Flight Status & Tracker

UAL2309

UNITED AIRLINES INC · DEN → SAN · Last tracked Sep 27, 2026

UAL2309 is a flight number operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and San Diego International Airport (KSAN). SkyMeter last tracked UAL2309 on September 27, 2026. The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 1h 52m. SkyMeter has observed 172 legs of this flight number via ADS-B.

SkyMeter tracks historical flight activity from ADS-B data — this is not a live gate-to-gate status feed.

✈
FLIGHTS
172
last 90 days
⏱
AVG DURATION
1h 52m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/27/2026
first → last seen
🗺
ROUTES / TYPES
7 / 4
city pairs · airframes
⚠
INCIDENT RATE
0.6%
1 flagged

Routes flown

By count · last 90 days

4
KDEN → KSAN
79
avg 2h 12m · Denver → San Diego
KSAN → KSFO
66
avg 1h 36m · San Diego → San Francisco
KNZY → KSFO
2
avg 1h 27m · 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
88
B738 BOEING Boeing 737-800
76
B38M BOEING Boeing 737 MAX 8
4
B739 BOEING Boeing 737-900
4

Safety profile

Flagged flights · last 90 days

Go-arounds
1
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
N17245BOEING Boeing 737-800
→
9/27/2026
1h 51m
No alerts
Replay Analysis
N17229BOEING Boeing 737-800
→
9/27/2026
2h 17m
No alerts
Replay Analysis
N37551BOEING Boeing 737 MAX 9
→
9/26/2026
2h 19m
No alerts
Replay Analysis
N45440BOEING Boeing 737-900
→
9/25/2026
2h 6m
No alerts
Replay Analysis
N47462BOEING Boeing 737 MAX 9
→
9/24/2026
1h 35m
No alerts
Replay Analysis
N27503BOEING Boeing 737 MAX 9
→
9/24/2026
2h 12m
No alerts
Replay Analysis
N17233BOEING Boeing 737-800
→
9/23/2026
1h 30m
No alerts
Replay Analysis
N47569BOEING Boeing 737 MAX 9
→
9/23/2026
2h 14m
No alerts
Replay Analysis
N73275BOEING Boeing 737-800
→
9/22/2026
1h 55m
No alerts
Replay Analysis
N17454BOEING Boeing 737 MAX 9
→
9/22/2026
2h 14m
No alerts
Replay Analysis
N76254BOEING Boeing 737-800
→
9/21/2026
1h 50m
No alerts
Replay Analysis
N27515BOEING Boeing 737 MAX 9
→
9/21/2026
2h 10m
No alerts
Replay Analysis
N76265BOEING Boeing 737-800
→
9/20/2026
1h 30m
No alerts
Replay Analysis
N27439BOEING Boeing 737 MAX 9
→
9/20/2026
2h 19m
No alerts
Replay Analysis
N34222BOEING Boeing 737-800
→
9/19/2026
1h 26m
No alerts
Replay Analysis
N27586BOEING Boeing 737 MAX 9
→
9/19/2026
2h 17m
No alerts
Replay Analysis
N76265BOEING Boeing 737-800
→
9/18/2026
2h 29m
No alerts
Replay Analysis
N37415BOEING Boeing 737 MAX 9
→
9/18/2026
2h 15m
No alerts
Replay Analysis
N13227BOEING Boeing 737-800
→
9/17/2026
2h 8m
↻ Go-around
Replay Analysis
N17477BOEING Boeing 737 MAX 9
→
9/17/2026
2h 18m
No alerts
Replay Analysis
N34282BOEING Boeing 737-800
→
9/16/2026
1h 27m
No alerts
Replay Analysis
N17433BOEING Boeing 737 MAX 9
→
9/16/2026
2h 13m
No alerts
Replay Analysis
N26215BOEING Boeing 737-800
→
9/15/2026
1h 34m
No alerts
Replay Analysis
N17574BOEING Boeing 737 MAX 9
→
9/15/2026
2h 10m
No alerts
Replay Analysis
N87531BOEING Boeing 737-800
→
9/14/2026
1h 43m
No alerts
Replay Analysis
N38459BOEING Boeing 737-900
→
9/14/2026
2h 27m
No alerts
Replay Analysis
N87531BOEING Boeing 737-800
→
9/12/2026
1h 26m
No alerts
Replay Analysis
N37506BOEING Boeing 737 MAX 9
→
9/12/2026
2h 16m
No alerts
Replay Analysis
N33284BOEING Boeing 737-800
→
9/11/2026
1h 53m
No alerts
Replay Analysis
N27509BOEING Boeing 737 MAX 9
→
9/11/2026
2h 15m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window