Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL1646

Operated by United Airlines

Live map

Live map filtered to UAL1646. 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
19:58 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
280° / 13 kt
Visibility
10 SM
Ceiling
FEW 2,600 ft
Temp / Dew
16°C / 11°C
Altimeter
29.92 inHg

Obs: 2026-10-13T01:56:00.000Z

Raw METAR / TAF 
METAR KSFO 130156Z 28013KT 10SM FEW026 16/11 A2992 RMK AO2 SLP131 T01610111 $

TAF KSFO 122320Z 1300/1406 28012KT P6SM SKC FM130300 28006KT P6SM SKC FM131400 08004KT P6SM SKC FM132000 32011KT P6SM SKC FM140400 28007KT P6SM SKC

flight Live Traffic

flight_takeoff 251 Departures
flight_land 251 Arrivals

Arrival

AUS KAUS VFR

Austin Bergstrom International Airport

Austin, US

Local time
21:58 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
542 ft
Coordinates
30.1975, -97.6620

cloud Weather

Wind
120° / 6 kt
Visibility
10 SM
Ceiling
BKN 4,700 ft, BKN 5,500 ft
Temp / Dew
28°C / 24°C
Altimeter
29.93 inHg

Obs: 2026-10-13T01:53:00.000Z

Raw METAR / TAF 
METAR KAUS 130153Z 12006KT 10SM BKN047 BKN055 28/24 A2993 RMK AO2 SLP127 T02780239 $

TAF KAUS 122338Z 1300/1406 14012KT P6SM SCT045 SCT100 BKN200 FM130100 16008KT P6SM SCT200 FM130700 17008KT P6SM OVC015 FM131500 18011KT P6SM OVC025 FM131800 18011G21KT P6SM BKN040 BKN150 FM140000 16013G23KT P6SM SCT150

flight Live Traffic

flight_takeoff 132 Departures
flight_land 132 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A12A81 SFO → AUS Jul 26, 00:50 UTCJul 26, 03:45 UTC2h 55m - -
2026-07-25 A12A81 SFO → AUS Jul 25, 00:40 UTCJul 25, 03:45 UTC3h 5m - -
2026-07-24 A2BC12 SFO → AUS Jul 24, 00:25 UTCJul 24, 03:30 UTC3h 5m - -
2026-07-23 A4493E SFO → AUS Jul 23, 00:50 UTCJul 23, 03:45 UTC2h 55m - -
2026-07-22 A12B2F SFO → AUS Jul 22, 00:45 UTCJul 22, 03:35 UTC2h 50m - -
2026-07-21 AA7F28 SFO → AUS Jul 21, 00:20 UTCJul 21, 03:10 UTC2h 50m - -
2026-07-20 A445AB SFO → AUS Jul 20, 01:23 UTCJul 20, 04:15 UTC2h 52m +90m -4m
2026-07-20 A445AB SFO → AUS Jul 20, 01:20 UTCJul 20, 04:20 UTC3h 0m - -
2026-07-19 AA7F09 SFO → AUS Jul 19, 00:19 UTCJul 19, 03:20 UTC3h 1m +26m -8m
2026-07-19 AA7F09 SFO → AUS Jul 19, 00:25 UTCJul 19, 03:25 UTC3h 0m - -
2026-07-18 A44938 SFO → AUS Jul 18, 00:50 UTCJul 18, 03:45 UTC2h 56m - -
2026-07-18 A44938 SFO → AUS Jul 18, 00:53 UTCJul 18, 03:45 UTC2h 52m +60m -17m
2026-07-17 A449A2 DEN → BWI Jul 17, 00:21 UTCJul 17, 03:42 UTC3h 21m +28m -15m
2026-07-17 A449A2 DEN → BWI Jul 17, 00:40 UTCJul 17, 03:39 UTC3h 0m - -
2026-07-16 A12AC1 DEN → BWI Jul 16, 00:35 UTCJul 16, 03:40 UTC3h 5m - -
2026-07-15 A5D68A DEN → BWI Jul 15, 00:35 UTCJul 15, 03:40 UTC3h 5m - -
2026-07-14 A12B07 DEN → BWI Jul 14, 00:45 UTCJul 14, 03:50 UTC3h 5m - -
2026-07-13 A12E80 - Jul 13, 00:20 UTCJul 13, 03:20 UTC3h 0m - -
2026-07-12 AD953C DEN → BWI Jul 12, 00:20 UTCJul 12, 03:15 UTC2h 55m - -
2026-07-11 A2BC9E DEN → BWI Jul 11, 02:00 UTCJul 11, 05:01 UTC3h 0m - -
2026-07-11 A2BC9E DEN → BWI Jul 11, 00:26 UTCJul 11, 05:01 UTC4h 35m +33m +31m
2026-07-10 AA7F2A DEN → BWI Jul 10, 01:10 UTCJul 10, 04:25 UTC3h 15m - -
2026-07-09 A448FA DEN → BWI Jul 9, 01:40 UTCJul 9, 04:50 UTC3h 10m - -
2026-07-08 A5D2F9 DEN → BWI Jul 8, 01:10 UTCJul 8, 04:20 UTC3h 10m - -
2026-07-07 A5D2F9 - Jul 7, 04:05 UTCJul 7, 05:00 UTC55m - -
2026-07-07 A5D2F9 DEN → CMH Jul 7, 00:25 UTCJul 7, 02:50 UTC2h 25m - -
2026-07-06 AC0831 - Jul 6, 00:40 UTCJul 6, 03:45 UTC3h 5m - -
2026-07-04 A12AC3 DEN → BWI Jul 4, 01:05 UTCJul 4, 04:15 UTC3h 10m - -
2026-07-04 A12AC3 DEN → BWI Jul 4, 00:43 UTCJul 4, 04:16 UTC3h 33m +50m -8m
2026-07-03 A12F71 DEN → BWI Jul 3, 00:25 UTCJul 3, 03:25 UTC3h 0m - -

Performance history

Flights tracked
128 showing last 30
Avg arrival delay
-3m
On-time arrival
83% 83% on time
Aircraft used
21

Monthly activity 4 months

Month Flights tracked
July 2026 34
June 2026 33
May 2026 36
April 2026 25

UAL1646 frequently asked

Where does flight UAL1646 fly?
UAL1646 (United Airlines) flies from SFO to AUS. View the full route page.
How long is flight UAL1646?
Based on observed flights, UAL1646 takes on average 3h 0m from takeoff to landing.
How often does UAL1646 fly?
UAL1646 has been observed flying several times a week in our tracking data. We've recorded 128 flights under this callsign.
Is flight UAL1646 usually on time?
Across recent flights, UAL1646 arrives 3 minutes early on average. 83% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL1646?
UAL1646 has been operated by 21 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL1646 live?
Yes. When UAL1646 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.