Flight Status & Tracker

UAL1721

UNITED AIRLINES INC · SFO → KOA · Last tracked Sep 27, 2026

UAL1721 is a flight number operated by UNITED AIRLINES INC between San Francisco International Airport (KSFO) and Ellison Onizuka Kona International Airport at Keahole (PHKO). SkyMeter last tracked UAL1721 on September 27, 2026. The flight is most often flown by a BOEING Boeing 757-300. Typical block time is 1h 55m. SkyMeter has observed 82 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
82
last 90 days
⏱
AVG DURATION
1h 55m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/27/2026
first → last seen
🗺
ROUTES / TYPES
4 / 2
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

1
1
avg 5h 15m · San Francisco → Ellison Onizuka Kona International Airport at Keahole

Aircraft types

Equipment used on this number

2

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 UAL1721

30
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window