UAL1023

UNITED AIRLINES INC · SMF → DEN

UAL1023 is operated by UNITED AIRLINES INC between Sacramento International Airport (KSMF) and Denver International Airport (KDEN). The flight is most often flown by a AIRBUS Airbus A321 Neo. Typical block time is 1h 53m. SkyMeter has observed 215 legs of this flight number via ADS-B.

✈
FLIGHTS
215
last 90 days
⏱
AVG DURATION
1h 53m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/5/2026
first → last seen
🗺
ROUTES / TYPES
15 / 8
city pairs · airframes
⚠
INCIDENT RATE
0.5%
1 flagged

Routes flown

By count · last 90 days

10
KSMF → KDEN
75
avg 2h 15m · Sacramento → Denver
KDEN → KORD
63
avg 2h 24m · Denver → Chicago O'Hare
KORD → KCLE
10
avg 57m · Chicago O'Hare → Cleveland Hopkins
40IS → KORD
2
avg 21m · Children's Memorial Hospital Heliport → Chicago O'Hare
IL70 → KORD
2
avg 14m · Wgn-Tv Heliport → Chicago O'Hare
LL95 → KORD
1
avg 22m · Clarke Heliport → Chicago O'Hare
US-0263 → KORD
1
avg 13m · Ravenswood → Chicago O'Hare
KSMF → KFTG
1
avg 2h 10m · Sacramento → Colorado Air and Space Port
LL35 → KORD
1
avg 15m · Chicago Fire Dept Air Sea Rescue Heliport → Chicago O'Hare
L36 → KDEN
1
avg 1h 58m · Rio Linda → Denver

Aircraft types

Equipment used on this number

8
A21N AIRBUS Airbus A321 Neo
132
A320 AIRBUS Airbus A320
83
B738 BOEING Boeing 737-800
5
B737 BOEING Boeing 737-700
4
A319 AIRBUS Airbus A319
3
B739 BOEING Boeing 737-900
3
B39M BOEING Boeing 737 MAX 9
1
ST75 ST75
1

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
N14557AIRBUS Airbus A321 Neo
→
9/5/2026
2h 16m
No alerts
Replay Analysis
N440UAAIRBUS Airbus A320
→
9/5/2026
13m
No alerts
Replay Analysis
N440UAAIRBUS Airbus A320
→
9/5/2026
1h 59m
No alerts
Replay Analysis
N24573
→
9/5/2026
27m
No alerts
Replay Analysis
N24573
→
9/4/2026
2h 5m
No alerts
Replay Analysis
N472UAAIRBUS Airbus A320
→
9/4/2026
2h 4m
No alerts
Replay Analysis
N24568
→
9/4/2026
24m
No alerts
Replay Analysis
N24568
→
9/4/2026
25m
No alerts
Replay Analysis
N14565AIRBUS Airbus A321 Neo
→
9/2/2026
2h 15m
No alerts
Replay Analysis
N440UAAIRBUS Airbus A320
→
9/2/2026
2h 8m
No alerts
Replay Analysis
N14517AIRBUS Airbus A321 Neo
→
9/2/2026
25m
No alerts
Replay Analysis
N14517AIRBUS Airbus A321 Neo
→
9/1/2026
2h 9m
No alerts
Replay Analysis
N454UAAIRBUS Airbus A320
→
9/1/2026
2h 7m
No alerts
Replay Analysis
N14554AIRBUS Airbus A321 Neo
→
9/1/2026
13m
No alerts
Replay Analysis
N14554AIRBUS Airbus A321 Neo
→
9/1/2026
2h 36m
No alerts
Replay Analysis
N14554AIRBUS Airbus A321 Neo
→
9/1/2026
13m
No alerts
Replay Analysis
N433UAAIRBUS Airbus A320
→
8/31/2026
11m
No alerts
Replay Analysis
N433UAAIRBUS Airbus A320
→
8/31/2026
2h 18m
No alerts
Replay Analysis
N54558AIRBUS Airbus A321 Neo
→
8/31/2026
1h 19m
No alerts
Replay Analysis
N54558AIRBUS Airbus A321 Neo
→
8/30/2026
1h 6m
No alerts
Replay Analysis
N54558AIRBUS Airbus A321 Neo
→
8/30/2026
2h 26m
No alerts
Replay Analysis
N433UAAIRBUS Airbus A320
→
8/30/2026
2h 12m
No alerts
Replay Analysis
N14553AIRBUS Airbus A321 Neo
→
8/30/2026
18m
No alerts
Replay Analysis
N14553AIRBUS Airbus A321 Neo
→
8/29/2026
2h 13m
No alerts
Replay Analysis
N454UAAIRBUS Airbus A320
→
8/29/2026
2h 9m
No alerts
Replay Analysis
N14504AIRBUS Airbus A321 Neo
→
8/29/2026
13m
No alerts
Replay Analysis
N14504AIRBUS Airbus A321 Neo
→
8/28/2026
2h 9m
No alerts
Replay Analysis
N458UAAIRBUS Airbus A320
→
8/28/2026
2h 17m
No alerts
Replay Analysis
N94556AIRBUS Airbus A321 Neo
→
8/27/2026
2h 13m
No alerts
Replay Analysis
N480UAAIRBUS Airbus A320
→
8/27/2026
2h 20m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window