Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL400

Operated by UAL

Live map

Live map filtered to UAL400. Shown when the flight is currently airborne.

Route airports View route page →

Departure

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
03:02 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
180° / 11 kt
Visibility
10 SM
Ceiling
FEW 15,000 ft, SCT 22,000 ft
Temp / Dew
18°C / 9°C
Altimeter
30.17 inHg

Obs: 2026-08-28T08:53:00.000Z

Raw METAR / TAF 
METAR KDEN 280853Z 18011KT 10SM FEW150 SCT220 18/09 A3017 RMK AO2 SLP127 T01830094 56004

TAF KDEN 280855Z 2809/2912 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 95 Departures
flight_land 111 Arrivals

Arrival

IAD

No data available for IAD.

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 AAA58B AUS → IAD Jul 26, 20:25 UTCJul 26, 22:45 UTC2h 20m - -
2026-07-26 A12777 AUS → IAD Jul 26, 02:50 UTCJul 26, 07:45 UTC4h 56m - -
2026-07-26 A12777 AUS → IAD Jul 26, 02:45 UTCJul 26, 07:44 UTC4h 59m +20m -10m
2026-07-25 A61949 AUS → IAD Jul 25, 20:25 UTCJul 25, 23:45 UTC3h 20m - -
2026-07-25 A441EF AUS → IAD Jul 25, 03:05 UTCJul 25, 08:00 UTC4h 55m - -
2026-07-24 A5EA5C AUS → IAD Jul 24, 21:15 UTCJul 25, 00:40 UTC3h 25m - -
2026-07-23 A5FCEF AUS → IAD Jul 23, 21:55 UTCJul 24, 01:20 UTC3h 25m - -
2026-07-20 A61592 AUS → IAD Jul 20, 20:20 UTCJul 20, 23:45 UTC3h 25m - -
2026-07-20 A61592 AUS → IAD Jul 20, 20:26 UTCJul 20, 23:34 UTC3h 8m +14m -6m
2026-07-19 A5CC11 AUS → IAD Jul 19, 20:25 UTCJul 19, 23:45 UTC3h 20m - -
2026-07-19 A5D570 AUS → IAD Jul 19, 00:25 UTCJul 19, 03:25 UTC3h 0m - -
2026-07-18 A2B196 - Jul 18, 02:55 UTCJul 18, 07:55 UTC5h 0m - -
2026-07-18 A2B196 DEN → ANC Jul 18, 02:50 UTCJul 18, 07:49 UTC4h 59m +25m -18m
2026-07-17 A5DCDE - Jul 17, 20:25 UTCJul 17, 23:39 UTC3h 15m - -
2026-07-16 A5E44C - Jul 16, 20:39 UTCJul 16, 23:49 UTC3h 10m - -
2026-07-13 A59B5E - Jul 13, 20:25 UTCJul 13, 23:30 UTC3h 5m - -
2026-07-12 A2B12D - Jul 12, 21:05 UTCJul 13, 00:10 UTC3h 5m - -
2026-07-12 A123E3 - Jul 12, 02:50 UTCJul 12, 07:55 UTC5h 5m - -
2026-07-11 A5D570 - Jul 11, 20:35 UTCJul 11, 23:55 UTC3h 20m - -
2026-07-11 A44211 DEN → ANC Jul 11, 03:45 UTCJul 11, 08:35 UTC4h 50m - -
2026-07-11 A5FCEF - Jul 11, 01:50 UTCJul 11, 02:20 UTC30m - -
2026-07-10 A5FCEF - Jul 10, 20:35 UTCJul 11, 00:20 UTC3h 45m - -
2026-07-09 A61592 - Jul 9, 21:25 UTCJul 10, 01:40 UTC4h 15m - -
2026-07-06 A60814 - Jul 6, 20:50 UTCJul 7, 00:15 UTC3h 25m - -
2026-07-06 A60814 RIC → DEN Jul 6, 20:44 UTCJul 7, 00:12 UTC3h 28m +32m +12m
2026-07-05 A12778 - Jul 5, 20:55 UTCJul 6, 00:10 UTC3h 15m - -
2026-07-04 A0FBB7 DEN → ICT Jul 4, 20:18 UTCJul 4, 21:12 UTC54m +19m -11m
2026-07-04 A0FBB7 - Jul 4, 20:20 UTCJul 4, 21:15 UTC55m - -
2026-07-03 A53EE2 - Jul 3, 20:40 UTCJul 4, 00:15 UTC3h 35m - -
2026-07-03 A2B4EA DEN → ANC Jul 3, 02:45 UTCJul 3, 07:45 UTC5h 0m - -

Performance history

Flights tracked
118 showing last 30
Avg arrival delay
-7m
On-time arrival
100% 100% on time
Aircraft used
21

Monthly activity 4 months

Month Flights tracked
July 2026 31
June 2026 25
May 2026 37
April 2026 25

UAL400 frequently asked

Where does flight UAL400 fly?
UAL400 (UAL) flies from DEN to IAD. View the full route page.
How long is flight UAL400?
Based on observed flights, UAL400 takes on average 3h 30m from takeoff to landing.
How often does UAL400 fly?
UAL400 has been observed flying several times a week in our tracking data. We've recorded 118 flights under this callsign.
Is flight UAL400 usually on time?
Across recent flights, UAL400 arrives 7 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL400?
UAL400 has been operated by 21 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL400 live?
Yes. When UAL400 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.