Apparatus

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flight_takeoff Flight

UAL4203

Operated by United Airlines

Live map

Live map filtered to UAL4203. Shown when the flight is currently airborne.

Route airports View route page →

Departure

MIA KMIA VFR

Miami International Airport

Miami, US

Local time
01:56 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
8 ft
Coordinates
25.7960, -80.2898

cloud Weather

Wind
200° / 4 kt
Visibility
10 SM
Ceiling
SCT 4,500 ft, BKN 11,000 ft
Temp / Dew
26°C / 24°C
Altimeter
29.94 inHg

Obs: 2026-05-30T04:53:00.000Z

Raw METAR / TAF 
METAR KMIA 300453Z 20004KT 10SM SCT045 BKN110 26/24 A2994 RMK AO2 RAE00 SLP139 P0000 T02560239 403330239 $

TAF KMIA 300520Z 3006/3112 23004KT P6SM FEW040 BKN160 FM301500 28006KT P6SM SCT070 BKN100

flight Live Traffic

flight_takeoff 142 Departures
flight_land 105 Arrivals

Arrival

IAH KIAH VFR

George Bush Intercontinental Airport

Houston, US

Local time
00:56 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
97 ft
Coordinates
29.9844, -95.3414

cloud Weather

Wind
190° / 4 kt
Visibility
10 SM
Ceiling
CLR
Temp / Dew
26°C / 23°C
Altimeter
29.88 inHg

Obs: 2026-05-30T04:53:00.000Z

Raw METAR / TAF 
METAR KIAH 300453Z 19004KT 10SM CLR 26/23 A2988 RMK AO2 SLP118 T02610228

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 211 Departures
flight_land 165 Arrivals

Recent history last 8

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-18 A46D4E MIA → IAH May 18, 19:40 UTCMay 18, 20:15 UTC35m - -
2026-05-01 A11F9D MIA → IAH May 1, 10:05 UTCMay 1, 16:40 UTC6h 35m - -
2026-05-01 A11F9D MIA → IAH May 1, 10:17 UTCMay 1, 16:40 UTC6h 23m +17m +7m
2026-04-27 AAA125 MIA → IAH Apr 27, 03:00 UTCApr 27, 03:50 UTC50m - -
2026-04-23 A16E7D MIA → IAH Apr 23, 21:25 UTCApr 23, 22:25 UTC1h 0m - -
2026-04-17 A0AD3E MIA → IAH Apr 17, 13:30 UTCApr 17, 15:15 UTC1h 44m - -
2026-04-12 A747CB - Apr 12, 16:12 UTCApr 12, 23:05 UTC6h 53m +282m +7m
2026-04-12 A747CB - Apr 12, 17:15 UTCApr 12, 17:45 UTC30m - -

Performance history

Flights tracked
8
Avg arrival delay
+7m
On-time arrival
100% 100% on time
Aircraft used
6

Monthly activity 2 months

Month Flights tracked
May 2026 3
April 2026 5

UAL4203 frequently asked

Where does flight UAL4203 fly?
UAL4203 (United Airlines) flies from MIA to IAH. View the full route page.
How long is flight UAL4203?
Based on observed flights, UAL4203 takes on average 3h 4m from takeoff to landing.
How often does UAL4203 fly?
UAL4203 has been observed flying several times a week in our tracking data. We've recorded 8 flights under this callsign.
Is flight UAL4203 usually on time?
Across recent flights, UAL4203 arrives with an average 7-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL4203?
UAL4203 has been operated by 6 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL4203 live?
Yes. When UAL4203 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.