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UAL939

LHR → SFO · Boeing 787-9 · United Airlines

For travellers

Departure · London (LHR)

Terminal 2
Scheduled 13 Sep 16:15
Board status: Departed 17:16
Airborne since 13 Sep 17:16 (ADS-B)

Board data from heathrow, updated 25311 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
2026-09-13 15:15 UTC
Est. departure time
2026-09-13 15:57 UTC (approx.)
Arrival
San Francisco International Airport (SFO) — San Francisco, United States
Also flies as
UA939
Codeshares
AC3716, LH8572, LX3122, OS7911, SN9106
Distance flown
9140 km
Straight-line distance
8616 km
Approach distance
65 km

Aircraft

Registration
N71108
Type
Boeing 787-9
Seats
257 total (149 Economy, 39 Economy Plus, 21 Premium Plus, 48 Polaris) (typical for type, not this tail)
CO2 (EMEP est., total)
384.2 t (3124 kg/pax Business, 1407 kg/pax Premium Economy, 1092 kg/pax Economy)

Altitude & speed

Max altitude
38,000 ft
Max ground speed
527 kt
Tracked
10h 40m · 8,869 km
Altitude (ft, max 38,000)
020,52041,0400m1h 0m2h 0m3h 0m4h 0m5h 0m6h 0m7h 0m8h 0m9h 0m10h 0m
Ground speed (kt, max 527)
02855690m1h 0m2h 0m3h 0m4h 0m5h 0m6h 0m7h 0m8h 0m9h 0m10h 0m
Altitude (ft, max 38,000)
020,52041,0400m2h 0m4h 0m6h 0m8h 0m10h 0m
Ground speed (kt, max 527)
02855690m2h 0m4h 0m6h 0m8h 0m10h 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
2026-10-01 15:43 UTC UAL939 LHR → SFO
London → San Francisco
 N61109 Boeing 787-9 Completed 8970 km
2026-09-30 15:31 UTC UAL939 LHR → SFO
London → San Francisco
 N61111 Boeing 787-9 Completed 9030 km
2026-09-29 15:40 UTC UAL939 LHR → SFO
London → San Francisco
 N71108 Boeing 787-9 Completed 8883 km
2026-09-28 15:36 UTC UAL939 LHR → SFO
London → San Francisco
 N81110 Boeing 787-9 Completed 8895 km
2026-09-27 15:42 UTC UAL939 LHR → SFO
London → San Francisco
 N81107 Boeing 787-9 Completed 8973 km
2026-09-26 15:47 UTC UAL939 LHR → SFO
London → San Francisco
 N61111 Boeing 787-9 Completed 8860 km
2026-09-25 15:32 UTC UAL939 LHR → SFO
London → San Francisco
 N61109 Boeing 787-9 Completed 8886 km
2026-09-24 15:30 UTC UAL939 LHR → SFO
London → San Francisco
 N61101 Boeing 787-9 Completed 8836 km
2026-09-23 15:38 UTC UAL939 LHR → SFO
London → San Francisco
 N81105 Boeing 787-9 Completed 9029 km
2026-09-22 15:52 UTC UAL939 LHR → SFO
London → San Francisco
 N61111 Boeing 787-9 Completed 8903 km
2026-09-21 17:45 UTC UAL939 LHR → SFO
London → San Francisco
 N21102 Boeing 787-9 Completed 8950 km
2026-09-20 15:49 UTC UAL939 LHR → SFO
London → San Francisco
 N71108 Boeing 787-9 Completed 8842 km
2026-09-19 15:32 UTC UAL939 LHR → SFO
London → San Francisco
 N81107 Boeing 787-9 Completed 9077 km
2026-09-18 15:30 UTC UAL939 LHR → SFO
London → San Francisco
 N61101 Boeing 787-9 Completed 9039 km
2026-09-17 15:32 UTC UAL939 LHR → SFO
London → San Francisco
 N71108 Boeing 787-9 Completed 9191 km
2026-09-16 15:28 UTC UAL939 LHR → SFO
London → San Francisco
 N71108 Boeing 787-9 Completed 9164 km
2026-09-15 15:33 UTC UAL939 LHR → SFO
London → San Francisco
 N61109 Boeing 787-9 Completed 9272 km
2026-09-14 15:41 UTC UAL939 LHR → SFO
London → San Francisco
 N61101 Boeing 787-9 Completed 9096 km
2026-09-13 16:16 UTC UAL939 LHR → SFO
London → San Francisco
