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UAL4

LHR → IAH · Boeing 777-200ER · United Airlines

For travellers

Departure · London (LHR)

Terminal 2
Scheduled 15 Sep 13:40
Board status: Departed 14:01
Airborne since 15 Sep 14:00 (ADS-B)

Board data from heathrow, updated 22925 min ago; times local to each airport.

Flight

Status
Completed
Arrival confirmed via
ADS-B (ground reading)
Departure
London Heathrow Airport (LHR) — London, United Kingdom
Scheduled departure
2026-09-15 12:40 UTC
Est. departure time
2026-09-15 12:44 UTC (approx.)
Arrival
George Bush Intercontinental Houston Airport (IAH) — Houston, United States
Also flies as
UA4
Codeshares
AC3913, LH7621, LX3038, OS7813, SN9080
Distance flown
8267 km
Straight-line distance
7763 km
Approach distance
107 km

Aircraft

Registration
N229UA
Type
Boeing 777-200ER
Seats
276 total (156 Economy, 46 Economy Plus, 24 Premium Plus, 50 United Polaris Business)
CO2 (EMEP est., total)
429.7 t (3410 kg/pax Business, 1399 kg/pax Premium Economy, 1116 kg/pax Economy)

Altitude & speed

Max altitude
36,025 ft
Max ground speed
511 kt
Tracked
9h 34m · 7,964 km
Altitude (ft, max 36,025)
019,45438,9070m1h 0m2h 0m3h 0m4h 0m5h 0m6h 0m7h 0m8h 0m9h 0m
Ground speed (kt, max 511)
02765520m1h 0m2h 0m3h 0m4h 0m5h 0m6h 0m7h 0m8h 0m9h 0m
Altitude (ft, max 36,025)
019,45438,9070m2h 0m4h 0m6h 0m8h 0m
Ground speed (kt, max 511)
02765520m2h 0m4h 0m6h 0m8h 0m

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airline

United Airlines (UAL)

