Flight Status & Tracker

UAL858

UNITED AIRLINES INC · US-0188 → SFO · Last tracked Sep 27, 2026

UAL858 is a flight number operated by UNITED AIRLINES INC between Coast Guard Air Station San Francisco (US-0188) and San Francisco International Airport (KSFO). SkyMeter last tracked UAL858 on September 27, 2026. The flight is most often flown by a BOEING Boeing 777-300ER. Typical block time is 9h 30m. SkyMeter has observed 85 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
85
last 90 days
⏱
AVG DURATION
9h 30m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/27/2026
first → last seen
🗺
ROUTES / TYPES
2 / 2
city pairs · airframes
⚠
INCIDENT RATE
1.2%
1 flagged

Routes flown

By count · last 90 days

1
US-0188 → KSFO
2
avg 10h 29m · Coast Guard Air Station San Francisco → San Francisco

Aircraft types

Equipment used on this number

2
B77W BOEING Boeing 777-300ER
83
B772 BOEING Boeing 777-200
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 UAL858

30
N2138UBOEING Boeing 777-300ER
→
9/27/2026
54m
No alerts
Replay Analysis
N2639UBOEING Boeing 777-300ER
→
9/26/2026
51m
No alerts
Replay Analysis
N2136UBOEING Boeing 777-300ER
→
9/24/2026
9h 40m
No alerts
Replay Analysis
N2747UBOEING Boeing 777-300ER
→
9/23/2026
9h 48m
No alerts
Replay Analysis
N2639UBOEING Boeing 777-300ER
→
9/22/2026
10h 15m
No alerts
Replay Analysis
N2138UBOEING Boeing 777-300ER
→
9/21/2026
45m
No alerts
Replay Analysis
N2341UBOEING Boeing 777-300ER
→
9/20/2026
10h 10m
No alerts
Replay Analysis
N2737UBOEING Boeing 777-300ER
→
9/19/2026
10h 2m
No alerts
Replay Analysis
N2135UBOEING Boeing 777-300ER
→
9/18/2026
10h 6m
No alerts
Replay Analysis
N2737UBOEING Boeing 777-300ER
→
9/17/2026
53m
No alerts
Replay Analysis
N2748UBOEING Boeing 777-300ER
→
9/16/2026
9h 41m
No alerts
Replay Analysis
N2135UBOEING Boeing 777-300ER
→
9/15/2026
10h 5m
No alerts
Replay Analysis
N2140UBOEING Boeing 777-300ER
→
9/14/2026
10h 13m
No alerts
Replay Analysis
N2138UBOEING Boeing 777-300ER
→
9/13/2026
9h 59m
No alerts
Replay Analysis
N2140UBOEING Boeing 777-300ER
→
9/12/2026
10h 18m
No alerts
Replay Analysis
N2136UBOEING Boeing 777-300ER
→
9/11/2026
10h 17m
No alerts
Replay Analysis
N2749UBOEING Boeing 777-300ER
→
9/10/2026
9h 56m
No alerts
Replay Analysis
N2534UBOEING Boeing 777-300ER
→
9/9/2026
10h 1m
No alerts
Replay Analysis
N2135UBOEING Boeing 777-300ER
→
9/8/2026
10h 39m
No alerts
Replay Analysis
N2333UBOEING Boeing 777-300ER
→
9/6/2026
10h 32m
No alerts
Replay Analysis
N2251UBOEING Boeing 777-300ER
→
9/4/2026
10h 23m
No alerts
Replay Analysis
N2748UBOEING Boeing 777-300ER
→
9/3/2026
10h 3m
No alerts
Replay Analysis
N2332UBOEING Boeing 777-300ER
→
9/2/2026
10h 25m
No alerts
Replay Analysis
N2749UBOEING Boeing 777-300ER
→
9/1/2026
10h 36m
No alerts
Replay Analysis
N2644UBOEING Boeing 777-300ER
→
8/31/2026
10h 12m
No alerts
Replay Analysis
N2136UBOEING Boeing 777-300ER
→
8/30/2026
10h 7m
No alerts
Replay Analysis
N2644UBOEING Boeing 777-300ER
→
8/29/2026
51m
No alerts
Replay Analysis
N2331UBOEING Boeing 777-300ER
→
8/28/2026
10h 33m
No alerts
Replay Analysis
N2644UBOEING Boeing 777-300ER
→
8/27/2026
10h 47m
No alerts
Replay Analysis
N2639UBOEING Boeing 777-300ER
→
8/26/2026
10h 25m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window