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
12:59 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
200° / 13 kt
Visibility
10 SM
Ceiling
FEW 9,000 ft, FEW 13,000 ft
Temp / Dew
24°C / -1°C
Altimeter
29.88 inHg

Obs: 2026-10-12T17:53:00.000Z

Raw METAR / TAF 
METAR KDEN 121753Z 20013KT 10SM FEW090 FEW130 24/M01 A2988 RMK AO2 SLP035 T02441011 10250 20144 58001

TAF KDEN 121731Z 1218/1324 20014G22KT P6SM FEW090 FEW130 FM130100 22012G20KT P6SM FEW120 FM130500 33010KT P6SM FEW020 SCT040 FM131000 34008KT P6SM BKN015 BKN030 FM131400 05007KT P6SM BKN010 BKN030 FM131700 07007KT P6SM SCT020 BKN040 FM132000 07010KT P6SM SCT090 SCT120

flight Live Traffic

flight_takeoff 355 Departures
flight_land 357 Arrivals

Arrival

SJC KSJC VFR

Norman Y. Mineta San Jose International Airport

San Jose, US

Local time
11:59 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
62 ft
Coordinates
37.3625, -121.9292

cloud Weather

Wind
0° / 0 kt
Visibility
10 SM
Ceiling
CLR
Temp / Dew
17°C / 6°C
Altimeter
29.91 inHg

Obs: 2026-10-12T17:53:00.000Z

Raw METAR / TAF 
METAR KSJC 121753Z 00000KT 10SM CLR 17/06 A2991 RMK AO2 SLP129 T01720061 10172 20106 51010

TAF KSJC 121725Z 1218/1318 19004KT P6SM SKC FM122000 32010KT P6SM SKC FM130400 14003KT P6SM SKC

flight Live Traffic

flight_takeoff 62 Departures
flight_land 105 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.