UAL1506

UNITED AIRLINES INC · DEN → SFO

UAL1506 is operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and San Francisco International Airport (KSFO). The flight is most often flown by a AIRBUS Airbus A321 Neo. Typical block time is 2h 16m. SkyMeter has observed 211 legs of this flight number via ADS-B.

✈
FLIGHTS
211
last 90 days
⏱
AVG DURATION
2h 16m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/12/2026
first → last seen
🗺
ROUTES / TYPES
11 / 6
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

7
KDEN → KSFO
76
avg 2h 38m · Denver → San Francisco
KSDF → KDEN
75
avg 2h 32m · Louisville Muhammad Ali → Denver
KSFO → KLAX
38
avg 1h 26m · San Francisco → Los Angeles
KHAF → KLAX
3
avg 1h 25m · Half Moon Bay → Los Angeles
KSFO → KHHR
1
avg 1h 26m · San Francisco → Jack Northrop Field Hawthorne
KDEN → KOAK
1
avg 2h 18m · Denver → Metropolitan Oakland
KSDF → KFTG
1
avg 2h 30m · Louisville Muhammad Ali → Colorado Air and Space Port

Aircraft types

Equipment used on this number

6
A21N AIRBUS Airbus A321 Neo
85
A319 AIRBUS Airbus A319
68
B39M BOEING Boeing 737 MAX 9
42
A320 AIRBUS Airbus A320
10
B38M BOEING Boeing 737 MAX 8
2
B739 BOEING Boeing 737-900
2

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 UAL1506

30
N37530BOEING Boeing 737 MAX 9
→
8/12/2026
36m
No alerts
Replay Analysis
N14529AIRBUS Airbus A321 Neo
→
8/12/2026
2h 17m
No alerts
Replay Analysis
N37445BOEING Boeing 737 MAX 9
→
8/11/2026
2h 3m
No alerts
Replay Analysis
N24510AIRBUS Airbus A321 Neo
→
8/11/2026
2h 19m
No alerts
Replay Analysis
N17593BOEING Boeing 737 MAX 9
→
8/10/2026
1h 28m
No alerts
Replay Analysis
N14520AIRBUS Airbus A321 Neo
→
8/10/2026
2h 30m
No alerts
Replay Analysis
N898UAAIRBUS Airbus A319
→
8/10/2026
2h 30m
No alerts
Replay Analysis
N57416BOEING Boeing 737 MAX 9
→
8/9/2026
1h 26m
No alerts
Replay Analysis
N67501BOEING Boeing 737 MAX 9
→
8/8/2026
1h 21m
No alerts
Replay Analysis
N14512AIRBUS Airbus A321 Neo
→
8/8/2026
2h 43m
No alerts
Replay Analysis
N842UAAIRBUS Airbus A319
→
8/8/2026
2h 30m
No alerts
Replay Analysis
N77578BOEING Boeing 737 MAX 9
→
8/7/2026
1h 25m
No alerts
Replay Analysis
N14531AIRBUS Airbus A321 Neo
→
8/7/2026
2h 48m
No alerts
Replay Analysis
N823UAAIRBUS Airbus A319
→
8/7/2026
2h 28m
No alerts
Replay Analysis
N37555BOEING Boeing 737 MAX 9
→
8/6/2026
1h 32m
No alerts
Replay Analysis
N14506AIRBUS Airbus A321 Neo
→
8/6/2026
2h 25m
No alerts
Replay Analysis
N840UAAIRBUS Airbus A319
→
8/6/2026
2h 43m
No alerts
Replay Analysis
N14512AIRBUS Airbus A321 Neo
→
8/5/2026
2h 41m
No alerts
Replay Analysis
N498UAAIRBUS Airbus A320
→
8/5/2026
2h 34m
No alerts
Replay Analysis
N14560AIRBUS Airbus A321 Neo
→
8/4/2026
2h 22m
No alerts
Replay Analysis
N875UAAIRBUS Airbus A319
→
8/4/2026
2h 34m
No alerts
Replay Analysis
N24505AIRBUS Airbus A321 Neo
→
8/3/2026
3h 0m
No alerts
Replay Analysis
N895UAAIRBUS Airbus A319
→
8/3/2026
2h 26m
No alerts
Replay Analysis
N24514AIRBUS Airbus A321 Neo
→
8/2/2026
2h 33m
No alerts
Replay Analysis
N852UAAIRBUS Airbus A319
→
8/2/2026
2h 25m
No alerts
Replay Analysis
N838UAAIRBUS Airbus A319
→
8/1/2026
2h 30m
No alerts
Replay Analysis
N68822BOEING Boeing 737-900
→
7/31/2026
1h 43m
No alerts
Replay Analysis
N14539AIRBUS Airbus A321 Neo
→
7/31/2026
2h 39m
No alerts
Replay Analysis
N897UAAIRBUS Airbus A319
→
7/31/2026
2h 35m
No alerts
Replay Analysis
N17550BOEING Boeing 737 MAX 9
→
7/30/2026
1h 26m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window