UAL664 is operated by UNITED AIRLINES INC between McCarran International Airport (KLAS) and Chicago O'Hare International Airport (KORD). The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 2h 13m. SkyMeter has observed 196 legs of this flight number via ADS-B.

✈
FLIGHTS
196
last 90 days
⏱
AVG DURATION
2h 13m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/20/2026
first → last seen
🗺
ROUTES / TYPES
15 / 7
city pairs · airframes
⚠
INCIDENT RATE
3.1%
6 flagged

Routes flown

By count · last 90 days

10
KLAS → KORD
81
avg 3h 33m · McCarran → Chicago O'Hare
KORD → KMCI
40
avg 1h 7m · Chicago O'Hare → Kansas City
KORD → KLGA
28
avg 1h 52m · Chicago O'Hare → La Guardia
KRFD → KORD
1
avg 24m · Chicago Rockford → Chicago O'Hare
KMSN → KORD
1
avg 45m · Dane County Regional Truax Field → Chicago O'Hare
KORD → KLOT
1
avg 1h 7m · Chicago O'Hare → Lewis University
KORD → KPHL
1
avg 2h 27m · Chicago O'Hare → Philadelphia
KPHL → KLGA
1
avg 32m · Philadelphia → La Guardia
7MO6 → KMCI
1
avg 5m · Mac's Field → Kansas City
KLAS → KRFD
1
avg 3h 42m · McCarran → Chicago Rockford

Aircraft types

Equipment used on this number

7
B739 BOEING Boeing 737-900
102
A320 AIRBUS Airbus A320
44
B738 BOEING Boeing 737-800
43
B39M BOEING Boeing 737 MAX 9
11
A319 AIRBUS Airbus A319
7
B737 BOEING Boeing 737-700
2
A21N AIRBUS Airbus A321 Neo
1

Safety profile

Flagged flights · last 90 days

Go-arounds
1
Unstable approach
5
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 UAL664

30
N67812BOEING Boeing 737-900
→
08/20/2026
42m
No alerts
Replay Analysis
N67812BOEING Boeing 737-900
→
08/20/2026
44m
No alerts
Replay Analysis
N67812BOEING Boeing 737-900
→
08/20/2026
44m
No alerts
Replay Analysis
N67812BOEING Boeing 737-900
→
08/20/2026
44m
No alerts
Replay Analysis
N67812BOEING Boeing 737-900
→
08/20/2026
44m
No alerts
Replay Analysis
N67812BOEING Boeing 737-900
→
08/20/2026
44m
No alerts
Replay Analysis
N69819BOEING Boeing 737-900
→
08/20/2026
3h 37m
No alerts
Replay Analysis
N13720BOEING Boeing 737-700
→
08/18/2026
1h 2m
No alerts
Replay Analysis
N38473BOEING Boeing 737-900
→
08/18/2026
3h 23m
No alerts
Replay Analysis
N13750BOEING Boeing 737-700
→
08/17/2026
1h 22m
No alerts
Replay Analysis
N37464BOEING Boeing 737-900
→
08/17/2026
3h 23m
No alerts
Replay Analysis
N68802BOEING Boeing 737-900
→
08/16/2026
1h 35m
No alerts
Replay Analysis
N53441BOEING Boeing 737-900
→
08/16/2026
3h 17m
No alerts
Replay Analysis
N17433BOEING Boeing 737 MAX 9
→
08/15/2026
1h 15m
No alerts
Replay Analysis
N38458BOEING Boeing 737-900
→
08/15/2026
3h 28m
No alerts
Replay Analysis
N27546BOEING Boeing 737 MAX 9
→
08/14/2026
1h 4m
No alerts
Replay Analysis
N27546BOEING Boeing 737 MAX 9
→
08/14/2026
12m
No alerts
Replay Analysis
N75425BOEING Boeing 737-900
→
08/14/2026
11m
No alerts
Replay Analysis
N75425BOEING Boeing 737-900
→
08/14/2026
3h 43m
No alerts
Replay Analysis
N37554BOEING Boeing 737 MAX 9
→
08/14/2026
5m
No alerts
Replay Analysis
N37554BOEING Boeing 737 MAX 9
→
08/13/2026
56m
No alerts
Replay Analysis
N37554BOEING Boeing 737 MAX 9
→
08/13/2026
9m
No alerts
Replay Analysis
N37419BOEING Boeing 737-900
→
08/13/2026
4h 4m
No alerts
Replay Analysis
N63899BOEING Boeing 737-900
→
08/11/2026
15m
No alerts
Replay Analysis
N63899BOEING Boeing 737-900
→
08/11/2026
3h 24m
No alerts
Replay Analysis
N451UAAIRBUS Airbus A320
→
08/10/2026
1h 7m
No alerts
Replay Analysis
N451UAAIRBUS Airbus A320
→
08/10/2026
17m
No alerts
Replay Analysis
N62884BOEING Boeing 737-900
→
08/10/2026
3h 33m
No alerts
Replay Analysis
N433UAAIRBUS Airbus A320
→
08/09/2026
1h 10m
No alerts
Replay Analysis
N69838BOEING Boeing 737-900
→
08/09/2026
16m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window