UAL648 is operated by UNITED AIRLINES INC between Newark Liberty International Airport (KEWR) and San Francisco International Airport (KSFO). The flight is most often flown by a BOEING Boeing 757-200. Typical block time is 4h 22m. SkyMeter has observed 158 legs of this flight number via ADS-B.

✈
FLIGHTS
158
last 90 days
⏱
AVG DURATION
4h 22m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/11/2026
first → last seen
🗺
ROUTES / TYPES
15 / 9
city pairs · airframes
⚠
INCIDENT RATE
2.5%
4 flagged

Routes flown

By count · last 90 days

10
KEWR → KSFO
74
avg 5h 56m · Newark Liberty → San Francisco
KSTL → KEWR
31
avg 2h 7m · St Louis Lambert → Newark Liberty
KSFO → KMSP
20
avg 3h 34m · San Francisco → Minneapolis-St Paul International/Wold-Chamberlain
KSFO → KORD
4
avg 3h 55m · San Francisco → Chicago O'Hare
KOAK → KMSP
2
avg 3h 39m · Metropolitan Oakland → Minneapolis-St Paul International/Wold-Chamberlain
KEWR → KOAK
1
avg 5h 52m · Newark Liberty → Metropolitan Oakland
KORD → KEWR
1
avg 1h 42m · Chicago O'Hare → Newark Liberty
KEWR → KDEN
1
avg 3h 45m · Newark Liberty → Denver
KDEN → KSFO
1
avg 3h 0m · Denver → San Francisco
KSTL → KORD
1
avg 1h 8m · St Louis Lambert → Chicago O'Hare

Aircraft types

Equipment used on this number

9
B752 BOEING Boeing 757-200
85
B38M BOEING Boeing 737 MAX 8
41
A319 AIRBUS Airbus A319
36
B753 BOEING Boeing 757-300
13
A320 AIRBUS Airbus A320
5
B39M BOEING Boeing 737 MAX 9
5
A21N AIRBUS Airbus A321 Neo
2
B763 BOEING Boeing 767-300
1
B739 BOEING Boeing 737-900
1

Safety profile

Flagged flights · last 90 days

Go-arounds
1
Unstable approach
3
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 UAL648

30
N58101BOEING Boeing 757-200
→
8/11/2026
6h 39m
No alerts
Replay Analysis
N14115BOEING Boeing 757-200
→
8/10/2026
6h 45m
No alerts
Replay Analysis
N17349BOEING Boeing 737 MAX 8
→
8/10/2026
2h 10m
No alerts
Replay Analysis
N802UAAIRBUS Airbus A319
→
8/10/2026
3h 25m
No alerts
Replay Analysis
N34131BOEING Boeing 757-200
→
8/9/2026
2h 43m
No alerts
Replay Analysis
N17333BOEING Boeing 737 MAX 8
→
8/9/2026
9h 42m
No alerts
Replay Analysis
N18112BOEING Boeing 757-200
→
8/8/2026
5h 57m
No alerts
Replay Analysis
N17336BOEING Boeing 737 MAX 8
→
8/8/2026
2h 0m
No alerts
Replay Analysis
N807UAAIRBUS Airbus A319
→
8/7/2026
3h 28m
No alerts
Replay Analysis
N47330BOEING Boeing 737 MAX 8
→
8/6/2026
2h 20m
No alerts
Replay Analysis
N12116BOEING Boeing 757-200
→
8/5/2026
5h 55m
No alerts
Replay Analysis
N27255BOEING Boeing 737 MAX 8
→
8/5/2026
2h 22m
No alerts
Replay Analysis
N18112BOEING Boeing 757-200
→
8/4/2026
5h 24m
No alerts
Replay Analysis
N17364BOEING Boeing 737 MAX 8
→
8/4/2026
2h 18m
No alerts
Replay Analysis
N821UAAIRBUS Airbus A319
→
8/4/2026
2h 57m
No alerts
Replay Analysis
N821UAAIRBUS Airbus A319
→
8/3/2026
23m
No alerts
Replay Analysis
N821UAAIRBUS Airbus A319
→
8/3/2026
3h 21m
No alerts
Replay Analysis
N41135BOEING Boeing 757-200
→
8/3/2026
5h 35m
No alerts
Replay Analysis
N825UAAIRBUS Airbus A319
→
8/3/2026
2h 33m
No alerts
Replay Analysis
N825UAAIRBUS Airbus A319
→
8/2/2026
54m
No alerts
Replay Analysis
N825UAAIRBUS Airbus A319
→
8/2/2026
3h 27m
No alerts
Replay Analysis
N17104BOEING Boeing 757-200
→
8/2/2026
6h 2m
No alerts
Replay Analysis
N27256BOEING Boeing 737 MAX 8
→
8/2/2026
2h 6m
No alerts
Replay Analysis
N14564AIRBUS Airbus A321 Neo
→
8/1/2026
46m
No alerts
Replay Analysis
N37348BOEING Boeing 737 MAX 8
→
8/1/2026
2h 20m
△ Low approach-stability score
Replay Analysis
N57111BOEING Boeing 757-200
→
7/31/2026
6h 17m
No alerts
Replay Analysis
N47298BOEING Boeing 737 MAX 8
→
7/31/2026
2h 25m
No alerts
Replay Analysis
N889UAAIRBUS Airbus A319
→
7/31/2026
3h 20m
No alerts
Replay Analysis
N889UAAIRBUS Airbus A319
→
7/30/2026
17m
No alerts
Replay Analysis
N889UAAIRBUS Airbus A319
→
7/30/2026
3h 38m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window