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 AIRBUS Airbus A321 Neo. Typical block time is 3h 14m. SkyMeter has observed 38 legs of this flight number via ADS-B.

✈
FLIGHTS
38
last 90 days
⏱
AVG DURATION
3h 14m
tracked time
📅
SERVICE PERIOD
04/17/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
14 / 5
city pairs · airframes
⚠
INCIDENT RATE
5.3%
2 flagged

Routes flown

By count · last 90 days

7
KCLE → KSFO
7
avg 4h 57m · Cleveland Hopkins → San Francisco
KFLL → KCLE
6
avg 2h 37m · Fort Lauderdale Hollywood → Cleveland Hopkins
KSFO → KDTW
4
avg 4h 20m · San Francisco → Detroit Metropolitan Wayne County
KLAX → KORD
2
avg 3h 53m · Los Angeles → Chicago O'Hare
CN35 → KORD
2
avg 3h 46m · Hughes/Space & Comm. Heliport → Chicago O'Hare
KEWR → KSEA
2
avg 5h 48m · Newark Liberty → Seattle Tacoma
CN33 → KORD
1
avg 4h 3m · Airport Imperial Bldg Helistop → Chicago O'Hare

Aircraft types

Equipment used on this number

5
A21N AIRBUS Airbus A321 Neo
21
B38M BOEING Boeing 737 MAX 8
20
B39M BOEING Boeing 737 MAX 9
10
B738 BOEING Boeing 737-800
9
B739 BOEING Boeing 737-900
2

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
N27261BOEING Boeing 737 MAX 8
→
06/03/2026
1h 27m
No alerts
Replay Analysis
N47275BOEING Boeing 737 MAX 8
→
06/03/2026
2h 33m
No alerts
Replay Analysis
N47275BOEING Boeing 737 MAX 8
→
06/02/2026
4h 48m
No alerts
Replay Analysis
N47275BOEING Boeing 737 MAX 8
→
06/02/2026
2h 13m
No alerts
Replay Analysis
N17373BOEING Boeing 737 MAX 8
→
06/02/2026
3h 51m
No alerts
Replay Analysis
N17373BOEING Boeing 737 MAX 8
→
06/01/2026
1h 9m
No alerts
Replay Analysis
N17373BOEING Boeing 737 MAX 8
→
06/01/2026
5h 1m
No alerts
Replay Analysis
N27568BOEING Boeing 737 MAX 9
→
06/01/2026
4h 6m
No alerts
Replay Analysis
N27267BOEING Boeing 737 MAX 8
→
06/01/2026
3h 1m
No alerts
Replay Analysis
N27267BOEING Boeing 737 MAX 8
→
05/31/2026
2h 0m
No alerts
Replay Analysis
N27267BOEING Boeing 737 MAX 8
→
05/31/2026
5h 2m
No alerts
Replay Analysis
N17557BOEING Boeing 737 MAX 9
→
05/31/2026
4h 44m
No alerts
Replay Analysis
N17358BOEING Boeing 737 MAX 8
→
05/29/2026
1h 23m
No alerts
Replay Analysis
N33284BOEING Boeing 737-800
→
05/29/2026
4h 45m
No alerts
Replay Analysis
N33284BOEING Boeing 737-800
→
05/28/2026
10m
No alerts
Replay Analysis
N33284BOEING Boeing 737-800
→
05/28/2026
4h 55m
No alerts
Replay Analysis
N27568BOEING Boeing 737 MAX 9
→
05/28/2026
4h 32m
No alerts
Replay Analysis
N17272BOEING Boeing 737 MAX 8
→
05/28/2026
2h 40m
No alerts
Replay Analysis
N27334BOEING Boeing 737 MAX 8
→
05/26/2026
2h 12m
No alerts
Replay Analysis
N33284BOEING Boeing 737-800
→
05/26/2026
3h 40m
No alerts
Replay Analysis
N33284BOEING Boeing 737-800
→
05/25/2026
1h 7m
No alerts
Replay Analysis
N33284BOEING Boeing 737-800
→
05/25/2026
4h 48m
No alerts
Replay Analysis
N27419BOEING Boeing 737 MAX 9
→
05/25/2026
4h 20m
No alerts
Replay Analysis
N27503BOEING Boeing 737 MAX 9
→
05/24/2026
4h 39m
No alerts
Replay Analysis
N27503BOEING Boeing 737 MAX 9
→
05/23/2026
23m
No alerts
Replay Analysis
N27503BOEING Boeing 737 MAX 9
→
05/23/2026
5h 2m
No alerts
Replay Analysis
N17339BOEING Boeing 737 MAX 8
→
05/23/2026
3h 22m
No alerts
Replay Analysis
N17339BOEING Boeing 737 MAX 8
→
05/22/2026
46m
No alerts
Replay Analysis
N47434BOEING Boeing 737 MAX 9
→
05/22/2026
4h 20m
No alerts
Replay Analysis
N76519BOEING Boeing 737-800
→
05/22/2026
3h 17m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window