UAL8109

UNITED AIRLINES INC · IAH → SFO

UAL8109 is operated by UNITED AIRLINES INC between George Bush Intercontinental Houston Airport (KIAH) and San Francisco International Airport (KSFO). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 2h 18m. SkyMeter has observed 32 legs of this flight number via ADS-B.

✈
FLIGHTS
32
last 90 days
⏱
AVG DURATION
2h 18m
tracked time
📅
SERVICE PERIOD
06/06/2025 → 06/28/2026
first → last seen
🗺
ROUTES / TYPES
24 / 9
city pairs · airframes
⚠
INCIDENT RATE
12.5%
4 flagged

Routes flown

By count · last 90 days

10
KIAH → KSFO
3
avg 3h 49m · George Bush Intercontinental Houston → San Francisco
KORD → KEWR
3
avg 1h 36m · Chicago O'Hare → Newark Liberty
KORD → KMSP
2
avg 1h 7m · Chicago O'Hare → Minneapolis-St Paul International/Wold-Chamberlain
KDEN → KOMA
2
avg 1h 32m · Denver → Eppley Airfield
KSFO → KLAX
1
avg 1h 13m · San Francisco → Los Angeles
KPHL → KORD
1
avg 1h 51m · Philadelphia → Chicago O'Hare
KDEN → KPHL
1
avg 3h 38m · Denver → Philadelphia
KORD → KLAX
1
avg 3h 50m · Chicago O'Hare → Los Angeles
KSFO → KIAH
1
avg 3h 59m · San Francisco → George Bush Intercontinental Houston
KBNA → KORD
1
avg 1h 22m · Nashville → Chicago O'Hare

Aircraft types

Equipment used on this number

9
B39M BOEING Boeing 737 MAX 9
12
B739 BOEING Boeing 737-900
10
A320 AIRBUS Airbus A320
4
B752 BOEING Boeing 757-200
4
B38M BOEING Boeing 737 MAX 8
3
A319 AIRBUS Airbus A319
3
A21N AIRBUS Airbus A321 Neo
2
B738 BOEING Boeing 737-800
1
B753 BOEING Boeing 757-300
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
4
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 UAL8109

30
N37474BOEING Boeing 737-900
→
06/28/2026
1h 21m
No alerts
Replay Analysis
N475UAAIRBUS Airbus A320
→
06/25/2026
1h 44m
No alerts
Replay Analysis
N17344BOEING Boeing 737 MAX 8
→
06/23/2026
3h 25m
No alerts
Replay Analysis
N17344BOEING Boeing 737 MAX 8
→
06/22/2026
1h 26m
No alerts
Replay Analysis
N17344BOEING Boeing 737 MAX 8
→
06/22/2026
4h 51m
No alerts
Replay Analysis
N14565AIRBUS Airbus A321 Neo
→
06/22/2026
2h 11m
No alerts
Replay Analysis
N77576BOEING Boeing 737 MAX 9
→
06/15/2026
3h 59m
No alerts
Replay Analysis
N37516BOEING Boeing 737 MAX 9
→
06/13/2026
1h 12m
No alerts
Replay Analysis
N69833BOEING Boeing 737-900
→
06/12/2026
2h 9m
No alerts
Replay Analysis
N69833BOEING Boeing 737-900
→
06/11/2026
15m
No alerts
Replay Analysis
N69833BOEING Boeing 737-900
→
06/11/2026
21m
No alerts
Replay Analysis
N69833BOEING Boeing 737-900
→
06/11/2026
4h 38m
No alerts
Replay Analysis
N475UAAIRBUS Airbus A320
→
06/11/2026
49m
No alerts
Replay Analysis
N77585BOEING Boeing 737 MAX 9
→
06/09/2026
4h 49m
No alerts
Replay Analysis
N17444BOEING Boeing 737 MAX 9
→
06/03/2026
3h 40m
No alerts
Replay Analysis
N435UAAIRBUS Airbus A320
→
06/02/2026
1h 20m
No alerts
Replay Analysis
N62894BOEING Boeing 737-900
→
05/30/2026
1h 33m
No alerts
Replay Analysis
N47569BOEING Boeing 737 MAX 9
→
05/26/2026
3h 47m
No alerts
Replay Analysis
N77558BOEING Boeing 737 MAX 9
→
05/24/2026
7m
No alerts
Replay Analysis
N77558BOEING Boeing 737 MAX 9
→
05/24/2026
59m
No alerts
Replay Analysis
N77558BOEING Boeing 737 MAX 9
→
05/23/2026
51m
No alerts
Replay Analysis
N77558BOEING Boeing 737 MAX 9
→
05/23/2026
1h 51m
No alerts
Replay Analysis
N39418BOEING Boeing 737-900
→
05/16/2026
2h 15m
△ Unstable
Replay Analysis
N39418BOEING Boeing 737-900
→
05/15/2026
1h 53m
No alerts
Replay Analysis
N39418BOEING Boeing 737-900
→
05/15/2026
4h 9m
△ Unstable
Replay Analysis
N44522AIRBUS Airbus A321 Neo
→
05/08/2026
3h 49m
No alerts
Replay Analysis
N77559BOEING Boeing 737 MAX 9
→
05/04/2026
3h 38m
No alerts
Replay Analysis
N33103BOEING Boeing 757-200
→
05/02/2026
1h 29m
△ Unstable
Replay Analysis
N33103BOEING Boeing 757-200
→
05/02/2026
10m
No alerts
Replay Analysis
N16217BOEING Boeing 737-800
→
05/01/2026
1h 54m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window