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 44m. SkyMeter has observed 164 legs of this flight number via ADS-B.

✈
FLIGHTS
164
last 90 days
⏱
AVG DURATION
2h 44m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/30/2026
first → last seen
🗺
ROUTES / TYPES
19 / 7
city pairs · airframes
⚠
INCIDENT RATE
1.2%
2 flagged

Routes flown

By count · last 90 days

10
KSFO → KMCO
41
avg 5h 18m · San Francisco → Orlando
KLAX → KSFO
36
avg 1h 23m · Los Angeles → San Francisco
KSAN → KSFO
15
avg 1h 35m · San Diego → San Francisco
KSFO → KSLC
13
avg 2h 8m · San Francisco → Salt Lake City
KBUR → KSFO
11
avg 1h 4m · Bob Hope → San Francisco
KHAF → KMCO
6
avg 5h 28m · Half Moon Bay → Orlando
KSLC → KDEN
6
avg 1h 40m · 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
161
B738 BOEING Boeing 737-800
42
A319 AIRBUS Airbus A319
32
B38M BOEING Boeing 737 MAX 8
17
B739 BOEING Boeing 737-900
15
A320 AIRBUS Airbus A320
11
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
N850UAAIRBUS Airbus A319
→
08/30/2026
6m
No alerts
Replay Analysis
N850UAAIRBUS Airbus A319
→
08/30/2026
2h 15m
No alerts
Replay Analysis
N830UAAIRBUS Airbus A319
→
08/29/2026
2h 6m
No alerts
Replay Analysis
N454UAAIRBUS Airbus A320
→
08/29/2026
1h 37m
No alerts
Replay Analysis
N806UAAIRBUS Airbus A319
→
08/28/2026
2h 13m
No alerts
Replay Analysis
N480UAAIRBUS Airbus A320
→
08/28/2026
1h 24m
No alerts
Replay Analysis
N432UAAIRBUS Airbus A320
→
08/27/2026
1h 50m
No alerts
Replay Analysis
N873UAAIRBUS Airbus A319
→
08/26/2026
2h 28m
No alerts
Replay Analysis
N78506BOEING Boeing 737-800
→
08/26/2026
59m
No alerts
Replay Analysis
N840UAAIRBUS Airbus A319
→
08/25/2026
1h 49m
No alerts
Replay Analysis
N840UAAIRBUS Airbus A319
→
08/25/2026
1h 0m
No alerts
Replay Analysis
N829UAAIRBUS Airbus A319
→
08/25/2026
19m
No alerts
Replay Analysis
N896UAAIRBUS Airbus A319
→
08/23/2026
1h 40m
No alerts
Replay Analysis
N17296BOEING Boeing 737 MAX 8
→
08/23/2026
1h 23m
No alerts
Replay Analysis
N17296BOEING Boeing 737 MAX 8
→
08/23/2026
8m
No alerts
Replay Analysis
N889UAAIRBUS Airbus A319
→
08/22/2026
1h 55m
No alerts
Replay Analysis
N829UAAIRBUS Airbus A319
→
08/22/2026
58m
No alerts
Replay Analysis
N469UAAIRBUS Airbus A320
→
08/22/2026
1h 54m
No alerts
Replay Analysis
N852UAAIRBUS Airbus A319
→
08/22/2026
14m
No alerts
Replay Analysis
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
48m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window