UAL638 is operated by BANK OF UTAH TRUSTEE between San Francisco International Airport (KSFO) and Daniel K Inouye International Airport (PHNL). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 1h 8m. SkyMeter has observed 76 legs of this flight number via ADS-B.

✈
FLIGHTS
76
last 90 days
⏱
AVG DURATION
1h 8m
tracked time
📅
SERVICE PERIOD
04/07/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
3 / 3
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

1
KSFO → PHNL
9
avg 5h 13m · San Francisco → Daniel K Inouye

Aircraft types

Equipment used on this number

3
B39M BOEING Boeing 737 MAX 9
58
B753 BOEING Boeing 757-300
29
B739 BOEING Boeing 737-900
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 UAL638

30
N57852BOEING Boeing 757-300
→
06/03/2026
26m
No alerts
Replay Analysis
N57852BOEING Boeing 757-300
→
06/03/2026
5h 19m
No alerts
Replay Analysis
N57852BOEING Boeing 757-300
→
06/03/2026
57m
No alerts
Replay Analysis
N57855BOEING Boeing 757-300
→
06/02/2026
29m
No alerts
Replay Analysis
N57855BOEING Boeing 757-300
→
06/02/2026
42m
No alerts
Replay Analysis
N57863BOEING Boeing 757-300
→
06/01/2026
20m
No alerts
Replay Analysis
N57863BOEING Boeing 757-300
→
06/01/2026
1h 8m
No alerts
Replay Analysis
N57863BOEING Boeing 757-300
→
05/31/2026
5h 22m
No alerts
Replay Analysis
N57852BOEING Boeing 757-300
→
05/29/2026
22m
No alerts
Replay Analysis
N57852BOEING Boeing 757-300
→
05/29/2026
55m
No alerts
Replay Analysis
N77867BOEING Boeing 757-300
→
05/28/2026
26m
No alerts
Replay Analysis
N77867BOEING Boeing 757-300
→
05/28/2026
34m
No alerts
Replay Analysis
N77867BOEING Boeing 757-300
→
05/28/2026
4h 56m
No alerts
Replay Analysis
N75851BOEING Boeing 757-300
→
05/27/2026
28m
No alerts
Replay Analysis
N75851BOEING Boeing 757-300
→
05/27/2026
44m
No alerts
Replay Analysis
N75851BOEING Boeing 757-300
→
05/27/2026
5h 1m
No alerts
Replay Analysis
N75858BOEING Boeing 757-300
→
05/26/2026
22m
No alerts
Replay Analysis
N75858BOEING Boeing 757-300
→
05/26/2026
44m
No alerts
Replay Analysis
N75858BOEING Boeing 757-300
→
05/26/2026
4h 44m
No alerts
Replay Analysis
N75861BOEING Boeing 757-300
→
05/25/2026
21m
No alerts
Replay Analysis
N75861BOEING Boeing 757-300
→
05/25/2026
46m
No alerts
Replay Analysis
N75861BOEING Boeing 757-300
→
05/25/2026
4h 58m
No alerts
Replay Analysis
N57863BOEING Boeing 757-300
→
05/24/2026
22m
No alerts
Replay Analysis
N57863BOEING Boeing 757-300
→
05/24/2026
55m
No alerts
Replay Analysis
N57863BOEING Boeing 757-300
→
05/24/2026
5h 8m
No alerts
Replay Analysis
N77871BOEING Boeing 757-300
→
05/23/2026
22m
No alerts
Replay Analysis
N77871BOEING Boeing 757-300
→
05/23/2026
47m
No alerts
Replay Analysis
N78866BOEING Boeing 757-300
→
05/22/2026
25m
No alerts
Replay Analysis
N78866BOEING Boeing 757-300
→
05/22/2026
49m
No alerts
Replay Analysis
N37449BOEING Boeing 737 MAX 9
→
05/21/2026
21m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window