Apparatus

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flight_takeoff Flight

UAL879

Operated by United Airlines

Live map

Live map filtered to UAL879. Shown when the flight is currently airborne.

Route airports View route page →

Departure

LHR EGLL MVFR

London Heathrow Airport

London, GB

Local time
16:16 GMT+1
Timezone
Europe/London
Type
Large Airport
Elevation
83 ft
Coordinates
51.4707, -0.4599

cloud Weather

Wind
170° / 11 kt
Visibility
6 SM
Ceiling
OVC 1,100 ft
Temp / Dew
18°C / 15°C
Altimeter
29.91 inHg

Obs: 2026-10-12T14:50:00.000Z

Raw METAR / TAF 
METAR EGLL 121450Z AUTO 17011KT 9999 OVC011 18/15 Q1013

TAF EGLL 121055Z 1212/1318 15008KT 9999 BKN016 BECMG 1212/1214 BKN012 TEMPO 1212/1222 6000 -DZRA PROB30 TEMPO 1212/1221 3000 DZ BKN006 BECMG 1218/1221 21010KT TEMPO 1221/1302 FEW012 BKN016 TEMPO 1302/1307 6000 -DZ BKN008 PROB30 TEMPO 1302/1306 3000 DZ BR BKN004 BECMG 1307/1309 27013KT BKN020 TEMPO 1308/1312 5000 RA BKN014 PROB30 TEMPO 1308/1316 27015G28KT PROB30 TEMPO 1308/1311 4000 +SHRA BECMG 1309/1312 FEW030

flight Live Traffic

flight_takeoff 34 Departures
flight_land 16 Arrivals

Arrival

IAH KIAH VFR

George Bush Intercontinental Airport

Houston, US

Local time
10:16 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
97 ft
Coordinates
29.9844, -95.3414

cloud Weather

Wind
110° / 6 kt
Visibility
10 SM
Ceiling
SCT 2,800 ft, OVC 23,000 ft
Temp / Dew
27°C / 23°C
Altimeter
30.05 inHg

Obs: 2026-10-12T14:53:00.000Z

Raw METAR / TAF 
METAR KIAH 121453Z 11006KT 10SM SCT028 OVC230 27/23 A3005 RMK AO2 SLP174 T02720233 53008

TAF KIAH 121447Z 1215/1318 12006KT P6SM SCT025 BKN250 FM121600 14012KT P6SM SCT035 BKN250 PROB30 1218/1221 -SHRA FM122100 14013G20KT P6SM SCT100 FM130300 14006KT P6SM SCT015 OVC050 TEMPO 1310/1313 OVC015

flight Live Traffic

flight_takeoff 206 Departures
flight_land 212 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 AACC5B LHR → IAH Jul 26, 09:20 UTCJul 26, 18:45 UTC9h 25m - -
2026-07-25 AAA125 LHR → IAH Jul 25, 10:45 UTCJul 25, 20:10 UTC9h 25m - -
2026-07-25 AAA125 LHR → IAH Jul 25, 09:25 UTCJul 25, 20:05 UTC10h 40m +25m +88m
2026-07-24 A43667 LHR → IAH Jul 24, 09:40 UTCJul 24, 18:50 UTC9h 10m - -
2026-07-24 A43667 LHR → IAH Jul 24, 09:40 UTCJul 24, 18:48 UTC9h 8m +40m -11m
2026-07-23 A1AA10 LHR → IAH Jul 23, 09:35 UTCJul 23, 18:50 UTC9h 15m - -
2026-07-23 A1AA10 LHR → IAH Jul 23, 09:25 UTCJul 23, 18:51 UTC9h 26m +25m -2m
2026-07-21 AAC136 LHR → IAH Jul 21, 23:35 UTCJul 22, 19:05 UTC19h 30m - -
2026-07-21 AAC136 LHR → IAH Jul 21, 21:55 UTCJul 22, 19:05 UTC21h 10m - -
2026-07-21 A1D18F - Jul 21, 09:30 UTCJul 21, 18:55 UTC9h 25m - -
2026-07-20 A1A2A2 - Jul 20, 10:10 UTCJul 20, 19:20 UTC9h 10m - -
2026-07-20 A1A2A2 LHR → IAH Jul 20, 10:00 UTCJul 20, 19:08 UTC9h 8m +60m -17m
2026-07-19 AAA125 - Jul 19, 13:05 UTCJul 19, 22:15 UTC9h 10m - -
2026-07-18 AA92FC - Jul 18, 09:30 UTCJul 18, 18:55 UTC9h 25m - -
2026-07-17 A2007C - Jul 17, 09:30 UTCJul 17, 18:50 UTC9h 20m - -
2026-07-16 A75103 - Jul 16, 09:40 UTCJul 16, 18:59 UTC9h 20m - -
2026-07-15 AA6BC0 - Jul 15, 10:05 UTCJul 15, 19:35 UTC9h 30m - -
2026-07-14 AA99B7 - Jul 14, 09:50 UTCJul 14, 19:10 UTC9h 20m - -
2026-07-13 A20433 - Jul 13, 10:05 UTCJul 13, 19:45 UTC9h 40m - -
2026-07-12 A20433 - Jul 12, 09:50 UTCJul 12, 19:01 UTC9h 10m - -
2026-07-11 A1A2A2 LHR → IAH Jul 11, 09:25 UTCJul 11, 19:03 UTC9h 38m +25m +2m
2026-07-11 A1A2A2 - Jul 11, 09:25 UTCJul 11, 19:05 UTC9h 40m - -
2026-07-10 AA92FB - Jul 10, 09:45 UTCJul 10, 19:15 UTC9h 30m - -
2026-07-09 AA6B9D - Jul 9, 09:20 UTCJul 9, 18:50 UTC9h 30m - -
2026-07-08 AA9D6E - Jul 8, 09:30 UTCJul 8, 18:55 UTC9h 25m - -
2026-07-07 A1FCC5 - Jul 7, 09:45 UTCJul 7, 19:00 UTC9h 15m - -
2026-07-05 A1A2A2 - Jul 5, 09:40 UTCJul 5, 19:00 UTC9h 20m - -
2026-07-04 AAC8A4 - Jul 4, 09:30 UTCJul 4, 19:00 UTC9h 30m - -
2026-07-04 AAC8A4 LHR → IAH Jul 4, 09:25 UTCJul 4, 19:11 UTC9h 46m +25m -1m
2026-07-03 AAC8A4 - Jul 3, 09:25 UTCJul 3, 18:55 UTC9h 30m - -

Performance history

Flights tracked
150 showing last 30
Avg arrival delay
+10m
On-time arrival
83% 83% on time
Aircraft used
18

Monthly activity 4 months

Month Flights tracked
July 2026 33
June 2026 40
May 2026 43
April 2026 34

UAL879 frequently asked

Where does flight UAL879 fly?
UAL879 (United Airlines) flies from LHR to IAH. View the full route page.
How long is flight UAL879?
Based on observed flights, UAL879 takes on average 10h 10m from takeoff to landing.
How often does UAL879 fly?
UAL879 has been observed flying several times a week in our tracking data. We've recorded 150 flights under this callsign.
Is flight UAL879 usually on time?
Across recent flights, UAL879 arrives with an average 10-minute delay. 83% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL879?
UAL879 has been operated by 18 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL879 live?
Yes. When UAL879 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.