Apparatus

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flight_takeoff Flight

UAL1544

Operated by United Airlines

Live map

Live map filtered to UAL1544. 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
00:22 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
280° / 15 kt
Visibility
10 SM
Ceiling
FEW 400 ft, BKN 20,000 ft
Temp / Dew
16°C / 13°C
Altimeter
29.95 inHg

Obs: 2026-08-28T06:56:00.000Z

Raw METAR / TAF 
METAR KSFO 280656Z 28015KT 10SM FEW004 BKN200 16/13 A2995 RMK AO2 SLP141 T01560128 $

TAF KSFO 280520Z 2806/2912 29008KT P6SM BKN150 FM281100 30008KT P6SM VCSH BKN050 OVC100 FM282000 29014KT P6SM VCSH BKN050 OVC100 FM290300 29010KT P6SM SCT010 BKN120 FM291000 29007KT P6SM BKN010

flight Live Traffic

flight_takeoff 192 Departures
flight_land 119 Arrivals

Arrival

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
01:22 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
160° / 9 kt
Visibility
10 SM
Ceiling
FEW 12,000 ft, FEW 22,000 ft
Temp / Dew
18°C / 9°C
Altimeter
30.18 inHg

Obs: 2026-08-28T06:53:00.000Z

Raw METAR / TAF 
METAR KDEN 280653Z 16009KT 10SM FEW120 FEW220 18/09 A3018 RMK AO2 SLP133 T01830094 403330156

TAF KDEN 280536Z 2806/2912 18011KT P6SM FEW100 FEW150 FM281100 23011KT P6SM FEW120 FM281600 VRB06KT P6SM FEW120 FM282100 02008KT P6SM FEW100 SCT120 PROB30 2821/2902 VRB15G25KT -SHRA BKN080 FM290200 VRB06KT P6SM SCT120 BKN220 FM290500 22009KT P6SM FEW120 SCT220

flight Live Traffic

flight_takeoff 143 Departures
flight_land 156 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-25 A8AD4E SFO → DEN Jul 25, 23:50 UTCJul 26, 02:00 UTC2h 10m +55m -4m
2026-07-25 A8AD4E SFO → DEN Jul 25, 23:45 UTCJul 26, 02:05 UTC2h 20m - -
2026-07-24 A2E045 SFO → DEN Jul 24, 23:15 UTCJul 25, 01:30 UTC2h 15m - -
2026-07-23 A94B4B SFO → DEN Jul 23, 23:15 UTCJul 24, 01:50 UTC2h 35m - -
2026-07-23 A94B4B SFO → DEN Jul 23, 23:23 UTCJul 24, 01:44 UTC2h 21m +28m -12m
2026-07-22 A46D4A SFO → DEN Jul 22, 23:10 UTCJul 23, 01:40 UTC2h 30m - -
2026-07-20 A94B0A SFO → DEN Jul 20, 23:30 UTCJul 21, 01:45 UTC2h 14m - -
2026-07-20 A94B2E SFO → DEN Jul 20, 00:10 UTCJul 20, 02:30 UTC2h 20m - -
2026-07-17 A94B0B SFO → DEN Jul 17, 23:45 UTCJul 18, 02:00 UTC2h 15m - -
2026-07-16 A445F0 - Jul 16, 23:40 UTCJul 17, 01:59 UTC2h 20m - -
2026-07-16 A94B0B EWR → TPA Jul 16, 00:28 UTCJul 16, 02:42 UTC2h 14m +93m -5m
2026-07-16 A94B0B - Jul 16, 00:30 UTCJul 16, 02:45 UTC2h 15m - -
2026-07-14 A85F20 EWR → TPA Jul 14, 23:20 UTCJul 15, 01:30 UTC2h 10m - -
2026-07-13 A44588 EWR → TPA Jul 13, 23:30 UTCJul 14, 01:45 UTC2h 15m - -
2026-07-12 A41E74 EWR → TPA Jul 12, 23:15 UTCJul 13, 01:30 UTC2h 15m - -
2026-07-11 A8D5A0 EWR → TPA Jul 11, 23:23 UTCJul 12, 01:35 UTC2h 12m +28m -7m
2026-07-11 A8D5A0 EWR → TPA Jul 11, 23:25 UTCJul 12, 01:35 UTC2h 10m - -
2026-07-11 A81000 EWR → TPA Jul 11, 00:15 UTCJul 11, 02:35 UTC2h 20m - -
2026-07-10 A85F20 - Jul 10, 01:00 UTCJul 10, 03:30 UTC2h 30m - -
2026-07-08 A923A9 - Jul 8, 23:25 UTCJul 9, 01:45 UTC2h 20m - -
2026-07-07 A449A3 EWR → TPA Jul 7, 23:35 UTCJul 8, 01:55 UTC2h 20m - -
2026-07-07 A83782 EWR → TPA Jul 7, 02:55 UTCJul 7, 05:20 UTC2h 25m +240m -29m
2026-07-07 A83782 EWR → TPA Jul 7, 03:00 UTCJul 7, 05:25 UTC2h 25m - -
2026-07-05 A46D4F - Jul 5, 23:30 UTCJul 6, 01:40 UTC2h 10m - -
2026-07-03 A8D4CC EWR → TPA Jul 3, 23:23 UTCJul 4, 02:12 UTC2h 49m +28m +16m
2026-07-03 A8D4CC EWR → TPA Jul 3, 23:55 UTCJul 4, 02:20 UTC2h 25m - -
2026-07-02 A41E94 - Jul 2, 23:25 UTCJul 3, 01:35 UTC2h 10m - -
2026-07-01 A494C5 - Jul 1, 23:55 UTCJul 2, 02:15 UTC2h 20m - -
2026-06-30 A837A7 - Jun 30, 23:50 UTCJul 1, 01:55 UTC2h 5m - -
2026-06-29 A94B50 EWR → TPA Jun 29, 23:25 UTCJun 30, 01:40 UTC2h 16m - -

Performance history

Flights tracked
120 showing last 30
Avg arrival delay
-7m
On-time arrival
83% 83% on time
Aircraft used
22

Monthly activity 4 months

Month Flights tracked
July 2026 28
June 2026 36
May 2026 33
April 2026 23

UAL1544 frequently asked

Where does flight UAL1544 fly?
UAL1544 (United Airlines) flies from SFO to DEN. View the full route page.
How long is flight UAL1544?
Based on observed flights, UAL1544 takes on average 2h 19m from takeoff to landing.
How often does UAL1544 fly?
UAL1544 has been observed flying several times a week in our tracking data. We've recorded 120 flights under this callsign.
Is flight UAL1544 usually on time?
Across recent flights, UAL1544 arrives 7 minutes early on average. 83% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL1544?
UAL1544 has been operated by 22 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL1544 live?
Yes. When UAL1544 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.