UAL660 is operated by UNITED AIRLINES INC between Chicago O'Hare International Airport (KORD) and San Diego International Airport (KSAN). The flight is most often flown by a AIRBUS Airbus A321 Neo. Typical block time is 2h 44m. SkyMeter has observed 179 legs of this flight number via ADS-B.

✈
FLIGHTS
179
last 90 days
⏱
AVG DURATION
2h 44m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
5 / 6
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

3
KORD → KSAN
79
avg 3h 59m · Chicago O'Hare → San Diego
KPHL → KORD
77
avg 1h 57m · Philadelphia → Chicago O'Hare
KSAV → KORD
1
avg 2h 31m · Savannah Hilton Head → Chicago O'Hare

Aircraft types

Equipment used on this number

6
A21N AIRBUS Airbus A321 Neo
87
B38M BOEING Boeing 737 MAX 8
70
B738 BOEING Boeing 737-800
9
B739 BOEING Boeing 737-900
6
A319 AIRBUS Airbus A319
4
ST75 ST75
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 UAL660

30
N94556AIRBUS Airbus A321 Neo
→
07/19/2026
3h 34m
No alerts
Replay Analysis
N37367BOEING Boeing 737 MAX 8
→
07/19/2026
2h 2m
No alerts
Replay Analysis
N34282BOEING Boeing 737-800
→
07/18/2026
1h 38m
No alerts
Replay Analysis
N14540AIRBUS Airbus A321 Neo
→
07/17/2026
3h 47m
No alerts
Replay Analysis
N17361BOEING Boeing 737 MAX 8
→
07/17/2026
1h 51m
No alerts
Replay Analysis
N44550AIRBUS Airbus A321 Neo
→
07/16/2026
3h 30m
No alerts
Replay Analysis
N47360BOEING Boeing 737 MAX 8
→
07/16/2026
2h 5m
No alerts
Replay Analysis
N14557AIRBUS Airbus A321 Neo
→
07/15/2026
3h 29m
No alerts
Replay Analysis
N17315BOEING Boeing 737 MAX 8
→
07/15/2026
1h 45m
No alerts
Replay Analysis
N54561ST75
→
07/14/2026
3h 30m
No alerts
Replay Analysis
N17336BOEING Boeing 737 MAX 8
→
07/14/2026
1h 37m
No alerts
Replay Analysis
N14530AIRBUS Airbus A321 Neo
→
07/13/2026
3h 57m
No alerts
Replay Analysis
N17337BOEING Boeing 737 MAX 8
→
07/13/2026
1h 43m
No alerts
Replay Analysis
N24542AIRBUS Airbus A321 Neo
→
07/12/2026
3h 42m
No alerts
Replay Analysis
N37371BOEING Boeing 737 MAX 8
→
07/12/2026
10m
No alerts
Replay Analysis
N37371BOEING Boeing 737 MAX 8
→
07/12/2026
1h 48m
No alerts
Replay Analysis
N24505AIRBUS Airbus A321 Neo
→
07/11/2026
3h 37m
No alerts
Replay Analysis
N17336BOEING Boeing 737 MAX 8
→
07/11/2026
2h 2m
No alerts
Replay Analysis
N14539AIRBUS Airbus A321 Neo
→
07/10/2026
3h 49m
No alerts
Replay Analysis
N37367BOEING Boeing 737 MAX 8
→
07/10/2026
5m
No alerts
Replay Analysis
N37367BOEING Boeing 737 MAX 8
→
07/10/2026
2h 7m
No alerts
Replay Analysis
N14553AIRBUS Airbus A321 Neo
→
07/09/2026
4h 16m
No alerts
Replay Analysis
N37367BOEING Boeing 737 MAX 8
→
07/09/2026
9m
No alerts
Replay Analysis
N37367BOEING Boeing 737 MAX 8
→
07/09/2026
1h 42m
No alerts
Replay Analysis
N14539AIRBUS Airbus A321 Neo
→
07/08/2026
3h 44m
No alerts
Replay Analysis
N17346BOEING Boeing 737 MAX 8
→
07/08/2026
1h 42m
No alerts
Replay Analysis
N54525AIRBUS Airbus A321 Neo
→
07/07/2026
3h 40m
No alerts
Replay Analysis
N37354BOEING Boeing 737 MAX 8
→
07/07/2026
1h 56m
No alerts
Replay Analysis
N14528AIRBUS Airbus A321 Neo
→
07/06/2026
3h 51m
No alerts
Replay Analysis
N14540AIRBUS Airbus A321 Neo
→
07/05/2026
3h 52m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window