Apparatus

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flight_takeoff Flight

UAL543

Operated by United Airlines

Live map

Live map filtered to UAL543. Shown when the flight is currently airborne.

Route airports View route page →

Departure

IAH KIAH VFR

George Bush Intercontinental Airport

Houston, US

Local time
13:00 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
97 ft
Coordinates
29.9844, -95.3414

cloud Weather

Wind
170° / 6 kt
Visibility
10 SM
Ceiling
FEW 3,500 ft, FEW 6,500 ft, FEW 25,000 ft
Temp / Dew
33°C / 23°C
Altimeter
30.04 inHg

Obs: 2026-08-28T16:53:00.000Z

Raw METAR / TAF 
METAR KIAH 281653Z 17006KT 10SM FEW035 FEW065 FEW250 33/23 A3004 RMK AO2 SLP173 T03330233

TAF KIAH 281720Z 2818/2924 VRB05KT P6SM SCT030 SCT250 FM282000 13007KT P6SM VCSH SCT050 SCT250 PROB30 2821/2824 VRB15G25KT -TSRA BKN050CB FM290000 VRB05KT P6SM FEW030

Arrival

MCO KMCO VFR

Orlando International Airport

Orlando, US

Local time
14:00 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
96 ft
Coordinates
28.4294, -81.3090

cloud Weather

Wind
170° / 3 kt
Visibility
10 SM
Ceiling
FEW 4,500 ft, FEW 25,000 ft
Temp / Dew
32°C / 22°C
Altimeter
30.10 inHg

Obs: 2026-08-28T16:53:00.000Z

Raw METAR / TAF 
METAR KMCO 281653Z 17003KT 10SM FEW045 FEW250 32/22 A3010 RMK CB DSNT NE-SE SW-NW MOV NE

TAF KMCO 281721Z 2818/2924 25009KT P6SM VCSH SCT050 SCT250 FM281900 23009KT P6SM VCTS SCT040CB SCT250 TEMPO 2820/2824 VRB15G25KT 3SM TSRA BKN030CB FM290000 11006KT P6SM VCSH SCT050 BKN120 BKN250 FM290200 VRB04KT P6SM FEW050 SCT120 BKN250 FM291500 13005KT P6SM FEW040 SCT250 FM291900 09009KT P6SM VCTS SCT050CB SCT250

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 AA8114 IAH → MCO Jul 26, 16:25 UTCJul 26, 20:10 UTC3h 45m - -
2026-07-26 AA8114 IAH → MCO Jul 26, 16:12 UTCJul 26, 20:10 UTC3h 58m +47m +8m
2026-07-25 A76F43 IAH → MCO Jul 25, 16:15 UTCJul 25, 20:10 UTC3h 55m - -
2026-07-25 AB540D IAH → MCO Jul 25, 00:50 UTCJul 25, 02:10 UTC1h 20m - -
2026-07-24 A76F6D IAH → MCO Jul 24, 16:20 UTCJul 24, 20:30 UTC4h 10m - -
2026-07-24 AB9078 IAH → MCO Jul 24, 01:35 UTCJul 24, 02:55 UTC1h 20m - -
2026-07-23 A76F6D IAH → MCO Jul 23, 16:35 UTCJul 23, 20:15 UTC3h 40m - -
2026-07-23 AB9078 IAH → MCO Jul 23, 00:50 UTCJul 23, 02:15 UTC1h 25m - -
2026-07-23 AB9078 IAH → MCO Jul 23, 01:01 UTCJul 23, 02:11 UTC1h 10m +110m +12m
2026-07-22 A1F2B1 IAH → MCO Jul 22, 16:25 UTCJul 22, 20:40 UTC4h 15m - -
2026-07-21 AB7067 IAH → MCO Jul 21, 23:35 UTCJul 22, 01:05 UTC1h 30m - -
2026-07-21 AA1368 IAH → MCO Jul 21, 16:25 UTCJul 21, 20:05 UTC3h 40m - -
2026-07-21 ABB440 IAH → MCO Jul 21, 01:00 UTCJul 21, 02:25 UTC1h 25m - -
2026-07-20 AA3AE5 IAH → MCO Jul 20, 16:40 UTCJul 20, 20:25 UTC3h 45m - -
2026-07-19 A5CE02 IAH → MCO Jul 19, 23:35 UTCJul 20, 01:00 UTC1h 25m - -
2026-07-19 A5CE02 IAH → MCO Jul 19, 23:46 UTCJul 20, 00:56 UTC1h 10m +35m +1m
2026-07-19 AA1368 IAH → MCO Jul 19, 15:56 UTCJul 19, 19:31 UTC3h 35m +31m -5m
2026-07-19 AA1368 IAH → MCO Jul 19, 15:50 UTCJul 19, 19:35 UTC3h 45m - -
2026-07-17 AC2706 IAH → MCO Jul 17, 23:25 UTCJul 18, 00:45 UTC1h 20m - -
2026-07-17 A747CB IAH → MCO Jul 17, 16:44 UTCJul 17, 20:20 UTC3h 35m - -
2026-07-16 A76F67 - Jul 16, 22:45 UTCJul 17, 02:25 UTC3h 40m - -
2026-07-15 AB1DB2 - Jul 15, 23:20 UTCJul 16, 00:50 UTC1h 30m - -
2026-07-15 A76F67 - Jul 15, 16:35 UTCJul 15, 20:15 UTC3h 40m - -
2026-07-15 AB3A0C SFO → SLC Jul 15, 00:26 UTCJul 15, 01:46 UTC1h 20m +75m -13m
2026-07-15 AB3A0C SFO → SLC Jul 15, 00:25 UTCJul 15, 01:55 UTC1h 30m - -
2026-07-14 A0B7BA ORD → SFO Jul 14, 16:17 UTCJul 14, 19:47 UTC3h 30m +52m +16m
2026-07-14 A0B7BA ORD → SFO Jul 14, 16:10 UTCJul 14, 19:45 UTC3h 35m - -
2026-07-13 A3D2C0 ORD → SFO Jul 13, 22:25 UTCJul 14, 02:00 UTC3h 35m - -
2026-07-12 AAEB0E SFO → SLC Jul 12, 23:45 UTCJul 13, 01:10 UTC1h 25m - -
2026-07-12 AA8A07 ORD → SFO Jul 12, 16:05 UTCJul 12, 19:55 UTC3h 50m - -

Performance history

Flights tracked
283 showing last 30
Avg arrival delay
+3m
On-time arrival
83% 83% on time
Aircraft used
20

Monthly activity 4 months

Month Flights tracked
July 2026 58
June 2026 93
May 2026 84
April 2026 48

UAL543 frequently asked

Where does flight UAL543 fly?
UAL543 (United Airlines) flies from IAH to MCO. View the full route page.
How long is flight UAL543?
Based on observed flights, UAL543 takes on average 2h 43m from takeoff to landing.
How often does UAL543 fly?
UAL543 has been observed flying several times a week in our tracking data. We've recorded 283 flights under this callsign.
Is flight UAL543 usually on time?
Across recent flights, UAL543 arrives with an average 3-minute delay. 83% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL543?
UAL543 has been operated by 20 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL543 live?
Yes. When UAL543 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.