Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL921

Operated by United Airlines

Live map

Live map filtered to UAL921. Shown when the flight is currently airborne.

Route airports View route page →

Departure

LHR EGLL IFR

London Heathrow Airport

London, GB

Local time
05:18 GMT+1
Timezone
Europe/London
Type
Large Airport
Elevation
83 ft
Coordinates
51.4707, -0.4599

cloud Weather

Wind
190° / 8 kt
Visibility
6 SM
Ceiling
BKN 700 ft, BKN 1,100 ft, OVC 4,000 ft
Temp / Dew
17°C / 16°C
Altimeter
29.94 inHg

Obs: 2026-10-13T03:50:00.000Z

Raw METAR / TAF 
METAR EGLL 130350Z AUTO 19008KT 9999 BKN007/// BKN011/// OVC040/// 17/16 Q1014

TAF EGLL 122308Z 1300/1406 20005KT 9999 SCT008 BKN018 PROB40 TEMPO 1300/1302 BKN008 TEMPO 1302/1307 6000 -DZ BKN006 PROB30 TEMPO 1302/1306 3000 DZ BR BKN004 BECMG 1303/1306 21015KT PROB30 TEMPO 1305/1308 22017G27KT BECMG 1308/1311 27015G28KT TEMPO 1308/1312 6000 RA BKN014 PROB30 TEMPO 1308/1311 4000 +SHRA BECMG 1309/1312 CAVOK BECMG 1315/1318 26009KT PROB30 1404/1406 6000

flight Live Traffic

flight_takeoff 32 Departures
flight_land 69 Arrivals

Arrival

EWR KEWR VFR

Newark Liberty International Airport

Newark, US

Local time
00:18 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
18 ft
Coordinates
40.6894, -74.1705

cloud Weather

Wind
0° / 0 kt
Visibility
10 SM
Ceiling
FEW 20,000 ft, BKN 25,000 ft
Temp / Dew
18°C / 13°C
Altimeter
29.91 inHg

Obs: 2026-10-13T03:51:00.000Z

Raw METAR / TAF 
METAR KEWR 130351Z 00000KT 10SM FEW200 BKN250 18/13 A2991 RMK AO2 SLP127 T01780133 $

TAF KEWR 130240Z 1303/1406 VRB04KT P6SM SCT100 BKN250 FM131400 13006KT P6SM SCT030 BKN250 FM131800 19008KT P6SM SCT040 BKN150 FM140000 22008KT P6SM SCT040 SCT120 BKN250

flight Live Traffic

flight_takeoff 188 Departures
flight_land 127 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A9178D LHR → EWR Jul 26, 17:30 UTCJul 26, 18:50 UTC1h 20m - -
2026-07-25 A899A2 LHR → EWR Jul 25, 17:50 UTCJul 26, 01:00 UTC7h 10m - -
2026-07-24 A8D76B LHR → EWR Jul 24, 17:25 UTCJul 24, 18:30 UTC1h 5m - -
2026-07-24 A8D76B LHR → EWR Jul 24, 17:22 UTCJul 25, 00:35 UTC7h 13m +22m +2m
2026-07-24 A8D76B LHR → EWR Jul 24, 17:22 UTCJul 25, 00:34 UTC7h 12m +22m +1m
2026-07-23 A8C121 LHR → EWR Jul 23, 17:15 UTCJul 24, 00:25 UTC7h 10m - -
2026-07-22 A91B44 LHR → EWR Jul 22, 17:30 UTCJul 23, 00:45 UTC7h 15m - -
2026-07-21 A913D6 LHR → EWR Jul 21, 17:25 UTCJul 22, 00:55 UTC7h 30m - -
2026-07-20 A8CFFD - Jul 20, 17:35 UTCJul 21, 00:50 UTC7h 15m - -
2026-07-20 A8CFFD LHR → EWR Jul 20, 17:22 UTCJul 21, 00:44 UTC7h 22m +22m -6m
2026-07-19 A8F77C ORD → EWR Jul 19, 12:25 UTCJul 19, 13:55 UTC1h 30m - -
2026-07-19 A8F77C ORD → EWR Jul 19, 12:12 UTCJul 19, 13:52 UTC1h 40m +1152m -8m
2026-07-18 A8F77C - Jul 18, 17:25 UTCJul 19, 02:05 UTC8h 40m - -
2026-07-17 A8B9B3 - Jul 17, 17:40 UTCJul 18, 00:55 UTC7h 15m - -
2026-07-17 A8B9B3 LHR → EWR Jul 17, 17:22 UTCJul 18, 00:50 UTC7h 28m +22m +14m
2026-07-16 A8C121 - Jul 16, 20:19 UTCJul 16, 21:25 UTC1h 5m - -
2026-07-16 A8C121 LHR → EWR Jul 16, 20:12 UTCJul 17, 03:13 UTC7h 1m +192m +1m
2026-07-15 A8CFFD - Jul 15, 17:25 UTCJul 15, 18:35 UTC1h 10m - -
2026-07-15 A8CFFD LHR → EWR Jul 15, 17:22 UTCJul 16, 00:35 UTC7h 13m +22m -5m
2026-07-14 A8DD7B - Jul 14, 17:25 UTCJul 15, 00:45 UTC7h 19m - -
2026-07-13 A8AC35 - Jul 13, 21:30 UTCJul 14, 04:20 UTC6h 50m - -
2026-07-13 A8AC35 LHR → EWR Jul 13, 21:04 UTCJul 14, 04:17 UTC7h 13m +244m -5m
2026-07-12 A8AC35 - Jul 12, 17:55 UTCJul 12, 19:10 UTC1h 15m - -
2026-07-12 A8AC35 LHR → EWR Jul 12, 17:22 UTCJul 13, 00:54 UTC7h 32m +22m +4m
2026-07-12 A8AC35 LHR → EWR Jul 12, 17:22 UTCJul 13, 00:55 UTC7h 33m +22m +5m
2026-07-11 A8A87E - Jul 11, 17:35 UTCJul 12, 00:50 UTC7h 15m - -
2026-07-11 A8A87E LHR → EWR Jul 11, 17:22 UTCJul 12, 00:51 UTC7h 29m +22m +8m
2026-07-10 A8D3B4 - Jul 10, 17:40 UTCJul 11, 01:00 UTC7h 20m - -
2026-07-09 A8EC57 - Jul 9, 20:00 UTCJul 9, 21:15 UTC1h 15m - -
2026-07-09 A8EC57 LHR → EWR Jul 9, 19:53 UTCJul 10, 03:28 UTC7h 35m +173m +166m

Performance history

Flights tracked
165 showing last 30
Avg arrival delay
+15m
On-time arrival
92% 92% on time
Aircraft used
14

Monthly activity 4 months

Month Flights tracked
July 2026 44
June 2026 41
May 2026 44
April 2026 36

UAL921 frequently asked

Where does flight UAL921 fly?
UAL921 (United Airlines) flies from LHR to EWR. View the full route page.
How long is flight UAL921?
Based on observed flights, UAL921 takes on average 5h 44m from takeoff to landing.
How often does UAL921 fly?
UAL921 has been observed flying several times a week in our tracking data. We've recorded 165 flights under this callsign.
Is flight UAL921 usually on time?
Across recent flights, UAL921 arrives with an average 15-minute delay. 92% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL921?
UAL921 has been operated by 14 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL921 live?
Yes. When UAL921 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.