UAL233 is operated by UNITED AIRLINES INC between Los Angeles International Airport (KLAX) and San Francisco International Airport (KSFO). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 1h 23m. SkyMeter has observed 121 legs of this flight number via ADS-B.

✈
FLIGHTS
121
last 90 days
⏱
AVG DURATION
1h 23m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/11/2026
first → last seen
🗺
ROUTES / TYPES
13 / 6
city pairs · airframes
⚠
INCIDENT RATE
0.8%
1 flagged

Routes flown

By count · last 90 days

9
KLAX → KSFO
69
avg 1h 15m · Los Angeles → San Francisco
KSFO → KPHX
25
avg 2h 4m · San Francisco → Phoenix Sky Harbor
KHAF → KPHX
5
avg 2h 5m · Half Moon Bay → Phoenix Sky Harbor
KOAK → KPHX
2
avg 2h 10m · Metropolitan Oakland → Phoenix Sky Harbor
KDFW → KIAH
1
avg 44m · Dallas Fort Worth → George Bush Intercontinental Houston
US-2101 → KSFO
1
avg 1h 22m · Los Angeles Motordrome → San Francisco
US-1410 → KSFO
1
avg 1h 28m · Sheraton Gateway Los Angeles Hotel Helipad → San Francisco
US-0188 → KPHX
1
avg 1h 58m · Coast Guard Air Station San Francisco → Phoenix Sky Harbor
US-1412 → KSFO
1
avg 1h 7m · Skyview Center I Helipad → San Francisco

Aircraft types

Equipment used on this number

6
B39M BOEING Boeing 737 MAX 9
70
B738 BOEING Boeing 737-800
41
B38M BOEING Boeing 737 MAX 8
4
B739 BOEING Boeing 737-900
3
A320 AIRBUS Airbus A320
2
A21N AIRBUS Airbus A321 Neo
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 UAL233

30
N33294BOEING Boeing 737-800
→
8/11/2026
2h 8m
No alerts
Replay Analysis
N37554BOEING Boeing 737 MAX 9
→
8/11/2026
1h 20m
No alerts
Replay Analysis
N17410BOEING Boeing 737 MAX 9
→
8/10/2026
2h 41m
No alerts
Replay Analysis
N67501BOEING Boeing 737 MAX 9
→
8/10/2026
38m
No alerts
Replay Analysis
N77578BOEING Boeing 737 MAX 9
→
8/8/2026
1h 3m
No alerts
Replay Analysis
N73275BOEING Boeing 737-800
→
8/7/2026
2h 10m
No alerts
Replay Analysis
N37555BOEING Boeing 737 MAX 9
→
8/7/2026
1h 27m
No alerts
Replay Analysis
N77520BOEING Boeing 737-800
→
8/6/2026
1h 48m
No alerts
Replay Analysis
N77580BOEING Boeing 737 MAX 9
→
8/6/2026
1h 18m
No alerts
Replay Analysis
N27246BOEING Boeing 737-800
→
8/5/2026
1h 55m
No alerts
Replay Analysis
N37563BOEING Boeing 737 MAX 9
→
8/5/2026
1h 8m
No alerts
Replay Analysis
N76288BOEING Boeing 737-800
→
8/4/2026
2h 40m
No alerts
Replay Analysis
N17593BOEING Boeing 737 MAX 9
→
8/4/2026
1h 21m
No alerts
Replay Analysis
N87507BOEING Boeing 737-800
→
8/3/2026
2h 14m
No alerts
Replay Analysis
N37528BOEING Boeing 737 MAX 9
→
8/3/2026
1h 22m
No alerts
Replay Analysis
N36247BOEING Boeing 737-800
→
8/1/2026
1h 12m
No alerts
Replay Analysis
N73256BOEING Boeing 737-800
→
7/31/2026
1h 59m
No alerts
Replay Analysis
N37513BOEING Boeing 737 MAX 9
→
7/31/2026
1h 19m
No alerts
Replay Analysis
N33289BOEING Boeing 737-800
→
7/30/2026
1h 49m
No alerts
Replay Analysis
N47453BOEING Boeing 737 MAX 9
→
7/30/2026
1h 16m
No alerts
Replay Analysis
N37274BOEING Boeing 737-800
→
7/29/2026
2h 8m
No alerts
Replay Analysis
N17455BOEING Boeing 737 MAX 9
→
7/29/2026
1h 13m
No alerts
Replay Analysis
N77538BOEING Boeing 737-800
→
7/28/2026
2h 4m
No alerts
Replay Analysis
N77585BOEING Boeing 737 MAX 9
→
7/28/2026
1h 28m
No alerts
Replay Analysis
N73270BOEING Boeing 737-800
→
7/27/2026
2h 5m
No alerts
Replay Analysis
N77578BOEING Boeing 737 MAX 9
→
7/27/2026
1h 13m
No alerts
Replay Analysis
N17589BOEING Boeing 737 MAX 9
→
7/25/2026
1h 23m
No alerts
Replay Analysis
N12238BOEING Boeing 737-800
→
7/24/2026
2h 1m
No alerts
Replay Analysis
N17566BOEING Boeing 737 MAX 9
→
7/24/2026
1h 27m
No alerts
Replay Analysis
N36207BOEING Boeing 737-800
→
7/23/2026
2h 1m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window