UAL3923

UNITED AIRLINES INC · DEN → SFO

UAL3923 is operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and San Francisco International Airport (KSFO). The flight is most often flown by a BOEING Boeing 777-200. Typical block time is 2h 12m. SkyMeter has observed 21 legs of this flight number via ADS-B.

✈
FLIGHTS
21
last 90 days
⏱
AVG DURATION
2h 12m
tracked time
📅
SERVICE PERIOD
05/29/2025 → 08/16/2026
first → last seen
🗺
ROUTES / TYPES
19 / 10
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

10
KDEN → KSFO
2
avg 2h 48m · Denver → San Francisco
KSFO → KIAH
2
avg 3h 38m · San Francisco → George Bush Intercontinental Houston
KBNA → KIAD
1
avg 1h 36m · Nashville → Washington Dulles
KORD → KRFD
1
avg 24m · Chicago O'Hare → Chicago Rockford
KCHD → KIAH
1
avg 2h 17m · Chandler → George Bush Intercontinental Houston
KORD → KSFO
1
avg 4h 9m · Chicago O'Hare → San Francisco
KEWR → KBNA
1
avg 2h 1m · Newark Liberty → Nashville
KIAD → KEWR
1
avg 1h 22m · Washington Dulles → Newark Liberty
KEWR → KLGA
1
avg 53m · Newark Liberty → La Guardia
KSTL → KICT
1
avg 56m · St Louis Lambert → Wichita Eisenhower National

Aircraft types

Equipment used on this number

10
B772 BOEING Boeing 777-200
4
A320 AIRBUS Airbus A320
3
A21N AIRBUS Airbus A321 Neo
2
B739 BOEING Boeing 737-900
2
A319 AIRBUS Airbus A319
2
B789 BOEING Boeing 787-9 Dreamliner
2
B38M BOEING Boeing 737 MAX 8
1
B39M BOEING Boeing 737 MAX 9
1
B737 BOEING Boeing 737-700
1
B763 BOEING Boeing 767-300
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
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 UAL3923

30
N435UAAIRBUS Airbus A320
→
08/16/2026
2h 24m
No alerts
Replay Analysis
N57864BOEING Boeing 757-300
→
08/14/2026
1h 10m
No alerts
Replay Analysis
N684UABOEING Boeing 767-300
→
08/10/2026
2h 55m
No alerts
Replay Analysis
N892UAAIRBUS Airbus A319
→
08/07/2026
2h 1m
No alerts
Replay Analysis
N73406BOEING Boeing 737-900
→
08/06/2026
2h 16m
No alerts
Replay Analysis
N76021BOEING Boeing 777-200
→
07/31/2026
3h 53m
No alerts
Replay Analysis
N14540AIRBUS Airbus A321 Neo
→
07/29/2026
2h 15m
No alerts
Replay Analysis
N484UAAIRBUS Airbus A320
→
07/28/2026
56m
No alerts
Replay Analysis
N13138BOEING Boeing 757-200
→
07/23/2026
1h 21m
No alerts
Replay Analysis
N29961BOEING Boeing 787-9 Dreamliner
→
07/16/2026
3h 12m
No alerts
Replay Analysis
N17339BOEING Boeing 737 MAX 8
→
07/06/2026
6h 1m
No alerts
Replay Analysis
N451UAAIRBUS Airbus A320
→
07/04/2026
1h 35m
No alerts
Replay Analysis
N69835BOEING Boeing 737-900
→
07/01/2026
24m
No alerts
Replay Analysis
N28987BOEING Boeing 787-9 Dreamliner
→
06/29/2026
1h 50m
No alerts
Replay Analysis
N774UABOEING Boeing 777-200
→
06/26/2026
4h 9m
No alerts
Replay Analysis
N774UABOEING Boeing 777-200
→
06/26/2026
5m
No alerts
Replay Analysis
N17719BOEING Boeing 737-700
→
06/21/2026
57m
No alerts
Replay Analysis
N227UABOEING Boeing 777-200
→
06/18/2026
3h 22m
No alerts
Replay Analysis
N893UAAIRBUS Airbus A319
→
06/11/2026
1h 27m
No alerts
Replay Analysis
N14544AIRBUS Airbus A321 Neo
→
06/05/2026
53m
No alerts
Replay Analysis
N37532BOEING Boeing 737 MAX 9
→
05/24/2026
3h 3m
No alerts
Replay Analysis
N2644UBOEING Boeing 777-300ER
→
05/10/2026
4h 25m
No alerts
Replay Analysis
N17401BOEING Boeing 737 MAX 9
→
05/04/2026
1h 56m
No alerts
Replay Analysis
N17591BOEING Boeing 737 MAX 9
→
05/03/2026
2h 8m
No alerts
Replay Analysis
N17591BOEING Boeing 737 MAX 9
→
05/03/2026
2h 8m
No alerts
Replay Analysis
N17591BOEING Boeing 737 MAX 9
→
05/02/2026
2h 22m
No alerts
Replay Analysis
N17591BOEING Boeing 737 MAX 9
→
05/02/2026
14m
No alerts
Replay Analysis
N17591BOEING Boeing 737 MAX 9
→
05/02/2026
14m
No alerts
Replay Analysis
N47512BOEING Boeing 737 MAX 9
→
04/30/2026
2h 33m
No alerts
Replay Analysis
N654UABOEING Boeing 767-300
→
04/20/2026
1h 10m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window