h 37m
No alerts
Replay Analysis
N24573
→
8/28/2026
1h 8m
No alerts
Replay Analysis
N24573
→
8/28/2026
4m
No alerts
Replay Analysis
N24573
→
8/28/2026
2m
No alerts
Replay Analysis
N24573
→
8/27/2026
4h 34m
↘ Diverted
Replay Analysis
N14504AIRBUS Airbus A321 Neo
→
8/26/2026
3h 16m
No alerts
Replay Analysis
N74532AIRBUS Airbus A321 Neo
→
8/25/2026
3h 23m
No alerts
Replay Analysis
N34547AIRBUS Airbus A321 Neo
→
8/24/2026
3h 30m
No alerts
Replay Analysis
N14546
→
8/23/2026
3h 27m
No alerts
Replay Analysis
N17594BOEING Boeing 737-900
→
8/22/2026
3h 21m
No alerts
Replay Analysis
N14509AIRBUS Airbus A321 Neo
→
8/21/2026
3h 40m
No alerts
Replay Analysis
N14528AIRBUS Airbus A321 Neo
→
8/21/2026
3h 37m
No alerts
Replay Analysis
N14528AIRBUS Airbus A321 Neo
→
8/20/2026
15m
No alerts
Replay Analysis
N14528AIRBUS Airbus A321 Neo
→
8/20/2026
20m
No alerts
Replay Analysis
N24573
→
8/19/2026
3h 23m
No alerts
Replay Analysis
N14502AIRBUS Airbus A321 Neo
→
8/18/2026
3h 33m
No alerts
Replay Analysis
N74532AIRBUS Airbus A321 Neo
→
8/17/2026
3h 29m
No alerts
Replay Analysis
N14503AIRBUS Airbus A321 Neo
→
8/16/2026
3h 24m
No alerts
Replay Analysis
N27477BOEING Boeing 737-900
→
8/15/2026
3h 27m
No alerts
Replay Analysis
N24537AIRBUS Airbus A321 Neo
→
8/14/2026
3h 42m
No alerts
Replay Analysis
N34551AIRBUS Airbus A321 Neo
→
8/13/2026
3h 53m
No alerts
Replay Analysis
N14524AIRBUS Airbus A321 Neo
→
8/12/2026
2h 30m
No alerts
Replay Analysis
N44522AIRBUS Airbus A321 Neo
→
8/12/2026
2h 42m
No alerts
Replay Analysis
N44522AIRBUS Airbus A321 Neo
→
8/11/2026
3h 47m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window