Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL1204

Operated by United Airlines

Live map

Live map filtered to UAL1204. Shown when the flight is currently airborne.

Route airports View route page →

Departure

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
07:11 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
240° / 9 kt
Visibility
10 SM
Ceiling
FEW 10,000 ft, SCT 15,000 ft, SCT 22,000 ft
Temp / Dew
19°C / 9°C
Altimeter
30.17 inHg

Obs: 2026-08-28T12:53:00.000Z

Raw METAR / TAF 
METAR KDEN 281253Z 24009KT 10SM FEW100 SCT150 SCT220 19/09 A3017 RMK AO2 VIRGA SLP132 T01940089

TAF KDEN 281135Z 2812/2918 21009KT 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 FM291600 28007KT P6SM FEW110 SCT200

flight Live Traffic

flight_takeoff 427 Departures
flight_land 590 Arrivals

Arrival

SJC KSJC VFR

Norman Y. Mineta San Jose International Airport

San Jose, US

Local time
06:11 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
62 ft
Coordinates
37.3625, -121.9292

cloud Weather

Wind
350° / 3 kt
Visibility
10 SM
Ceiling
BKN 11,000 ft, OVC 13,000 ft
Temp / Dew
18°C / 14°C
Altimeter
29.93 inHg

Obs: 2026-08-28T12:53:00.000Z

Raw METAR / TAF 
METAR KSJC 281253Z 35003KT 10SM BKN110 OVC130 18/14 A2993 RMK AO2 SLP134 T01830139

TAF KSJC 281126Z 2812/2912 35004KT P6SM SKC FM282000 32008KT P6SM VCSH BKN050 OVC100 FM290200 32007KT P6SM BKN050

flight Live Traffic

flight_takeoff 39 Departures
flight_land 47 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A524E1 DEN → SJC Jul 26, 00:25 UTCJul 26, 02:15 UTC1h 50m - -
2026-07-26 A524E1 DEN → SJC Jul 26, 00:15 UTCJul 26, 02:08 UTC1h 53m +35m -16m
2026-07-25 A5D1B9 DEN → SJC Jul 25, 00:15 UTCJul 25, 02:05 UTC1h 50m - -
2026-07-25 A5D1B9 DEN → SJC Jul 25, 00:07 UTCJul 25, 02:00 UTC1h 53m +27m -4m
2026-07-24 A5B1A8 DEN → SJC Jul 24, 00:30 UTCJul 24, 02:20 UTC1h 50m - -
2026-07-23 A524E1 DEN → SJC Jul 23, 04:50 UTCJul 23, 07:05 UTC2h 15m - -
2026-07-23 A524E1 DEN → SJC Jul 23, 04:43 UTCJul 23, 06:54 UTC2h 11m +303m -8m
2026-07-22 A553CE DEN → SJC Jul 22, 00:30 UTCJul 22, 02:20 UTC1h 50m - -
2026-07-21 A61592 DEN → ATW Jul 21, 01:50 UTCJul 21, 03:35 UTC1h 45m - -
2026-07-20 A56A18 DEN → ATW Jul 20, 00:55 UTCJul 20, 02:45 UTC1h 50m - -
2026-07-19 A58DE0 DEN → ATW Jul 19, 00:35 UTCJul 19, 02:25 UTC1h 50m - -
2026-07-17 A61D00 DEN → ATW Jul 17, 23:55 UTCJul 18, 01:50 UTC1h 55m - -
2026-07-17 A59F15 DEN → ATW Jul 17, 00:07 UTCJul 17, 02:11 UTC2h 4m +27m -22m
2026-07-17 A59F15 DEN → ATW Jul 17, 00:25 UTCJul 17, 02:20 UTC1h 55m - -
2026-07-16 AC2ABD DEN → ATW Jul 16, 00:15 UTCJul 16, 02:05 UTC1h 50m - -
2026-07-14 AC2ABD DEN → ATW Jul 14, 23:55 UTCJul 15, 01:55 UTC2h 0m - -
2026-07-14 AB5056 DEN → ATW Jul 14, 00:20 UTCJul 14, 02:20 UTC2h 0m - -
2026-07-13 AC64CF DEN → ATW Jul 13, 00:01 UTCJul 13, 01:55 UTC1h 55m - -
2026-07-12 ABFF87 DEN → ATW Jul 12, 00:00 UTCJul 12, 01:47 UTC1h 47m +20m -14m
2026-07-12 ABFF87 DEN → ATW Jul 12, 00:01 UTCJul 12, 01:50 UTC1h 50m - -
2026-07-11 AB7067 DEN → ATW Jul 11, 01:30 UTCJul 11, 03:30 UTC2h 0m - -
2026-07-10 AC6118 DEN → ATW Jul 10, 02:50 UTCJul 10, 04:45 UTC1h 55m - -
2026-07-08 AB618B DEN → ATW Jul 8, 23:55 UTCJul 9, 01:50 UTC1h 55m - -
2026-07-08 AC4ACE DEN → ATW Jul 8, 00:05 UTCJul 8, 02:00 UTC1h 55m - -
2026-07-07 AC234F DEN → ATW Jul 7, 01:00 UTCJul 7, 02:45 UTC1h 45m - -
2026-07-06 AC6118 DEN → ATW Jul 6, 00:15 UTCJul 6, 02:05 UTC1h 50m - -
2026-07-05 AB8CC1 DEN → ATW Jul 5, 00:05 UTCJul 5, 01:55 UTC1h 50m - -
2026-07-04 AB3655 DEN → ATW Jul 4, 00:35 UTCJul 4, 02:20 UTC1h 45m - -
2026-07-03 A5ADF1 DEN → ATW Jul 3, 02:40 UTCJul 3, 04:30 UTC1h 50m - -
2026-07-02 AC033E DEN → ATW Jul 2, 00:25 UTCJul 2, 02:05 UTC1h 40m - -

Performance history

Flights tracked
128 showing last 30
Avg arrival delay
-13m
On-time arrival
100% 100% on time
Aircraft used
22

Monthly activity 4 months

Month Flights tracked
July 2026 31
June 2026 34
May 2026 36
April 2026 27

UAL1204 frequently asked

Where does flight UAL1204 fly?
UAL1204 (United Airlines) flies from DEN to SJC. View the full route page.
How long is flight UAL1204?
Based on observed flights, UAL1204 takes on average 1h 53m from takeoff to landing.
How often does UAL1204 fly?
UAL1204 has been observed flying several times a week in our tracking data. We've recorded 128 flights under this callsign.
Is flight UAL1204 usually on time?
Across recent flights, UAL1204 arrives 13 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL1204?
UAL1204 has been operated by 22 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL1204 live?
Yes. When UAL1204 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.