Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL4

Operated by United Airlines

Live map

Live map filtered to UAL4. Shown when the flight is currently airborne.

Route airports View route page →

Departure

LHR EGLL VFR

London Heathrow Airport

London, GB

Local time
08:59 GMT+1
Timezone
Europe/London
Type
Large Airport
Elevation
83 ft
Coordinates
51.4707, -0.4599

cloud Weather

Wind
90° / 3 kt
Visibility
6 SM
Ceiling
CLR
Temp / Dew
21°C / 9°C
Altimeter
30.15 inHg

Obs: 2026-05-30T07:50:00.000Z

Raw METAR / TAF 
METAR EGLL 300750Z AUTO 09003KT 040V210 9999 NCD 21/09 Q1021

TAF EGLL 300456Z 3006/3112 VRB04KT CAVOK BECMG 3014/3017 28010KT BECMG 3104/3107 BKN030 PROB30 TEMPO 3105/3108 BKN014

flight Live Traffic

flight_takeoff 24 Departures
flight_land 35 Arrivals

Arrival

IAH KIAH VFR

George Bush Intercontinental Airport

Houston, US

Local time
02:59 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
97 ft
Coordinates
29.9844, -95.3414

cloud Weather

Wind
180° / 3 kt
Visibility
10 SM
Ceiling
FEW 25,000 ft
Temp / Dew
25°C / 23°C
Altimeter
29.87 inHg

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

Raw METAR / TAF 
METAR KIAH 300653Z 18003KT 10SM FEW250 25/23 A2987 RMK AO2 SLP113 T02500228

TAF KIAH 300520Z 3006/3112 19005KT P6SM FEW045 BKN250 FM301100 VRB03KT P6SM SCT010 BKN028 FM301500 21006KT P6SM FEW015 SCT030 FM301800 17009KT P6SM SCT040 BKN250 FM310300 18006KT P6SM FEW030 BKN250 FM311000 00000KT P6SM BKN030

flight Live Traffic

flight_takeoff 47 Departures
flight_land 57 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-29 A2007C LHR → IAH May 29, 12:55 UTCMay 29, 22:10 UTC9h 15m - -
2026-05-28 A1FCC5 LHR → IAH May 28, 13:10 UTCMay 28, 22:20 UTC9h 10m - -
2026-05-28 A1FCC5 LHR → IAH May 28, 12:55 UTCMay 28, 22:16 UTC9h 21m +15m -5m
2026-05-27 A1D546 LHR → IAH May 27, 13:40 UTCMay 27, 23:10 UTC9h 30m - -
2026-05-26 A1FCC5 LHR → IAH May 26, 13:15 UTCMay 26, 22:54 UTC9h 40m - -
2026-05-25 A1D546 LHR → IAH May 25, 13:05 UTCMay 25, 22:49 UTC9h 44m - -
2026-05-24 AAD012 LHR → IAH May 24, 13:00 UTCMay 24, 21:50 UTC8h 50m - -
2026-05-23 AACC5B LHR → IAH May 23, 13:00 UTCMay 23, 14:00 UTC1h 0m - -
2026-05-23 AACC5B LHR → IAH May 23, 13:05 UTCMay 23, 22:57 UTC9h 52m +25m +3m
2026-05-22 AAD780 LHR → IAH May 22, 13:10 UTCMay 22, 22:40 UTC9h 30m - -
2026-05-21 AAD780 LHR → IAH May 21, 13:01 UTCMay 21, 22:40 UTC9h 40m - -
2026-05-21 AAD780 LHR → IAH May 21, 13:05 UTCMay 21, 22:31 UTC9h 26m +25m -7m
2026-05-20 AAC8A4 LHR → IAH May 20, 13:10 UTCMay 20, 23:10 UTC10h 0m - -
2026-05-19 AAC8A4 LHR → IAH May 19, 13:10 UTCMay 19, 22:55 UTC9h 45m - -
2026-05-18 AABD7F LHR → IAH May 18, 12:40 UTCMay 18, 22:10 UTC9h 29m - -
2026-05-17 AACC5B LHR → IAH May 17, 13:01 UTCMay 17, 22:40 UTC9h 40m - -
2026-05-17 AACC5B LHR → IAH May 17, 13:05 UTCMay 17, 22:37 UTC9h 32m +25m -2m
2026-05-16 A1D8FD LHR → IAH May 16, 13:01 UTCMay 16, 22:45 UTC9h 45m - -
2026-05-15 A1F90E LHR → IAH May 15, 12:50 UTCMay 15, 22:25 UTC9h 34m - -
2026-05-14 A1D18F LHR → IAH May 14, 14:01 UTCMay 14, 23:20 UTC9h 20m - -
2026-05-13 A1D18F LHR → IAH May 13, 14:05 UTCMay 13, 23:50 UTC9h 45m - -
2026-05-12 A1AA10 LHR → IAH May 12, 12:55 UTCMay 12, 22:40 UTC9h 45m - -
2026-05-11 AAA4DC LHR → IAH May 11, 13:10 UTCMay 11, 22:35 UTC9h 25m - -
2026-05-10 AACC5B LHR → IAH May 10, 13:05 UTCMay 10, 23:05 UTC10h 0m - -
2026-05-10 AACC5B LHR → IAH May 10, 13:05 UTCMay 10, 23:00 UTC9h 55m +25m +9m
2026-05-09 AACC5B LHR → IAH May 9, 13:10 UTCMay 9, 23:00 UTC9h 50m - -
2026-05-08 AACC5B LHR → IAH May 8, 13:10 UTCMay 8, 23:05 UTC9h 55m - -
2026-05-08 AACC5B LHR → IAH May 8, 13:05 UTCMay 8, 23:02 UTC9h 57m +25m +3m
2026-05-07 AAA893 LHR → IAH May 7, 12:50 UTCMay 7, 22:50 UTC10h 0m - -
2026-05-06 A1A2A2 LHR → IAH May 6, 12:45 UTCMay 6, 22:50 UTC10h 4m - -

Performance history

Flights tracked
77 showing last 30
Avg arrival delay
on time
On-time arrival
100% 100% on time
Aircraft used
15

Monthly activity 2 months

Month Flights tracked
May 2026 37
April 2026 40

UAL4 frequently asked

Where does flight UAL4 fly?
UAL4 (United Airlines) flies from LHR to IAH. View the full route page.
How long is flight UAL4?
Based on observed flights, UAL4 takes on average 9h 21m from takeoff to landing.
How often does UAL4 fly?
UAL4 has been observed flying several times a week in our tracking data. We've recorded 77 flights under this callsign.
Is flight UAL4 usually on time?
Across recent flights, UAL4 arrives 0 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL4?
UAL4 has been operated by 15 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL4 live?
Yes. When UAL4 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.