Flight Status & Tracker

UAL8120

UNITED AIRLINES INC · SFO → SEA · Last tracked Oct 9, 2026

UAL8120 is a flight number operated by UNITED AIRLINES INC between San Francisco International Airport (KSFO) and Seattle Tacoma International Airport (KSEA). SkyMeter last tracked UAL8120 on October 9, 2026. The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 2h 22m. SkyMeter has observed 68 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
68
last 90 days
⏱
AVG DURATION
2h 22m
tracked time
📅
SERVICE PERIOD
6/24/2025 → 10/9/2026
first → last seen
🗺
ROUTES / TYPES
52 / 10
city pairs · airframes
⚠
INCIDENT RATE
1.5%
1 flagged

Routes flown

By count · last 90 days

10
KSFO → KSEA
5
avg 2h 4m · San Francisco → Seattle Tacoma
KIAH → KSFO
2
avg 3h 35m · George Bush Intercontinental Houston → San Francisco
KSFO → KIAH
2
avg 3h 46m · San Francisco → George Bush Intercontinental Houston
KSFO → KSAN
2
avg 1h 51m · San Francisco → San Diego
KORD → KPHX
1
avg 3h 21m · Chicago O'Hare → Phoenix Sky Harbor
KDEN → KSFO
1
avg 2h 25m · Denver → San Francisco
KIAD → KPDX
1
avg 5h 9m · Washington Dulles → Portland
KSFO → KSAT
1
avg 3h 39m · San Francisco → San Antonio
KORD → CYOW
1
avg 1h 39m · Chicago O'Hare → Ottawa Macdonald-Cartier
KORD → KSFO
1
avg 4h 53m · Chicago O'Hare → San Francisco

Aircraft types

Equipment used on this number

10
B739 BOEING Boeing 737-900
25
B39M BOEING Boeing 737 MAX 9
21
B738 BOEING Boeing 737-800
17
A21N AIRBUS Airbus A321 Neo
9
A320 AIRBUS Airbus A320
5
A319 AIRBUS Airbus A319
4
B752 BOEING Boeing 757-200
3
B38M BOEING Boeing 737 MAX 8
3
ST75 ST75
2
B737 BOEING Boeing 737-700
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
1
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 UAL8120

30
N848UAAIRBUS Airbus A319
→
10/9/2026
5m
No alerts
Replay Analysis
N848UAAIRBUS Airbus A319
→
10/9/2026
3h 38m
No alerts
Replay Analysis
N14235BOEING Boeing 737-800
→
10/7/2026
3h 21m
No alerts
Replay Analysis
N826UAAIRBUS Airbus A319
→
10/5/2026
2h 37m
No alerts
Replay Analysis
N54561ST75
→
10/3/2026
29m
No alerts
Replay Analysis
N54561ST75
→
10/3/2026
2h 4m
No alerts
Replay Analysis
N448UAAIRBUS Airbus A320
→
10/2/2026
1h 13m
No alerts
Replay Analysis
N18112BOEING Boeing 757-200
→
10/1/2026
16m
No alerts
Replay Analysis
N18112BOEING Boeing 757-200
→
9/30/2026
3h 13m
No alerts
Replay Analysis
N18112BOEING Boeing 757-200
→
9/30/2026
2h 57m
No alerts
Replay Analysis
N76505BOEING Boeing 737-800
→
9/28/2026
49m
No alerts
Replay Analysis
N62892BOEING Boeing 737-900
→
9/27/2026
2h 5m
No alerts
Replay Analysis
N77584BOEING Boeing 737 MAX 9
→
9/23/2026
3h 10m
No alerts
Replay Analysis
N17448BOEING Boeing 737 MAX 9
→
9/23/2026
3h 10m
No alerts
Replay Analysis
N17448BOEING Boeing 737 MAX 9
→
9/23/2026
1h 58m
No alerts
Replay Analysis
N17448BOEING Boeing 737 MAX 9
→
9/23/2026
5h 8m
No alerts
Replay Analysis
N27463BOEING Boeing 737 MAX 9
→
9/22/2026
1h 55m
No alerts
Replay Analysis
N27463BOEING Boeing 737 MAX 9
→
9/22/2026
2h 29m
No alerts
Replay Analysis
N27463BOEING Boeing 737 MAX 9
→
9/22/2026
33m
No alerts
Replay Analysis
N47434BOEING Boeing 737 MAX 9
→
9/21/2026
3h 40m
No alerts
Replay Analysis
N17597BOEING Boeing 737 MAX 9
→
9/19/2026
3h 21m
No alerts
Replay Analysis
N17597BOEING Boeing 737 MAX 9
→
9/19/2026
6m
No alerts
Replay Analysis
N69847BOEING Boeing 737-900
→
9/19/2026
1h 21m
No alerts
Replay Analysis
N69847BOEING Boeing 737-900
→
9/19/2026
2h 18m
No alerts
Replay Analysis
N69847BOEING Boeing 737-900
→
9/19/2026
56m
No alerts
Replay Analysis
N38458BOEING Boeing 737-900
→
9/18/2026
2h 22m
No alerts
Replay Analysis
N66848BOEING Boeing 737-900
→
9/17/2026
1h 29m
No alerts
Replay Analysis
N66848BOEING Boeing 737-900
→
9/17/2026
11m
No alerts
Replay Analysis
N77530BOEING Boeing 737-800
→
9/16/2026
1h 42m
No alerts
Replay Analysis
N38424BOEING Boeing 737-900
→
9/12/2026
2h 48m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window