UAL520 is operated by UNITED AIRLINES INC between San Francisco International Airport (KSFO) and Orlando International Airport (KMCO). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 2h 56m. SkyMeter has observed 161 legs of this flight number via ADS-B.

✈
FLIGHTS
161
last 90 days
⏱
AVG DURATION
2h 56m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/21/2026
first → last seen
🗺
ROUTES / TYPES
17 / 7
city pairs · airframes
⚠
INCIDENT RATE
1.2%
2 flagged

Routes flown

By count · last 90 days

10
KSFO → KMCO
46
avg 5h 16m · San Francisco → Orlando
KLAX → KSFO
36
avg 1h 23m · Los Angeles → San Francisco
KSAN → KSFO
24
avg 1h 36m · San Diego → San Francisco
KHAF → KMCO
7
avg 5h 28m · Half Moon Bay → Orlando
KBUR → KSFO
7
avg 1h 3m · Bob Hope → San Francisco
KSFO → KSLC
6
avg 2h 12m · San Francisco → Salt Lake City
KSLC → KDEN
4
avg 1h 37m · Salt Lake City → Denver
KSFO → KISM
3
avg 5h 8m · San Francisco → Kissimmee Gateway
KHAF → KISM
2
avg 5h 5m · Half Moon Bay → Kissimmee Gateway
KSFO → KORL
1
avg 5h 8m · San Francisco → Orlando Executive

Aircraft types

Equipment used on this number

7
B39M BOEING Boeing 737 MAX 9
179
B738 BOEING Boeing 737-800
48
A319 AIRBUS Airbus A319
20
B739 BOEING Boeing 737-900
19
B38M BOEING Boeing 737 MAX 8
16
A320 AIRBUS Airbus A320
7
A21N AIRBUS Airbus A321 Neo
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 UAL520

30
N466UAAIRBUS Airbus A320
→
08/21/2026
1h 32m
No alerts
Replay Analysis
N874UAAIRBUS Airbus A319
→
08/19/2026
2h 39m
No alerts
Replay Analysis
N76532BOEING Boeing 737-800
→
08/19/2026
59m
No alerts
Replay Analysis
N897UAAIRBUS Airbus A319
→
08/18/2026
1h 51m
No alerts
Replay Analysis
N897UAAIRBUS Airbus A319
→
08/18/2026
1h 2m
No alerts
Replay Analysis
N478UAAIRBUS Airbus A320
→
08/18/2026
1h 23m
No alerts
Replay Analysis
N431UAAIRBUS Airbus A320
→
08/17/2026
2h 5m
No alerts
Replay Analysis
N874UAAIRBUS Airbus A319
→
08/17/2026
55m
No alerts
Replay Analysis
N874UAAIRBUS Airbus A319
→
08/17/2026
9m
No alerts
Replay Analysis
N823UAAIRBUS Airbus A319
→
08/17/2026
1h 4m
No alerts
Replay Analysis
N823UAAIRBUS Airbus A319
→
08/16/2026
1h 53m
No alerts
Replay Analysis
N823UAAIRBUS Airbus A319
→
08/16/2026
48m
No alerts
Replay Analysis
N495UAAIRBUS Airbus A320
→
08/16/2026
1h 1m
No alerts
Replay Analysis
N877UAAIRBUS Airbus A319
→
08/16/2026
1h 3m
No alerts
Replay Analysis
N877UAAIRBUS Airbus A319
→
08/15/2026
1h 40m
No alerts
Replay Analysis
N877UAAIRBUS Airbus A319
→
08/15/2026
37m
No alerts
Replay Analysis
N814UAAIRBUS Airbus A319
→
08/15/2026
1h 14m
No alerts
Replay Analysis
N482UAAIRBUS Airbus A320
→
08/15/2026
1h 39m
No alerts
Replay Analysis
N889UAAIRBUS Airbus A319
→
08/14/2026
2h 13m
No alerts
Replay Analysis
N871UAAIRBUS Airbus A319
→
08/14/2026
56m
No alerts
Replay Analysis
N871UAAIRBUS Airbus A319
→
08/14/2026
6m
No alerts
Replay Analysis
N479UAAIRBUS Airbus A320
→
08/14/2026
1h 53m
No alerts
Replay Analysis
N479UAAIRBUS Airbus A320
→
08/14/2026
17m
No alerts
Replay Analysis
N894UAAIRBUS Airbus A319
→
08/14/2026
30m
No alerts
Replay Analysis
N894UAAIRBUS Airbus A319
→
08/13/2026
2h 30m
No alerts
Replay Analysis
N894UAAIRBUS Airbus A319
→
08/13/2026
3h 1m
No alerts
Replay Analysis
N37305BOEING Boeing 737 MAX 8
→
08/13/2026
1h 12m
No alerts
Replay Analysis
N804UAAIRBUS Airbus A319
→
08/11/2026
1h 56m
No alerts
Replay Analysis
N77538BOEING Boeing 737-800
→
08/11/2026
59m
No alerts
Replay Analysis
N77538BOEING Boeing 737-800
→
08/11/2026
10m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window