Apparatus

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flight_takeoff Flight

UAL400

Operated by UAL

Live map

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

Upcoming flights 1 scheduled

From To Scheduled departure Estimated arrival Status
DEN KANC May 31, 02:45 AM UTC May 31, 07:55 AM UTC PLANNED

Route airports View route page →

Departure

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
21:13 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
340° / 8 kt
Visibility
10 SM
Ceiling
FEW 7,000 ft, SCT 12,000 ft, BKN 20,000 ft
Temp / Dew
18°C / 8°C
Altimeter
29.80 inHg

Obs: 2026-05-30T02:53:00.000Z

Raw METAR / TAF 
METAR KDEN 300253Z 34008KT 10SM FEW070 SCT120 BKN200 18/08 A2980 RMK AO2 SLP025 T01830078 52002

TAF KDEN 300253Z 3003/3106 34008KT P6SM FEW070 SCT120 BKN200 FM300600 32007KT P6SM FEW100 SCT200 FM300900 25006KT P6SM FEW100 SCT200 FM301400 28009KT P6SM SCT180 FM302100 31012KT P6SM VCSH SCT100 PROB30 3021/3101 VRB15G25KT FM310300 27013KT P6SM FEW080 SCT100

flight Live Traffic

flight_takeoff 493 Departures
flight_land 412 Arrivals

Arrival

IAD

No data available for IAD.

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-29 A12756 AUS → IAD May 29, 03:50 UTCMay 29, 08:27 UTC4h 37m +85m -3m
2026-05-29 A12756 AUS → IAD May 29, 03:40 UTCMay 29, 08:35 UTC4h 55m - -
2026-05-28 A43EA7 AUS → IAD May 28, 02:50 UTCMay 28, 07:45 UTC4h 55m - -
2026-05-27 A43EA7 AUS → IAD May 27, 02:34 UTCMay 27, 07:35 UTC5h 0m - -
2026-05-26 A8E9FD AUS → IAD May 26, 02:49 UTCMay 26, 07:49 UTC5h 0m - -
2026-05-25 A2B17A AUS → IAD May 25, 02:45 UTCMay 25, 07:42 UTC4h 57m +20m +8m
2026-05-25 A2B17A AUS → IAD May 25, 02:40 UTCMay 25, 07:45 UTC5h 5m - -
2026-05-24 A2B110 AUS → IAD May 24, 02:35 UTCMay 24, 07:55 UTC5h 20m - -
2026-05-23 A12758 AUS → IAD May 23, 03:15 UTCMay 23, 08:20 UTC5h 5m - -
2026-05-23 A12758 AUS → IAD May 23, 03:15 UTCMay 23, 08:20 UTC5h 5m +50m +8m
2026-05-22 A2B10F AUS → IAD May 22, 03:00 UTCMay 22, 08:10 UTC5h 10m - -
2026-05-20 A24C99 AUS → IAD May 20, 12:10 UTCMay 20, 15:20 UTC3h 10m - -
2026-05-19 A24C99 AUS → IAD May 19, 12:05 UTCMay 19, 15:25 UTC3h 20m - -
2026-05-18 A135CB AUS → IAD May 18, 12:20 UTCMay 18, 15:35 UTC3h 15m - -
2026-05-17 A24C99 AUS → IAD May 17, 12:05 UTCMay 17, 14:15 UTC2h 10m - -
2026-05-17 A24C99 AUS → IAD May 17, 12:19 UTCMay 17, 15:21 UTC3h 2m +19m +1m
2026-05-16 A135CB AUS → IAD May 16, 12:11 UTCMay 16, 15:31 UTC3h 20m - -
2026-05-15 A135CB AUS → IAD May 15, 12:10 UTCMay 15, 15:35 UTC3h 24m - -
2026-05-14 A24C99 AUS → IAD May 14, 12:10 UTCMay 14, 15:30 UTC3h 20m - -
2026-05-14 A24C99 AUS → IAD May 14, 12:19 UTCMay 14, 15:29 UTC3h 10m +19m +5m
2026-05-13 A24C99 AUS → IAD May 13, 12:10 UTCMay 13, 15:25 UTC3h 15m - -
2026-05-12 A2C338 AUS → IAD May 12, 15:10 UTCMay 12, 18:25 UTC3h 15m - -
2026-05-11 A224F9 AUS → IAD May 11, 12:20 UTCMay 11, 15:35 UTC3h 15m - -
2026-05-10 A13608 AUS → IAD May 10, 12:10 UTCMay 10, 15:19 UTC3h 10m - -
2026-05-10 A13608 AUS → IAD May 10, 12:19 UTCMay 10, 15:18 UTC2h 59m +19m -1m
2026-05-09 A0E6C6 AUS → IAD May 9, 12:10 UTCMay 9, 15:20 UTC3h 10m - -
2026-05-08 A097CE AUS → IAD May 8, 12:30 UTCMay 8, 15:40 UTC3h 10m - -
2026-05-07 A097CE AUS → IAD May 7, 12:05 UTCMay 7, 15:00 UTC2h 55m - -
2026-05-06 A097CE AUS → IAD May 6, 12:20 UTCMay 6, 15:15 UTC2h 55m - -
2026-05-05 A097CE AUS → IAD May 5, 12:05 UTCMay 5, 15:25 UTC3h 20m - -

Performance history

Flights tracked
61 showing last 30
Avg arrival delay
+3m
On-time arrival
100% 100% on time
Aircraft used
14

Monthly activity 2 months

Month Flights tracked
May 2026 36
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 50m 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 61 flights under this callsign.
Is flight UAL400 usually on time?
Across recent flights, UAL400 arrives with an average 3-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL400?
UAL400 has been operated by 14 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.