Latest flights

DepartedFlightRouteRegAircraftStatusDistance
2026-10-02 12:58 UTC UAL4 LHR → IAH
London → Houston
 N226UA Boeing 777-200ER In progress ~7763 km est.
2026-10-01 12:57 UTC UAL4 LHR → IAH
London → Houston
 N226UA Boeing 777-200ER Completed (landing confirmed by airport data) 8150 km
2026-09-30 15:00 UTC UAL4 LHR → IAH
London → Houston
 N216UA Boeing 777-200ER Completed (landing confirmed by airport data) 8108 km
2026-09-29 16:20 UTC UAL4 LHR → IAH
London → Houston
 N216UA Boeing 777-200ER Completed (landing presumed) 8005 km
2026-09-28 13:04 UTC UAL4 LHR → IAH
London → Houston
 N797UA Boeing 777-200ER Completed (landing presumed) 7898 km
2026-09-27 13:09 UTC UAL4 LHR → IAH
London → Houston
 N76010 Boeing 777-200ER Incomplete (signal lost) 7977 km
2026-09-26 13:18 UTC UAL4 LHR → IAH
London → Houston
 N216UA Boeing 777-200ER Incomplete (signal lost) 8147 km
2026-09-25 12:52 UTC UAL4 LHR → IAH
London → Houston
 N216UA Boeing 777-200ER Completed (landing presumed) 8152 km
2026-09-24 12:46 UTC UAL4 LHR → IAH
London → Houston
 N225UA Boeing 777-200ER Incomplete (signal lost) 7957 km
2026-09-23 12:56 UTC UAL4 LHR → IAH
London → Houston
 N794UA Boeing 777-200ER Completed (landing presumed) 7982 km
2026-09-22 13:27 UTC UAL4 LHR → IAH
London → Houston
 N794UA Boeing 777-200ER Completed (landing presumed) 8071 km
2026-09-21 13:04 UTC UAL4 LHR → IAH
London → Houston
 N794UA Boeing 777-200ER Completed (landing presumed) 8882 km
2026-09-20 13:40 UTC UAL4 LHR → IAH
London → Houston
 N27015 Boeing 777-200ER Completed 8072 km
2026-09-19 14:59 UTC UAL4 LHR → IAH
London → Houston
 N27015 Boeing 777-200ER Completed 8099 km
2026-09-18 12:35 UTC UAL4 LHR → IAH
London → Houston
 N77022 Boeing 777-200ER Completed 8248 km
2026-09-17 13:06 UTC UAL4 LHR → IAH
London → Houston
 N77022 Boeing 777-200ER Completed 8434 km
2026-09-16 12:44 UTC UAL4 LHR → IAH
London → Houston
 N229UA Boeing 777-200ER Incomplete (signal lost) 8291 km
2026-09-15 13:00 UTC UAL4 LHR → IAH
London → Houston
 N229UA Boeing 777-200ER Completed 8267 km
2026-09-14 13:19 UTC UAL4 LHR → IAH
London → Houston
 N798UA Boeing 777-200ER Completed 8479 km
2026-09-13 13:15 UTC UAL4 LHR → IAH
London → Houston
 N77022 Boeing 777-200ER Completed (landing presumed) 8649 km
2026-09-12 13:26 UTC UAL4 LHR → IAH
London → Houston
 N77022 Boeing 777-200ER Completed (landing presumed) 8229 km
2026-09-11 13:03 UTC UAL4 LHR → IAH
London → Houston
 N57016 Boeing 777-200ER Completed 8248 km
2026-09-10 12:47 UTC UAL4 LHR → IAH
London → Houston
 N218UA Boeing 777-200ER Completed (landing presumed) 8514 km
2026-09-09 13:06 UTC UAL4 LHR → IAH
London → Houston
 N218UA Boeing 777-200ER Completed 8188 km
2026-09-07 13:16 UTC UAL4 LHR → IAH
London → Houston
 N37018 Boeing 777-200ER Completed 8550 km
2026-09-06 13:01 UTC UAL4 LHR → IAH
London → Houston
 N786UA Boeing 777-200ER Completed (landing presumed) 8339 km
2026-09-05 13:26 UTC UAL4 LHR → IAH
London → Houston
 N786UA Boeing 777-200ER Completed 8261 km
2026-09-04 12:39 UTC UAL4 LHR → IAH
London → Houston
 N77014 Boeing 777-200ER Completed 8368 km
2026-09-03 13:36 UTC UAL4 LHR → IAH
London → Houston
 N788UA Boeing 777-200ER Incomplete (signal lost) 8413 km
2026-09-02 13:09 UTC UAL4 LHR → IAH
London → Houston
 N216UA Boeing 777-200ER Completed 8936 km
2026-09-01 13:06 UTC UAL4 LHR → IAH
London → Houston
 N784UA Boeing 777-200ER Completed 8596 km
2026-08-31 12:53 UTC UAL4 LHR → IAH
London → Houston
 N797UA Boeing 777-200ER Completed 8504 km
2026-08-30 12:49 UTC UAL4 LHR → IAH
London → Houston
 N77014 Boeing 777-200ER Incomplete (signal lost) 8210 km
2026-08-29 12:51 UTC UAL4 LHR → IAH
London → Houston
 N74007 Boeing 777-200ER Completed 8304 km
2026-08-28 13:10 UTC UAL4 LHR → IAH
London → Houston
 N37018 Boeing 777-200ER Completed 8813 km
2026-08-27 13:21 UTC UAL4 LHR → IAH
London → Houston
 N74007 Boeing 777-200ER Completed 8328 km
2026-08-26 13:05 UTC UAL4 LHR → IAH
London → Houston
 N77019 Boeing 777-200ER Completed 8541 km
2026-08-25 12:58 UTC UAL4 LHR → IAH
London → Houston
 N78017 Boeing 777-200ER Completed 8247 km
2026-08-24 13:46 UTC UAL4 LHR → IAH
London → Houston
 N224UA Boeing 777-200ER Completed 8184 km
2026-08-23 12:41 UTC UAL4 LHR → IAH
London → Houston
 N224UA Boeing 777-200ER Completed 8175 km
2026-08-22 13:03 UTC UAL4 LHR → IAH
London → Houston
 N57016 Boeing 777-200ER Completed 9794 km
2026-08-21 13:05 UTC UAL4 LHR → IAH
London → Houston
 N796UA Boeing 777-200ER Completed 9338 km
2026-08-20 13:11 UTC UAL4 LHR → IAH
London → Houston
 N794UA Boeing 777-200ER Completed 9918 km
2026-08-19 13:07 UTC UAL4 LHR → IAH
London → Houston
 N226UA Boeing 777-200ER Incomplete (signal lost) 10905 km
2026-08-18 12:53 UTC UAL4 LHR → IAH
London → Houston
 N69020 Boeing 777-200ER Completed 15472 km
2026-08-17 12:46 UTC UAL4 LHR → IAH
London → Houston
 N37018 Boeing 777-200ER Completed 9618 km
2026-08-16 12:42 UTC UAL4 LHR → IAH
London → Houston
 N798UA Boeing 777-200ER Completed 9602 km
2026-08-15 12:26 UTC UAL4 LHR → IAH
London → Houston
 N216UA Boeing 777-200ER Completed 10047 km
2026-08-13 12:42 UTC UAL4 LHR → IAH
London → Houston
 N796UA Boeing 777-200ER Completed 10302 km

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