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 56m. SkyMeter has observed 196 legs of this flight number via ADS-B.

✈
FLIGHTS
196
last 90 days
⏱
AVG DURATION
1h 56m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/30/2026
first → last seen
🗺
ROUTES / TYPES
15 / 7
city pairs · airframes
⚠
INCIDENT RATE
0.5%
1 flagged

Routes flown

By count · last 90 days

10
KSMF → KDEN
70
avg 2h 15m · Sacramento → Denver
KDEN → KORD
63
avg 2h 23m · Denver → Chicago O'Hare
KORD → KCLE
12
avg 55m · Chicago O'Hare → Cleveland Hopkins
LL95 → KORD
1
avg 22m · Clarke Heliport → Chicago O'Hare
40IS → KORD
1
avg 14m · Children's Memorial Hospital 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
IL70 → KORD
1
avg 15m · Wgn-Tv Heliport → Chicago O'Hare
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

7
A21N AIRBUS Airbus A321 Neo
118
A320 AIRBUS Airbus A320
76
B738 BOEING Boeing 737-800
5
B737 BOEING Boeing 737-700
5
B739 BOEING Boeing 737-900
4
A319 AIRBUS Airbus A319
3
B39M BOEING Boeing 737 MAX 9
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
N433UAAIRBUS Airbus A320
→
08/30/2026
2h 12m
No alerts
Replay Analysis
N14553AIRBUS Airbus A321 Neo
→
08/29/2026
2h 13m
No alerts
Replay Analysis
N454UAAIRBUS Airbus A320
→
08/29/2026
2h 9m
No alerts
Replay Analysis
N14504AIRBUS Airbus A321 Neo
→
08/29/2026
13m
No alerts
Replay Analysis
N480UAAIRBUS Airbus A320
→
08/27/2026
2h 20m
No alerts
Replay Analysis
N54570AIRBUS Airbus A321 Neo
→
08/25/2026
2h 19m
No alerts
Replay Analysis
N465UAAIRBUS Airbus A320
→
08/25/2026
2h 49m
No alerts
Replay Analysis
N24573
→
08/24/2026
35m
No alerts
Replay Analysis
N24573
→
08/23/2026
2h 45m
No alerts
Replay Analysis
N24573
→
08/23/2026
2h 9m
No alerts
Replay Analysis
N435UAAIRBUS Airbus A320
→
08/23/2026
2h 14m
No alerts
Replay Analysis
N34547AIRBUS Airbus A321 Neo
→
08/23/2026
1h 15m
No alerts
Replay Analysis
N34547AIRBUS Airbus A321 Neo
→
08/22/2026
3h 0m
No alerts
Replay Analysis
N34547AIRBUS Airbus A321 Neo
→
08/22/2026
1h 45m
No alerts
Replay Analysis
N494UAAIRBUS Airbus A320
→
08/22/2026
2h 8m
No alerts
Replay Analysis
N14507AIRBUS Airbus A321 Neo
→
08/22/2026
2h 24m
No alerts
Replay Analysis
N54543AIRBUS Airbus A321 Neo
→
08/20/2026
1h 40m
No alerts
Replay Analysis
N14524AIRBUS Airbus A321 Neo
→
08/18/2026
2h 8m
No alerts
Replay Analysis
N460UAAIRBUS Airbus A320
→
08/18/2026
2h 16m
No alerts
Replay Analysis
N14548AIRBUS Airbus A321 Neo
→
08/17/2026
2h 7m
No alerts
Replay Analysis
N478UAAIRBUS Airbus A320
→
08/17/2026
2h 15m
No alerts
Replay Analysis
N14511AIRBUS Airbus A321 Neo
→
08/17/2026
15m
No alerts
Replay Analysis
N14511AIRBUS Airbus A321 Neo
→
08/17/2026
1h 7m
No alerts
Replay Analysis
N14511AIRBUS Airbus A321 Neo
→
08/16/2026
1h 26m
No alerts
Replay Analysis
N14511AIRBUS Airbus A321 Neo
→
08/16/2026
2h 34m
No alerts
Replay Analysis
N458UAAIRBUS Airbus A320
→
08/16/2026
2h 26m
No alerts
Replay Analysis
N14553AIRBUS Airbus A321 Neo
→
08/16/2026
1h 17m
No alerts
Replay Analysis
N14553AIRBUS Airbus A321 Neo
→
08/15/2026
57m
No alerts
Replay Analysis
N14553AIRBUS Airbus A321 Neo
→
08/15/2026
2h 15m
No alerts
Replay Analysis
N472UAAIRBUS Airbus A320
→
08/15/2026
2h 18m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window