Flight Status & Tracker

UAL2171

UNITED AIRLINES INC · EWR → SFO · Last tracked Sep 24, 2026

UAL2171 is a flight number operated by UNITED AIRLINES INC between Newark Liberty International Airport (KEWR) and San Francisco International Airport (KSFO). SkyMeter last tracked UAL2171 on September 24, 2026. The flight is most often flown by a BOEING Boeing 777-300ER. Typical block time is 3h 31m. SkyMeter has observed 97 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
97
last 90 days
⏱
AVG DURATION
3h 31m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/24/2026
first → last seen
🗺
ROUTES / TYPES
13 / 7
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

8
KEWR → KSFO
28
avg 5h 54m · Newark Liberty → San Francisco
KONT → KORD
22
avg 3h 51m · Ontario → Chicago O'Hare
KORD → KEWR
18
avg 1h 58m · Chicago O'Hare → Newark Liberty
KSFO → KMSP
1
avg 4h 1m · San Francisco → Minneapolis-St Paul International/Wold-Chamberlain
8NJ3 → KEWR
1
avg 42m · Lembo Heliport → Newark Liberty
KONT → KRFD
1
avg 5h 18m · Ontario → Chicago Rockford
KMSN → KSFO
1
avg 4h 11m · Dane County Regional Truax Field → San Francisco
KRFD → KORD
1
avg 36m · Chicago Rockford → Chicago O'Hare

Aircraft types

Equipment used on this number

7
B77W BOEING Boeing 777-300ER
65
B752 BOEING Boeing 757-200
41
B739 BOEING Boeing 737-900
30
B772 BOEING Boeing 777-200
9
B763 BOEING Boeing 767-300
1
B738 BOEING Boeing 737-800
1
B39M BOEING Boeing 737 MAX 9
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
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 UAL2171

30
N2333UBOEING Boeing 777-300ER
→
9/24/2026
5h 41m
No alerts
Replay Analysis
N2331UBOEING Boeing 777-300ER
→
9/23/2026
4h 9m
No alerts
Replay Analysis
N2331UBOEING Boeing 777-300ER
→
9/23/2026
1h 44m
No alerts
Replay Analysis
N2331UBOEING Boeing 777-300ER
→
9/23/2026
5h 54m
No alerts
Replay Analysis
N2749UBOEING Boeing 777-300ER
→
9/21/2026
5h 8m
No alerts
Replay Analysis
N2749UBOEING Boeing 777-300ER
→
9/21/2026
55m
No alerts
Replay Analysis
N2142UBOEING Boeing 777-300ER
→
9/20/2026
3h 47m
No alerts
Replay Analysis
N2142UBOEING Boeing 777-300ER
→
9/19/2026
5h 48m
No alerts
Replay Analysis
N2142UBOEING Boeing 777-300ER
→
9/19/2026
2h 0m
No alerts
Replay Analysis
N792UABOEING Boeing 777-200
→
9/19/2026
3h 57m
No alerts
Replay Analysis
N792UABOEING Boeing 777-200
→
9/19/2026
5h 35m
No alerts
Replay Analysis
N792UABOEING Boeing 777-200
→
9/19/2026
1h 37m
No alerts
Replay Analysis
N2243UBOEING Boeing 777-300ER
→
9/18/2026
4h 33m
No alerts
Replay Analysis
N2243UBOEING Boeing 777-300ER
→
9/18/2026
5h 30m
No alerts
Replay Analysis
N2243UBOEING Boeing 777-300ER
→
9/18/2026
57m
No alerts
Replay Analysis
N2332UBOEING Boeing 777-300ER
→
9/17/2026
4h 14m
No alerts
Replay Analysis
N2332UBOEING Boeing 777-300ER
→
9/17/2026
1h 59m
No alerts
Replay Analysis
N2332UBOEING Boeing 777-300ER
→
9/17/2026
6h 14m
No alerts
Replay Analysis
N2138UBOEING Boeing 777-300ER
→
9/16/2026
4h 9m
No alerts
Replay Analysis
N2138UBOEING Boeing 777-300ER
→
9/16/2026
6h 8m
No alerts
Replay Analysis
N2138UBOEING Boeing 777-300ER
→
9/16/2026
1h 58m
No alerts
Replay Analysis
N2534UBOEING Boeing 777-300ER
→
9/15/2026
4h 1m
No alerts
Replay Analysis
N2534UBOEING Boeing 777-300ER
→
9/15/2026
5h 51m
No alerts
Replay Analysis
N2534UBOEING Boeing 777-300ER
→
9/15/2026
1h 49m
No alerts
Replay Analysis
N2748UBOEING Boeing 777-300ER
→
9/14/2026
4h 50m
No alerts
Replay Analysis
N2352UBOEING Boeing 777-300ER
→
9/13/2026
5h 0m
No alerts
Replay Analysis
N2352UBOEING Boeing 777-300ER
→
9/13/2026
40m
No alerts
Replay Analysis
N2352UBOEING Boeing 777-300ER
→
9/13/2026
5h 41m
No alerts
Replay Analysis
N2644UBOEING Boeing 777-300ER
→
9/12/2026
32m
No alerts
Replay Analysis
N2142UBOEING Boeing 777-300ER
→
9/11/2026
5h 45m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window