UAL623 is operated by UNITED AIRLINES INC between La Guardia Airport (KLGA) and Chicago O'Hare International Airport (KORD). The flight is most often flown by a BOEING Boeing 737-800. Typical block time is 2h 23m. SkyMeter has observed 184 legs of this flight number via ADS-B.

✈
FLIGHTS
184
last 90 days
⏱
AVG DURATION
2h 23m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/12/2026
first → last seen
🗺
ROUTES / TYPES
9 / 7
city pairs · airframes
⚠
INCIDENT RATE
0.5%
1 flagged

Routes flown

By count · last 90 days

5
KLGA → KORD
80
avg 2h 17m · La Guardia → Chicago O'Hare
KORD → KBZN
64
avg 2h 51m · Chicago O'Hare → Gallatin Field
KORD → KABQ
4
avg 2h 48m · Chicago O'Hare → Albuquerque International Sunport
KLGA → KTEB
1
avg 2h 14m · La Guardia → Teterboro
KLGA → KGRR
1
avg 2h 49m · La Guardia → Gerald R. Ford

Aircraft types

Equipment used on this number

7
B738 BOEING Boeing 737-800
119
A320 AIRBUS Airbus A320
41
A319 AIRBUS Airbus A319
15
B38M BOEING Boeing 737 MAX 8
4
B737 BOEING Boeing 737-700
3
B39M BOEING Boeing 737 MAX 9
3
B739 BOEING Boeing 737-900
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
1
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 UAL623

30
N26208BOEING Boeing 737-800
→
8/12/2026
1h 32m
No alerts
Replay Analysis
N16234BOEING Boeing 737-800
→
8/12/2026
2h 3m
No alerts
Replay Analysis
N76522BOEING Boeing 737-800
→
8/11/2026
2h 47m
No alerts
Replay Analysis
N76522BOEING Boeing 737-800
→
8/11/2026
3h 19m
No alerts
Replay Analysis
N441UAAIRBUS Airbus A320
→
8/10/2026
2h 49m
△ Low approach-stability score
Replay Analysis
N35271BOEING Boeing 737-800
→
8/10/2026
2h 47m
No alerts
Replay Analysis
N451UAAIRBUS Airbus A320
→
8/9/2026
3h 6m
No alerts
Replay Analysis
N37252BOEING Boeing 737-800
→
8/9/2026
8m
No alerts
Replay Analysis
N37252BOEING Boeing 737-800
→
8/9/2026
15m
No alerts
Replay Analysis
N37252BOEING Boeing 737-800
→
8/9/2026
2h 3m
No alerts
Replay Analysis
N811UAAIRBUS Airbus A319
→
8/8/2026
2h 40m
No alerts
Replay Analysis
N35204BOEING Boeing 737-800
→
8/8/2026
2h 7m
No alerts
Replay Analysis
N490UAAIRBUS Airbus A320
→
8/7/2026
2h 50m
No alerts
Replay Analysis
N490UAAIRBUS Airbus A320
→
8/7/2026
8m
No alerts
Replay Analysis
N37255BOEING Boeing 737-800
→
8/7/2026
2h 11m
No alerts
Replay Analysis
N444UAAIRBUS Airbus A320
→
8/6/2026
2h 40m
No alerts
Replay Analysis
N444UAAIRBUS Airbus A320
→
8/6/2026
8m
No alerts
Replay Analysis
N37290BOEING Boeing 737-800
→
8/6/2026
2h 9m
No alerts
Replay Analysis
N481UAAIRBUS Airbus A320
→
8/5/2026
3h 2m
No alerts
Replay Analysis
N76532BOEING Boeing 737-800
→
8/5/2026
8m
No alerts
Replay Analysis
N76532BOEING Boeing 737-800
→
8/5/2026
2h 28m
No alerts
Replay Analysis
N455UAAIRBUS Airbus A320
→
8/4/2026
3h 2m
No alerts
Replay Analysis
N76508BOEING Boeing 737-800
→
8/4/2026
2h 30m
No alerts
Replay Analysis
N4901UAIRBUS Airbus A320
→
8/3/2026
2h 56m
No alerts
Replay Analysis
N37281BOEING Boeing 737-800
→
8/3/2026
2h 37m
No alerts
Replay Analysis
N449UAAIRBUS Airbus A320
→
8/2/2026
2h 42m
No alerts
Replay Analysis
N449UAAIRBUS Airbus A320
→
8/2/2026
11m
No alerts
Replay Analysis
N37298BOEING Boeing 737-800
→
8/2/2026
1h 58m
No alerts
Replay Analysis
N24202BOEING Boeing 737-800
→
8/1/2026
2h 18m
No alerts
Replay Analysis
N492UAAIRBUS Airbus A320
→
7/31/2026
3h 2m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window