Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL1721

Operated by United Airlines

Live map

Live map filtered to UAL1721. Shown when the flight is currently airborne.

Route airports View route page →

Departure

SFO KSFO VFR

San Francisco International Airport

San Francisco, US

Local time
18:43 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
280° / 21 kt
Visibility
10 SM
Ceiling
FEW 2,700 ft
Temp / Dew
14°C / 7°C
Altimeter
30.16 inHg

Obs: 2026-04-15T00:56:00.000Z

Raw METAR / TAF 
METAR KSFO 150056Z 28021KT 10SM FEW027 14/07 A3016 RMK AO2 PK WND 29026/0015 SLP213 T01440072 $

TAF KSFO 142320Z 1500/1606 28015KT P6SM SCT025 FM150800 27011KT P6SM SCT025 BKN150 FM151800 27018KT P6SM BKN150

flight Live Traffic

flight_takeoff 169 Departures
flight_land 203 Arrivals

Arrival

KOA PHKO VFR

Ellison Onizuka Kona International Airport at Keāhole

Kailua-Kona, US

Local time
15:43 HST
Timezone
Pacific/Honolulu
Type
Large Airport
Elevation
47 ft
Coordinates
19.7388, -156.0456

cloud Weather

Wind
290° / 3 kt
Visibility
10 SM
Ceiling
OVC 3,700 ft
Temp / Dew
26°C / 22°C
Altimeter
30.00 inHg

Obs: 2026-04-15T00:54:00.000Z

Raw METAR / TAF 
SPECI PHKO 150054Z 29003KT 10SM OVC037 26/22 A3000 RMK AO2 T02610222

TAF PHKO 142325Z 1500/1606 24010KT P6SM FEW025 SCT050 FM150600 VRB06KT P6SM SCT025 BKN040 FM152000 25010KT P6SM FEW025 SCT050

flight Live Traffic

flight_takeoff 17 Departures
flight_land 12 Arrivals

Recent history last 3

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-04-13 A9EC06 SFO → KOA Apr 13, 20:30 UTCApr 13, 20:40 UTC10m - -
2026-04-13 A9EC06 SFO → KOA Apr 13, 15:50 UTCApr 13, 16:00 UTC10m - -
2026-04-13 A9EC06 SFO → KOA Apr 13, 15:35 UTCApr 13, 16:00 UTC25m - -

Performance history

Flights tracked
3
Avg arrival delay
-
On-time arrival
-
Aircraft used
1

Monthly activity 1 month

Month Flights tracked
April 2026 3

UAL1721 frequently asked

Where does flight UAL1721 fly?
UAL1721 (United Airlines) flies from SFO to KOA. View the full route page.
How long is flight UAL1721?
Based on observed flights, UAL1721 takes on average 15m from takeoff to landing.
How often does UAL1721 fly?
UAL1721 has been observed flying rarely in our tracking data. We've recorded 3 flights under this callsign.
Can I track UAL1721 live?
Yes. When UAL1721 is currently airborne, the live tracker map above shows its real-time position from ADS-B broadcasts. If the map is empty, the flight is not currently in the air.