UAL1023

UNITED AIRLINES INC · DEN → ORD

UAL1023 is operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and Chicago O'Hare International Airport (KORD). The flight is most often flown by a AIRBUS Airbus A321 Neo. Typical block time is 1h 52m. SkyMeter has observed 185 legs of this flight number via ADS-B.

✈
FLIGHTS
185
last 90 days
⏱
AVG DURATION
1h 52m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
14 / 7
city pairs · airframes
⚠
INCIDENT RATE
0.5%
1 flagged

Routes flown

By count · last 90 days

10
KDEN → KORD
70
avg 2h 22m · Denver → Chicago O'Hare
KSMF → KDEN
51
avg 2h 12m · Sacramento → Denver
KORD → KCMH
13
avg 54m · Chicago O'Hare → John Glenn Columbus
KORD → KCLE
12
avg 55m · Chicago O'Hare → Cleveland Hopkins
US-0263 → KORD
1
avg 13m · Ravenswood → Chicago O'Hare
KCOS → KDEN
1
avg 33m · City of Colorado Springs → Denver
LL35 → KORD
1
avg 15m · Chicago Fire Dept Air Sea Rescue Heliport → Chicago O'Hare
IL79 → KORD
1
avg 10m · Presence Resurrection Medical Center Heliport → Chicago O'Hare
L36 → KDEN
1
avg 1h 58m · Rio Linda → Denver
KSMF → KCOS
1
avg 3h 8m · Sacramento → City of Colorado Springs

Aircraft types

Equipment used on this number

7
A21N AIRBUS Airbus A321 Neo
110
A320 AIRBUS Airbus A320
55
B738 BOEING Boeing 737-800
10
B737 BOEING Boeing 737-700
6
A319 AIRBUS Airbus A319
5
B739 BOEING Boeing 737-900
5
B39M BOEING Boeing 737 MAX 9
2

Safety profile

Flagged flights · last 90 days

Go-arounds
1
Unstable approach
0
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 UAL1023

30
N34547AIRBUS Airbus A321 Neo
→
07/19/2026
2h 14m
No alerts
Replay Analysis
N472UAAIRBUS Airbus A320
→
07/19/2026
2h 11m
No alerts
Replay Analysis
N14534AIRBUS Airbus A321 Neo
→
07/19/2026
13m
No alerts
Replay Analysis
N14534AIRBUS Airbus A321 Neo
→
07/18/2026
2h 11m
No alerts
Replay Analysis
N76517BOEING Boeing 737-800
→
07/18/2026
2h 10m
No alerts
Replay Analysis
N34551AIRBUS Airbus A321 Neo
→
07/18/2026
51m
No alerts
Replay Analysis
N34551AIRBUS Airbus A321 Neo
→
07/17/2026
1h 34m
No alerts
Replay Analysis
N34551AIRBUS Airbus A321 Neo
→
07/17/2026
2h 25m
No alerts
Replay Analysis
N467UAAIRBUS Airbus A320
→
07/17/2026
2h 16m
No alerts
Replay Analysis
N24513AIRBUS Airbus A321 Neo
→
07/16/2026
2h 17m
No alerts
Replay Analysis
N497UAAIRBUS Airbus A320
→
07/16/2026
19m
No alerts
Replay Analysis
N497UAAIRBUS Airbus A320
→
07/16/2026
2h 13m
No alerts
Replay Analysis
N44501AIRBUS Airbus A321 Neo
→
07/15/2026
2h 31m
No alerts
Replay Analysis
N457UAAIRBUS Airbus A320
→
07/15/2026
2h 12m
No alerts
Replay Analysis
N14567
→
07/14/2026
2h 28m
No alerts
Replay Analysis
N438UAAIRBUS Airbus A320
→
07/14/2026
2h 18m
No alerts
Replay Analysis
N14541AIRBUS Airbus A321 Neo
→
07/12/2026
2h 32m
No alerts
Replay Analysis
N448UAAIRBUS Airbus A320
→
07/12/2026
2h 11m
No alerts
Replay Analysis
N94556AIRBUS Airbus A321 Neo
→
07/11/2026
2h 25m
No alerts
Replay Analysis
N12218BOEING Boeing 737-800
→
07/11/2026
1h 27m
No alerts
Replay Analysis
N24537AIRBUS Airbus A321 Neo
→
07/10/2026
2h 35m
No alerts
Replay Analysis
N455UAAIRBUS Airbus A320
→
07/10/2026
2h 13m
No alerts
Replay Analysis
N437UAAIRBUS Airbus A320
→
07/09/2026
2h 22m
No alerts
Replay Analysis
N14524AIRBUS Airbus A321 Neo
→
07/09/2026
10m
No alerts
Replay Analysis
N14524AIRBUS Airbus A321 Neo
→
07/08/2026
2h 3m
No alerts
Replay Analysis
N14524AIRBUS Airbus A321 Neo
→
07/08/2026
13m
No alerts
Replay Analysis
N482UAAIRBUS Airbus A320
→
07/08/2026
2h 12m
No alerts
Replay Analysis
N14541AIRBUS Airbus A321 Neo
→
07/07/2026
2h 47m
No alerts
Replay Analysis
N462UAAIRBUS Airbus A320
→
07/07/2026
2h 7m
No alerts
Replay Analysis
N44522AIRBUS Airbus A321 Neo
→
07/06/2026
18m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window