UAL2309

UNITED AIRLINES INC · DEN → SAN

UAL2309 is operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and San Diego International Airport (KSAN). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 1h 53m. SkyMeter has observed 164 legs of this flight number via ADS-B.

✈
FLIGHTS
164
last 90 days
⏱
AVG DURATION
1h 53m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/29/2026
first → last seen
🗺
ROUTES / TYPES
8 / 4
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

4
KDEN → KSAN
76
avg 2h 12m · Denver → San Diego
KSAN → KSFO
63
avg 1h 37m · San Diego → San Francisco
KNZY → KSFO
1
avg 1h 16m · North Island Naval Air Station-Halsey Field → San Francisco
US-2553 → KSFO
1
avg 1h 36m · Speer → San Francisco

Aircraft types

Equipment used on this number

4
B39M BOEING Boeing 737 MAX 9
85
B738 BOEING Boeing 737-800
71
B38M BOEING Boeing 737 MAX 8
5
B739 BOEING Boeing 737-900
3

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 UAL2309

30
N27253BOEING Boeing 737 MAX 8
→
08/29/2026
1h 23m
No alerts
Replay Analysis
N37531BOEING Boeing 737 MAX 9
→
08/29/2026
2h 12m
No alerts
Replay Analysis
N24212BOEING Boeing 737-800
→
08/26/2026
1h 30m
No alerts
Replay Analysis
N37536BOEING Boeing 737 MAX 9
→
08/26/2026
2h 9m
No alerts
Replay Analysis
N14240BOEING Boeing 737-800
→
08/25/2026
1h 39m
No alerts
Replay Analysis
N17436BOEING Boeing 737 MAX 9
→
08/25/2026
2h 10m
No alerts
Replay Analysis
N17583BOEING Boeing 737 MAX 9
→
08/24/2026
2h 34m
No alerts
Replay Analysis
N37534BOEING Boeing 737 MAX 9
→
08/23/2026
1h 18m
No alerts
Replay Analysis
N37535BOEING Boeing 737 MAX 9
→
08/23/2026
2h 53m
No alerts
Replay Analysis
N17312BOEING Boeing 737 MAX 8
→
08/22/2026
1h 34m
No alerts
Replay Analysis
N37527BOEING Boeing 737 MAX 9
→
08/22/2026
2h 27m
No alerts
Replay Analysis
N77261BOEING Boeing 737-800
→
08/19/2026
1h 33m
No alerts
Replay Analysis
N47512BOEING Boeing 737 MAX 9
→
08/19/2026
2h 8m
No alerts
Replay Analysis
N17229BOEING Boeing 737-800
→
08/18/2026
1h 35m
No alerts
Replay Analysis
N37535BOEING Boeing 737 MAX 9
→
08/18/2026
2h 9m
No alerts
Replay Analysis
N37263BOEING Boeing 737-800
→
08/17/2026
1h 43m
No alerts
Replay Analysis
N47569BOEING Boeing 737 MAX 9
→
08/17/2026
2h 4m
No alerts
Replay Analysis
N33289BOEING Boeing 737-800
→
08/16/2026
1h 37m
No alerts
Replay Analysis
N17428BOEING Boeing 737 MAX 9
→
08/16/2026
2h 34m
No alerts
Replay Analysis
N17314BOEING Boeing 737 MAX 8
→
08/15/2026
1h 33m
No alerts
Replay Analysis
N37535BOEING Boeing 737 MAX 9
→
08/15/2026
2h 14m
No alerts
Replay Analysis
N13227BOEING Boeing 737-800
→
08/14/2026
1h 50m
No alerts
Replay Analysis
N37555BOEING Boeing 737 MAX 9
→
08/14/2026
2h 6m
No alerts
Replay Analysis
N35204BOEING Boeing 737-800
→
08/13/2026
1h 42m
No alerts
Replay Analysis
N77578BOEING Boeing 737 MAX 9
→
08/13/2026
2h 22m
No alerts
Replay Analysis
N76504BOEING Boeing 737-800
→
08/12/2026
1h 6m
No alerts
Replay Analysis
N77537BOEING Boeing 737-800
→
08/11/2026
1h 53m
No alerts
Replay Analysis
N77552BOEING Boeing 737 MAX 9
→
08/11/2026
2h 2m
No alerts
Replay Analysis
N33266BOEING Boeing 737-800
→
08/10/2026
1h 35m
No alerts
Replay Analysis
N38467BOEING Boeing 737-900
→
08/10/2026
2h 15m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window