UAL566 is operated by UNITED AIRLINES INC between Sacramento International Airport (KSMF) and Denver International Airport (KDEN). The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 2h 14m. SkyMeter has observed 89 legs of this flight number via ADS-B.

✈
FLIGHTS
89
last 90 days
⏱
AVG DURATION
2h 14m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/18/2026
first → last seen
🗺
ROUTES / TYPES
6 / 5
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

5
KSMF → KDEN
78
avg 2h 22m · Sacramento → Denver
27CL → KDEN
2
avg 1h 51m · Sopwith Farm → Denver
34CA → KSFO
1
avg 1h 17m · Fiddyment Field → San Francisco
KSFO → KDEN
1
avg 2h 56m · San Francisco → Denver
KPBI → KIAH
1
avg 2h 24m · Palm Beach → George Bush Intercontinental Houston

Aircraft types

Equipment used on this number

5
B739 BOEING Boeing 737-900
188
B738 BOEING Boeing 737-800
25
A320 AIRBUS Airbus A320
12
B39M BOEING Boeing 737 MAX 9
7
A319 AIRBUS Airbus A319
4

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 UAL566

30
N37447BOEING Boeing 737 MAX 9
→
07/19/2026
1h 32m
No alerts
Replay Analysis
N37447BOEING Boeing 737 MAX 9
→
07/18/2026
41m
No alerts
Replay Analysis
N37447BOEING Boeing 737 MAX 9
→
07/18/2026
2h 17m
No alerts
Replay Analysis
N69838BOEING Boeing 737-900
→
07/18/2026
2h 21m
No alerts
Replay Analysis
N81449BOEING Boeing 737-900
→
07/17/2026
1h 33m
No alerts
Replay Analysis
N81449BOEING Boeing 737-900
→
07/16/2026
2h 18m
No alerts
Replay Analysis
N81449BOEING Boeing 737-900
→
07/16/2026
44m
No alerts
Replay Analysis
N61886BOEING Boeing 737-900
→
07/16/2026
1h 38m
No alerts
Replay Analysis
N61886BOEING Boeing 737-900
→
07/15/2026
46m
No alerts
Replay Analysis
N61886BOEING Boeing 737-900
→
07/15/2026
2h 25m
No alerts
Replay Analysis
N38424BOEING Boeing 737-900
→
07/15/2026
1h 26m
No alerts
Replay Analysis
N38424BOEING Boeing 737-900
→
07/14/2026
52m
No alerts
Replay Analysis
N38424BOEING Boeing 737-900
→
07/14/2026
2h 18m
No alerts
Replay Analysis
N27509BOEING Boeing 737 MAX 9
→
07/14/2026
2h 55m
No alerts
Replay Analysis
N34455BOEING Boeing 737-900
→
07/14/2026
1h 16m
No alerts
Replay Analysis
N34455BOEING Boeing 737-900
→
07/13/2026
18m
No alerts
Replay Analysis
N68807BOEING Boeing 737-900
→
07/13/2026
1h 23m
No alerts
Replay Analysis
N68807BOEING Boeing 737-900
→
07/12/2026
49m
No alerts
Replay Analysis
N68807BOEING Boeing 737-900
→
07/12/2026
2h 13m
No alerts
Replay Analysis
N73270BOEING Boeing 737-800
→
07/12/2026
1h 22m
No alerts
Replay Analysis
N73270BOEING Boeing 737-800
→
07/11/2026
49m
No alerts
Replay Analysis
N73270BOEING Boeing 737-800
→
07/11/2026
2h 12m
No alerts
Replay Analysis
N66841BOEING Boeing 737-900
→
07/11/2026
1h 28m
No alerts
Replay Analysis
N66841BOEING Boeing 737-900
→
07/10/2026
2h 19m
No alerts
Replay Analysis
N66841BOEING Boeing 737-900
→
07/10/2026
43m
No alerts
Replay Analysis
N62894BOEING Boeing 737-900
→
07/10/2026
1h 43m
No alerts
Replay Analysis
N62894BOEING Boeing 737-900
→
07/09/2026
2h 12m
No alerts
Replay Analysis
N62894BOEING Boeing 737-900
→
07/09/2026
29m
No alerts
Replay Analysis
N61886BOEING Boeing 737-900
→
07/09/2026
1h 25m
No alerts
Replay Analysis
N61886BOEING Boeing 737-900
→
07/08/2026
50m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window