Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL1856

Operated by United Airlines

Live map

Live map filtered to UAL1856. Shown when the flight is currently airborne.

Route airports View route page →

Departure

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
17:17 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
330° / 16G29 kt
Visibility
10 SM
Ceiling
BKN 10,000 ft, BKN 14,000 ft, BKN 22,000 ft
Temp / Dew
30°C / 8°C
Altimeter
30.11 inHg

Obs: 2026-08-28T23:05:00.000Z

Raw METAR / TAF 
SPECI KDEN 282305Z 33016G29KT 10SM BKN100 BKN140 BKN220 30/08 A3011 RMK AO2 PK WND 33029/2302 WSHFT 2245 T03000078

TAF KDEN 282220Z 2822/2924 18012KT P6SM VCSH FEW100 BKN140 FM282245 33014G22KT P6SM VCSH SCT100 BKN140 TEMPO 2823/2824 VRB20G40KT -TSRA BKN080CB FM290000 33010KT P6SM FEW100 BKN120 PROB30 2900/2902 VRB15G30KT -SHRA BKN080 FM290200 16006KT P6SM SCT120 BKN220 FM290500 22009KT P6SM FEW120 SCT220 FM291600 25007KT P6SM FEW110 SCT200 FM291900 25010KT P6SM VCSH SCT100 BKN150 PROB30 2920/2924 VRB20G35KT -TSRA BKN080CB

warning FAA Advisories

  • Ground Delay: thunderstorms (avg 21 minutes)

flight Live Traffic

flight_takeoff 270 Departures
flight_land 318 Arrivals

Arrival

SFO KSFO VFR

San Francisco International Airport

San Francisco, US

Local time
16:17 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
290° / 14 kt
Visibility
10 SM
Ceiling
FEW 400 ft, FEW 1,200 ft, SCT 11,000 ft, BKN 18,000 ft
Temp / Dew
17°C / 13°C
Altimeter
30.00 inHg

Obs: 2026-08-28T22:56:00.000Z

Raw METAR / TAF 
METAR KSFO 282256Z 29014KT 10SM FEW004 FEW012 SCT110 BKN180 17/13 A3000 RMK AO2 SLP159 T01720128 $

TAF KSFO 282047Z 2821/2924 28016KT P6SM VCSH SCT010 BKN100 FM290600 28012KT P6SM FEW012 FM291000 29008KT P6SM SCT012 FM291800 29015KT P6SM FEW015

flight Live Traffic

flight_takeoff 211 Departures
flight_land 214 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A12EE7 DEN → SFO Jul 26, 16:20 UTCJul 26, 17:45 UTC1h 25m - -
2026-07-26 A12EE7 DEN → SFO Jul 26, 16:22 UTCJul 26, 17:52 UTC1h 30m +31m +8m
2026-07-26 AB618B DEN → SFO Jul 26, 11:30 UTCJul 26, 12:30 UTC1h 0m - -
2026-07-25 A81000 DEN → SFO Jul 25, 16:10 UTCJul 25, 17:50 UTC1h 40m - -
2026-07-25 A4943E DEN → SFO Jul 25, 11:15 UTCJul 25, 12:15 UTC1h 0m - -
2026-07-25 A4943E DEN → SFO Jul 25, 11:20 UTCJul 25, 11:59 UTC39m +20m +14m
2026-07-24 AA7EC2 DEN → SFO Jul 24, 16:35 UTCJul 24, 18:05 UTC1h 30m - -
2026-07-24 AAA590 DEN → SFO Jul 24, 11:15 UTCJul 24, 12:30 UTC1h 15m - -
2026-07-23 A448D3 DEN → SFO Jul 23, 16:25 UTCJul 23, 18:00 UTC1h 35m - -
2026-07-23 AA7E7C DEN → SFO Jul 23, 11:15 UTCJul 23, 12:05 UTC50m - -
2026-07-23 AA7E7C DEN → SFO Jul 23, 11:20 UTCJul 23, 11:58 UTC38m +20m +1m
2026-07-22 A94B29 DEN → SFO Jul 22, 16:51 UTCJul 22, 18:16 UTC1h 25m +60m +17m
2026-07-22 A94B29 DEN → SFO Jul 22, 16:45 UTCJul 22, 18:10 UTC1h 25m - -
2026-07-22 A9D5E5 DEN → SFO Jul 22, 11:25 UTCJul 22, 12:10 UTC45m - -
2026-07-22 A81006 DEN → SFO Jul 22, 03:50 UTCJul 22, 05:15 UTC1h 25m - -
2026-07-21 A14B1A DEN → SFO Jul 21, 11:15 UTCJul 21, 12:05 UTC50m - -
2026-07-20 A8D4EF DEN → SFO Jul 20, 16:20 UTCJul 20, 18:00 UTC1h 40m - -
2026-07-20 A8D46A DEN → SFO Jul 20, 11:15 UTCJul 20, 12:20 UTC1h 5m - -
2026-07-19 AB9B9D DEN → SFO Jul 19, 11:20 UTCJul 19, 11:54 UTC34m +20m +2m
2026-07-18 A2DFFE DEN → SFO Jul 18, 11:20 UTCJul 18, 12:20 UTC1h 0m - -
2026-07-17 A12AE3 DEN → SFO Jul 17, 16:44 UTCJul 17, 18:19 UTC1h 35m - -
2026-07-17 A43EA2 DEN → SFO Jul 17, 11:15 UTCJul 17, 12:10 UTC55m - -
2026-07-16 A12AC0 ORD → EWR Jul 16, 16:44 UTCJul 16, 18:15 UTC1h 30m - -
2026-07-16 A239E0 - Jul 16, 11:10 UTCJul 16, 12:00 UTC50m - -
2026-07-15 A8FC2E - Jul 15, 16:25 UTCJul 15, 18:10 UTC1h 45m - -
2026-07-15 A43E83 - Jul 15, 11:05 UTCJul 15, 11:55 UTC50m - -
2026-07-15 A43E83 DSM → ORD Jul 15, 11:20 UTCJul 15, 11:47 UTC27m +20m +22m
2026-07-14 AA7F02 ORD → EWR Jul 14, 16:22 UTCJul 14, 17:54 UTC1h 32m +31m -7m
2026-07-14 AA7F02 ORD → EWR Jul 14, 16:15 UTCJul 14, 17:55 UTC1h 40m - -
2026-07-14 AC0B7F - Jul 14, 11:20 UTCJul 14, 12:15 UTC55m - -

Performance history

Flights tracked
238 showing last 30
Avg arrival delay
+8m
On-time arrival
71% 71% on time
Aircraft used
24

Monthly activity 4 months

Month Flights tracked
July 2026 61
June 2026 74
May 2026 78
April 2026 25

UAL1856 frequently asked

Where does flight UAL1856 fly?
UAL1856 (United Airlines) flies from DEN to SFO. View the full route page.
How long is flight UAL1856?
Based on observed flights, UAL1856 takes on average 1h 10m from takeoff to landing.
How often does UAL1856 fly?
UAL1856 has been observed flying several times a week in our tracking data. We've recorded 238 flights under this callsign.
Is flight UAL1856 usually on time?
Across recent flights, UAL1856 arrives with an average 8-minute delay. 71% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL1856?
UAL1856 has been operated by 24 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL1856 live?
Yes. When UAL1856 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.