UAL2831

UNITED AIRLINES INC · SEA → SFO

UAL2831 is operated by UNITED AIRLINES INC between Seattle Tacoma International Airport (KSEA) and San Francisco International Airport (KSFO). The flight is most often flown by a AIRBUS Airbus A320. Typical block time is 2h 19m. SkyMeter has observed 91 legs of this flight number via ADS-B.

✈
FLIGHTS
91
last 90 days
⏱
AVG DURATION
2h 19m
tracked time
📅
SERVICE PERIOD
05/21/2026 → 08/20/2026
first → last seen
🗺
ROUTES / TYPES
4 / 5
city pairs · airframes
⚠
INCIDENT RATE
1.1%
1 flagged

Routes flown

By count · last 90 days

2
KSEA → KSFO
76
avg 2h 12m · Seattle Tacoma → San Francisco
KSFO → KIAH
5
avg 4h 6m · San Francisco → George Bush Intercontinental Houston

Aircraft types

Equipment used on this number

5
A320 AIRBUS Airbus A320
78
B39M BOEING Boeing 737 MAX 9
10
A21N AIRBUS Airbus A321 Neo
7
B739 BOEING Boeing 737-900
3
A319 AIRBUS Airbus A319
2

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 UAL2831

30
N479UAAIRBUS Airbus A320
→
08/20/2026
2h 10m
No alerts
Replay Analysis
N496UAAIRBUS Airbus A320
→
08/19/2026
2h 24m
No alerts
Replay Analysis
N17411BOEING Boeing 737 MAX 9
→
08/18/2026
2h 30m
No alerts
Replay Analysis
N451UAAIRBUS Airbus A320
→
08/18/2026
1h 56m
No alerts
Replay Analysis
N77592BOEING Boeing 737 MAX 9
→
08/18/2026
1h 56m
No alerts
Replay Analysis
N77592BOEING Boeing 737 MAX 9
→
08/17/2026
2h 17m
No alerts
Replay Analysis
N77592BOEING Boeing 737 MAX 9
→
08/17/2026
4h 28m
No alerts
Replay Analysis
N483UAAIRBUS Airbus A320
→
08/17/2026
2h 28m
No alerts
Replay Analysis
N39423BOEING Boeing 737-900
→
08/17/2026
1h 20m
No alerts
Replay Analysis
N39423BOEING Boeing 737-900
→
08/16/2026
4h 3m
No alerts
Replay Analysis
N39423BOEING Boeing 737-900
→
08/16/2026
2h 42m
No alerts
Replay Analysis
N431UAAIRBUS Airbus A320
→
08/16/2026
2h 38m
No alerts
Replay Analysis
N77578BOEING Boeing 737 MAX 9
→
08/16/2026
1h 28m
No alerts
Replay Analysis
N77578BOEING Boeing 737 MAX 9
→
08/15/2026
2h 31m
No alerts
Replay Analysis
N77578BOEING Boeing 737 MAX 9
→
08/15/2026
3h 59m
No alerts
Replay Analysis
N495UAAIRBUS Airbus A320
→
08/15/2026
2h 9m
No alerts
Replay Analysis
N44501AIRBUS Airbus A321 Neo
→
08/15/2026
2h 3m
No alerts
Replay Analysis
N44501AIRBUS Airbus A321 Neo
→
08/14/2026
1h 59m
No alerts
Replay Analysis
N44501AIRBUS Airbus A321 Neo
→
08/14/2026
4h 3m
No alerts
Replay Analysis
N465UAAIRBUS Airbus A320
→
08/14/2026
2h 12m
No alerts
Replay Analysis
N438UAAIRBUS Airbus A320
→
08/13/2026
1h 59m
No alerts
Replay Analysis
N464UAAIRBUS Airbus A320
→
08/12/2026
2h 13m
No alerts
Replay Analysis
N17459BOEING Boeing 737 MAX 9
→
08/12/2026
1h 16m
No alerts
Replay Analysis
N17459BOEING Boeing 737 MAX 9
→
08/11/2026
3h 57m
No alerts
Replay Analysis
N17459BOEING Boeing 737 MAX 9
→
08/11/2026
2h 40m
No alerts
Replay Analysis
N458UAAIRBUS Airbus A320
→
08/11/2026
2h 20m
No alerts
Replay Analysis
N24573
→
08/10/2026
1h 48m
No alerts
Replay Analysis
N458UAAIRBUS Airbus A320
→
08/08/2026
2h 19m
No alerts
Replay Analysis
N435UAAIRBUS Airbus A320
→
08/07/2026
2h 5m
No alerts
Replay Analysis
N477UAAIRBUS Airbus A320
→
08/06/2026
2h 5m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window