UAL234 is operated by UNITED AIRLINES INC between Cleveland Hopkins International Airport (KCLE) and San Francisco International Airport (KSFO). The flight is most often flown by a BOEING Boeing 737 MAX 8. Typical block time is 4h 11m. SkyMeter has observed 111 legs of this flight number via ADS-B.

✈
FLIGHTS
111
last 90 days
⏱
AVG DURATION
4h 11m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
15 / 8
city pairs · airframes
⚠
INCIDENT RATE
1.8%
2 flagged

Routes flown

By count · last 90 days

9
KCLE → KSFO
49
avg 4h 57m · Cleveland Hopkins → San Francisco
KSFO → KDTW
23
avg 4h 28m · San Francisco → Detroit Metropolitan Wayne County
KLAX → KORD
12
avg 3h 46m · Los Angeles → Chicago O'Hare
KFLL → KCLE
7
avg 2h 41m · Fort Lauderdale Hollywood → Cleveland Hopkins
KHAF → KDTW
3
avg 4h 36m · Half Moon Bay → Detroit Metropolitan Wayne County
KEWR → KSEA
3
avg 5h 41m · Newark Liberty → Seattle Tacoma
KSFO → KOMA
3
avg 2h 57m · San Francisco → Eppley Airfield
KLAX → KLAS
2
avg 56m · Los Angeles → McCarran
US-1410 → KORD
1
avg 4h 3m · Sheraton Gateway Los Angeles Hotel Helipad → Chicago O'Hare

Aircraft types

Equipment used on this number

8
B38M BOEING Boeing 737 MAX 8
104
B39M BOEING Boeing 737 MAX 9
52
A21N AIRBUS Airbus A321 Neo
40
B738 BOEING Boeing 737-800
15
B739 BOEING Boeing 737-900
12
B37M BOEING Boeing 737 MAX 7
3
A319 AIRBUS Airbus A319
2
A320 AIRBUS Airbus A320
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
2
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 UAL234

30
N17349BOEING Boeing 737 MAX 8
→
07/19/2026
2h 10m
No alerts
Replay Analysis
N17596BOEING Boeing 737 MAX 9
→
07/19/2026
4h 26m
No alerts
Replay Analysis
N27251BOEING Boeing 737 MAX 8
→
07/18/2026
3h 23m
No alerts
Replay Analysis
N27251BOEING Boeing 737 MAX 8
→
07/17/2026
1h 30m
No alerts
Replay Analysis
N27251BOEING Boeing 737 MAX 8
→
07/17/2026
4h 54m
No alerts
Replay Analysis
N37549BOEING Boeing 737 MAX 9
→
07/17/2026
4h 38m
No alerts
Replay Analysis
N37368BOEING Boeing 737 MAX 8
→
07/17/2026
2h 25m
No alerts
Replay Analysis
N37368BOEING Boeing 737 MAX 8
→
07/16/2026
2h 3m
No alerts
Replay Analysis
N37368BOEING Boeing 737 MAX 8
→
07/16/2026
4h 29m
No alerts
Replay Analysis
N57451BOEING Boeing 737 MAX 9
→
07/16/2026
4h 38m
No alerts
Replay Analysis
N817UAAIRBUS Airbus A319
→
07/15/2026
3h 10m
No alerts
Replay Analysis
N17312BOEING Boeing 737 MAX 8
→
07/14/2026
4h 17m
No alerts
Replay Analysis
N27509BOEING Boeing 737 MAX 9
→
07/13/2026
4h 36m
No alerts
Replay Analysis
N47345BOEING Boeing 737 MAX 8
→
07/13/2026
3h 4m
No alerts
Replay Analysis
N47345BOEING Boeing 737 MAX 8
→
07/12/2026
4h 20m
No alerts
Replay Analysis
N47345BOEING Boeing 737 MAX 8
→
07/12/2026
1h 15m
No alerts
Replay Analysis
N17452BOEING Boeing 737 MAX 9
→
07/12/2026
4h 28m
No alerts
Replay Analysis
N27268BOEING Boeing 737 MAX 8
→
07/11/2026
3h 6m
No alerts
Replay Analysis
N27268BOEING Boeing 737 MAX 8
→
07/10/2026
1h 45m
No alerts
Replay Analysis
N27268BOEING Boeing 737 MAX 8
→
07/10/2026
4h 51m
No alerts
Replay Analysis
N47505BOEING Boeing 737 MAX 9
→
07/10/2026
4h 27m
No alerts
Replay Analysis
N17262BOEING Boeing 737 MAX 8
→
07/10/2026
3h 55m
No alerts
Replay Analysis
N17262BOEING Boeing 737 MAX 8
→
07/09/2026
1h 4m
No alerts
Replay Analysis
N17262BOEING Boeing 737 MAX 8
→
07/09/2026
5h 0m
No alerts
Replay Analysis
N17583BOEING Boeing 737 MAX 9
→
07/09/2026
5h 4m
No alerts
Replay Analysis
N897UAAIRBUS Airbus A319
→
07/08/2026
2h 53m
No alerts
Replay Analysis
N17337BOEING Boeing 737 MAX 8
→
07/07/2026
2h 44m
No alerts
Replay Analysis
N17337BOEING Boeing 737 MAX 8
→
07/06/2026
4h 38m
No alerts
Replay Analysis
N17337BOEING Boeing 737 MAX 8
→
07/06/2026
1h 53m
No alerts
Replay Analysis
N17423BOEING Boeing 737 MAX 9
→
07/06/2026
4h 13m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window