UAL552J

UNITED AIRLINES INC · SFO → ONT

UAL552J is operated by UNITED AIRLINES INC between San Francisco International Airport (KSFO) and Ontario International Airport (KONT). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 0h 56m. SkyMeter has observed 3 legs of this flight number via ADS-B.

✈
FLIGHTS
3
last 90 days
⏱
AVG DURATION
56m
tracked time
📅
SERVICE PERIOD
04/21/2026 → 05/18/2026
first → last seen
🗺
ROUTES / TYPES
2 / 1
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

1
KSFO → KONT
2
avg 1h 10m · San Francisco → Ontario

Aircraft types

Equipment used on this number

1
B39M BOEING Boeing 737 MAX 9
3

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 3 operations of UAL552J

3
N17566BOEING Boeing 737 MAX 9
→
05/18/2026
29m
No alerts
Replay Analysis
N17566BOEING Boeing 737 MAX 9
→
05/18/2026
1h 13m
No alerts
Replay Analysis
N37508BOEING Boeing 737 MAX 9
→
04/21/2026
1h 6m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window