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
01:36 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
260° / 8 kt
Visibility
10 SM
Ceiling
FEW 10,000 ft, FEW 20,000 ft
Temp / Dew
14°C / 8°C
Altimeter
29.80 inHg

Obs: 2026-05-30T06:53:00.000Z

Raw METAR / TAF 
METAR KDEN 300653Z 26008KT 10SM FEW100 FEW200 14/08 A2980 RMK AO2 SLP015 T01390078 402830128

TAF KDEN 300538Z 3006/3112 VRB06KT P6SM FEW100 SCT200 FM300900 25006KT P6SM FEW100 SCT200 FM301400 28009KT P6SM SCT180 FM302100 33010KT P6SM VCSH SCT100 PROB30 3021/3101 VRB15G25KT -SHRA FM310300 27013KT P6SM FEW080 SCT100 FM310700 23011KT P6SM FEW100 SCT200

flight Live Traffic

flight_takeoff 157 Departures
flight_land 137 Arrivals

Arrival

SFO KSFO MVFR

San Francisco International Airport

San Francisco, US

Local time
00:36 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
270° / 10 kt
Visibility
10 SM
Ceiling
OVC 1,000 ft
Temp / Dew
13°C / 11°C
Altimeter
30.11 inHg

Obs: 2026-05-30T06:56:00.000Z

Raw METAR / TAF 
METAR KSFO 300656Z 27010KT 10SM OVC010 13/11 A3011 RMK AO2 SLP195 T01280106

TAF KSFO 300520Z 3006/3112 26009KT P6SM OVC008 FM301000 27006KT P6SM OVC012 FM301800 28012KT P6SM SKC FM302300 27022KT P6SM SKC FM310600 28012KT P6SM SKC

flight Live Traffic

flight_takeoff 236 Departures
flight_land 160 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-29 A85F29 DEN → SFO May 29, 16:15 UTCMay 29, 17:50 UTC1h 35m - -
2026-05-29 AC55F3 DEN → SFO May 29, 11:10 UTCMay 29, 12:00 UTC50m - -
2026-05-28 A12734 DEN → SFO May 28, 16:50 UTCMay 28, 18:30 UTC1h 40m - -
2026-05-28 AC523C DEN → SFO May 28, 11:10 UTCMay 28, 12:00 UTC50m - -
2026-05-27 A41E29 DEN → SFO May 27, 16:25 UTCMay 27, 18:00 UTC1h 35m - -
2026-05-27 A12A82 DEN → SFO May 27, 11:10 UTCMay 27, 12:05 UTC55m - -
2026-05-26 A81000 DEN → SFO May 26, 16:50 UTCMay 26, 18:24 UTC1h 35m - -
2026-05-26 A81000 DEN → SFO May 26, 16:31 UTCMay 26, 18:24 UTC1h 53m +40m -19m
2026-05-26 A5E44C DEN → SFO May 26, 11:09 UTCMay 26, 12:10 UTC1h 0m - -
2026-05-25 AAA267 DEN → SFO May 25, 16:35 UTCMay 25, 18:05 UTC1h 30m - -
2026-05-25 AC5D61 DEN → SFO May 25, 11:15 UTCMay 25, 12:10 UTC55m - -
2026-05-24 A609D4 DEN → SFO May 24, 16:45 UTCMay 24, 17:50 UTC1h 5m - -
2026-05-24 A609D4 DEN → SFO May 24, 15:51 UTCMay 24, 17:45 UTC1h 54m +291m +30m
2026-05-23 A12A7B DEN → SFO May 23, 16:30 UTCMay 23, 18:05 UTC1h 35m - -
2026-05-23 A5F581 DEN → SFO May 23, 11:15 UTCMay 23, 12:10 UTC55m - -
2026-05-23 A5F581 DEN → SFO May 23, 11:20 UTCMay 23, 12:02 UTC42m -271m +15m
2026-05-22 A8D4AD DEN → SFO May 22, 16:15 UTCMay 22, 17:55 UTC1h 40m - -
2026-05-22 AC523C DEN → SFO May 22, 11:20 UTCMay 22, 12:05 UTC46m - -
2026-05-21 A12403 DEN → SFO May 21, 18:05 UTCMay 21, 19:35 UTC1h 30m - -
2026-05-21 AC033E DEN → SFO May 21, 11:10 UTCMay 21, 12:05 UTC55m - -
2026-05-21 AC033E DEN → SFO May 21, 11:20 UTCMay 21, 11:49 UTC29m -271m +20m
2026-05-20 A445F0 DEN → SFO May 20, 16:05 UTCMay 20, 17:40 UTC1h 35m - -
2026-05-20 AB7B8C DEN → SFO May 20, 11:10 UTCMay 20, 12:35 UTC1h 25m - -
2026-05-19 A44984 DEN → SFO May 19, 16:00 UTCMay 19, 17:35 UTC1h 35m - -
2026-05-19 A9D5A2 DEN → SFO May 19, 13:00 UTCMay 19, 14:10 UTC1h 10m - -
2026-05-18 A4495C DEN → SFO May 18, 17:10 UTCMay 18, 18:55 UTC1h 44m - -
2026-05-18 A533BD DEN → SFO May 18, 11:20 UTCMay 18, 12:40 UTC1h 20m - -
2026-05-17 A12B0A DEN → SFO May 17, 16:15 UTCMay 17, 17:45 UTC1h 30m - -
2026-05-17 AC55F3 DEN → SFO May 17, 11:15 UTCMay 17, 12:30 UTC1h 15m - -
2026-05-16 A12AC8 DEN → SFO May 16, 16:11 UTCMay 16, 17:29 UTC1h 18m +31m -3m

Performance history

Flights tracked
98 showing last 30
Avg arrival delay
+9m
On-time arrival
60% 60% on time
Aircraft used
24

Monthly activity 2 months

Month Flights tracked
May 2026 73
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 17m 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 98 flights under this callsign.
Is flight UAL1856 usually on time?
Across recent flights, UAL1856 arrives with an average 9-minute delay. 60% 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.