 N71108 Boeing 787-9 Completed 9140 km
2026-09-12 15:29 UTC UAL939 LHR → SFO
London → San Francisco
 N61101 Boeing 787-9 Completed 9018 km
2026-09-11 15:33 UTC UAL939 LHR → SFO
London → San Francisco
 N21102 Boeing 787-9 Completed 9304 km
2026-09-10 15:58 UTC UAL939 LHR → SFO
London → San Francisco
 N61106 Boeing 787-9 Completed 9217 km
2026-09-09 15:36 UTC UAL939 LHR → SFO
London → San Francisco
 N71108 Boeing 787-9 Completed 9068 km
2026-09-07 15:46 UTC UAL939 LHR → SFO
London → San Francisco
 N511WA RV14 Incomplete (signal lost) ~8610 km est. (66 km recorded)
2026-09-07 15:38 UTC UAL939 LHR → SFO
London → San Francisco
 N51104 Boeing 787-9 Completed 9325 km
2026-09-06 15:35 UTC UAL939 LHR → SFO
London → San Francisco
 N81105 Boeing 787-9 Completed 9018 km
2026-09-05 15:38 UTC UAL939 LHR → SFO
London → San Francisco
 N61106 Boeing 787-9 Completed 8922 km
2026-09-04 15:58 UTC UAL939 LHR → SFO
London → San Francisco
 N21102 Boeing 787-9 Completed 8909 km
2026-09-03 15:52 UTC UAL939 LHR → ?
London → ?
 — — Incomplete (signal lost) 9 km
2026-09-03 15:40 UTC UAL939 LHR → SFO
London → San Francisco
 N71108 Boeing 787-9 Completed 9080 km
2026-09-02 15:42 UTC UAL939 LHR → SFO
London → San Francisco
 N61101 Boeing 787-9 Completed 9020 km
2026-09-01 15:45 UTC UAL939 LHR → SFO
London → San Francisco
 N81110 Boeing 787-9 Completed 9040 km
2026-08-31 15:45 UTC UAL939 LHR → SFO
London → San Francisco
 N81107 Boeing 787-9 Completed 9252 km
2026-08-30 15:40 UTC UAL939 LHR → SFO
London → San Francisco
 N61103 Boeing 787-9 Completed 9032 km
2026-08-29 15:09 UTC UAL939 LHR → SFO
London → San Francisco
 N51104 Boeing 787-9 Completed 9199 km
2026-08-28 16:36 UTC UAL939 LHR → SFO
London → San Francisco
 N81105 Boeing 787-9 Completed 9106 km
2026-08-27 15:47 UTC UAL939 LHR → SFO
London → San Francisco
 N21102 Boeing 787-9 Completed 9141 km
2026-08-26 15:43 UTC UAL939 LHR → SFO
London → San Francisco
 N71108 Boeing 787-9 Completed 9246 km
2026-08-25 15:02 UTC UAL939 LHR → SFO
London → San Francisco
 N61101 Boeing 787-9 Completed 9031 km
2026-08-24 15:06 UTC UAL939 LHR → SFO
London → San Francisco
 N81110 Boeing 787-9 Completed 9080 km
2026-08-23 15:23 UTC UAL939 LHR → SFO
London → San Francisco
 N81107 Boeing 787-9 Completed 9117 km
2026-08-22 15:45 UTC UAL939 LHR → SFO
London → San Francisco
 N21102 Boeing 787-9 Completed 10346 km
2026-08-21 15:05 UTC UAL939 LHR → SFO
London → San Francisco
 N61106 Boeing 787-9 Completed 10408 km
2026-08-19 15:17 UTC UAL939 LHR → SFO
London → San Francisco
 N61101 Boeing 787-9 Completed 19158 km
2026-08-18 15:44 UTC UAL939 LHR → SFO
London → San Francisco
 N81107 Boeing 787-9 Completed 14447 km
2026-08-17 15:32 UTC UAL939 LHR → SFO
London → San Francisco
 N61106 Boeing 787-9 Completed 10418 km
2026-08-16 15:12 UTC UAL939 LHR → SFO
London → San Francisco
 N81105 Boeing 787-9 Completed 10628 km
2026-08-15 19:01 UTC UAL939 LHR → SFO
London → San Francisco
 N61103 Boeing 787-9 Completed 10716 km
2026-08-14 15:12 UTC UAL939 LHR → SFO
London → San Francisco
 N61101 Boeing 787-9 Completed ~21916 km est. (10584 km recorded)
2026-08-13 15:17 UTC UAL939 LHR → SFO
London → San Francisco
 N51104 Boeing 787-9 Completed 10197 km

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