Flight Status & Tracker

UAL3904

UMB BANK NA TRUSTEE · SFO → LAX · Last tracked Oct 25, 2026

UAL3904 is a flight number operated by UMB BANK NA TRUSTEE between San Francisco International Airport (KSFO) and Los Angeles International Airport (KLAX). SkyMeter last tracked UAL3904 on October 25, 2026. The flight is most often flown by a BOEING Boeing 737-700. Typical block time is 2h 50m. SkyMeter has observed 23 legs of this flight number via ADS-B.

SkyMeter tracks historical flight activity from ADS-B data — this is not a live gate-to-gate status feed.

✈
FLIGHTS
23
last 90 days
⏱
AVG DURATION
2h 50m
tracked time
📅
SERVICE PERIOD
6/3/2025 → 10/25/2026
first → last seen
🗺
ROUTES / TYPES
22 / 10
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

10
KSFO → KLAX
2
avg 1h 40m · San Francisco → Los Angeles
MMMX → KSFO
1
avg 4h 8m · Licenciado Benito Juarez → San Francisco
KOMA → KMSN
1
avg 54m · Eppley Airfield → Dane County Regional Truax Field
KDEN → KOMA
1
avg 1h 27m · Denver → Eppley Airfield
KIAH → KIAD
1
avg 2h 28m · George Bush Intercontinental Houston → Washington Dulles
KDEN → KSFO
1
avg 2h 54m · Denver → San Francisco
US-0188 → KORD
1
avg 4h 3m · Coast Guard Air Station San Francisco → Chicago O'Hare
LSZH → KIAD
1
avg 9h 31m · Zürich → Washington Dulles
KMKE → KCLE
1
avg 50m · General Mitchell → Cleveland Hopkins
KCHS → KCLE
1
avg 1h 31m · Charleston Air Force Base-International → Cleveland Hopkins

Aircraft types

Equipment used on this number

10
B737 BOEING Boeing 737-700
4
B772 BOEING Boeing 777-200
3
B738 BOEING Boeing 737-800
3
B789 BOEING Boeing 787-9 Dreamliner
3
B39M BOEING Boeing 737 MAX 9
2
A320 AIRBUS Airbus A320
2
B38M BOEING Boeing 737 MAX 8
1
A319 AIRBUS Airbus A319
1
B739 BOEING Boeing 737-900
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 UAL3904

30
N77571BOEING Boeing 737 MAX 9
→
10/25/2026
2h 10m
No alerts
Replay Analysis
N27724BOEING Boeing 737-700
→
10/24/2026
16m
No alerts
Replay Analysis
N27724BOEING Boeing 737-700
→
10/24/2026
1h 28m
No alerts
Replay Analysis
N17122BOEING Boeing 757-200
→
10/23/2026
1h 14m
No alerts
Replay Analysis
N77261BOEING Boeing 737-800
→
10/22/2026
1h 6m
No alerts
Replay Analysis
N29977BOEING Boeing 787-9 Dreamliner
→
10/20/2026
13h 31m
No alerts
Replay Analysis
N771UABOEING Boeing 777-200
→
10/14/2026
2h 53m
No alerts
Replay Analysis
N29991BOEING Boeing 787-9 Dreamliner
→
10/12/2026
2h 20m
No alerts
Replay Analysis
N654UABOEING Boeing 767-300
→
10/10/2026
9h 31m
No alerts
Replay Analysis
N786UABOEING Boeing 777-200
→
10/3/2026
2h 27m
No alerts
Replay Analysis
N490UAAIRBUS Airbus A320
→
10/2/2026
4h 8m
No alerts
Replay Analysis
N76254BOEING Boeing 737-800
→
9/22/2026
1h 42m
No alerts
Replay Analysis
N17752BOEING Boeing 737-700
→
9/21/2026
4h 3m
No alerts
Replay Analysis
N771UABOEING Boeing 777-200
→
9/21/2026
5h 19m
No alerts
Replay Analysis
N33714BOEING Boeing 737-700
→
9/20/2026
53m
No alerts
Replay Analysis
N35953BOEING Boeing 787-9 Dreamliner
→
9/15/2026
2h 4m
No alerts
Replay Analysis
N37472BOEING Boeing 737 MAX 9
→
9/4/2026
38m
No alerts
Replay Analysis
N34455BOEING Boeing 737-900
→
8/31/2026
43m
No alerts
Replay Analysis
N37324BOEING Boeing 737 MAX 8
→
8/28/2026
1h 30m
No alerts
Replay Analysis
N56859BOEING Boeing 757-300
→
8/7/2026
4h 3m
No alerts
Replay Analysis
N36272BOEING Boeing 737-800
→
8/2/2026
47m
No alerts
Replay Analysis
N804UAAIRBUS Airbus A319
→
7/29/2026
49m
No alerts
Replay Analysis
N481UAAIRBUS Airbus A320
→
7/28/2026
1h 26m
No alerts
Replay Analysis
N17455BOEING Boeing 737 MAX 9
→
7/25/2026
3h 3m
No alerts
Replay Analysis
N69063BOEING Boeing 767-400
→
7/23/2026
8h 32m
No alerts
Replay Analysis
N24202BOEING Boeing 737-800
→
7/18/2026
52m
No alerts
Replay Analysis
N18220BOEING Boeing 737-800
→
7/16/2026
1h 15m
No alerts
Replay Analysis
N57286BOEING Boeing 737 MAX 8
→
7/12/2026
4h 39m
No alerts
Replay Analysis
N14735BOEING Boeing 737-700
→
7/4/2026
2h 15m
No alerts
Replay Analysis
N74856BOEING Boeing 757-300
→
7/2/2026
1h 48m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window