Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL27

Operated by United Airlines

Live map

Live map filtered to UAL27. Shown when the flight is currently airborne.

Route airports View route page →

Departure

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
04:31 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
160° / 7 kt
Visibility
10 SM
Ceiling
FEW 15,000 ft, SCT 22,000 ft
Temp / Dew
16°C / 9°C
Altimeter
30.17 inHg

Obs: 2026-08-28T09:53:00.000Z

Raw METAR / TAF 
METAR KDEN 280953Z 16007KT 10SM FEW150 SCT220 16/09 A3017 RMK AO2 SLP132 T01560089

TAF KDEN 280855Z 2809/2912 18011KT P6SM FEW100 FEW150 FM281100 23011KT P6SM FEW120 FM281600 VRB06KT P6SM FEW120 FM282100 02008KT P6SM FEW100 SCT120 PROB30 2821/2902 VRB15G25KT -SHRA BKN080 FM290200 VRB06KT P6SM SCT120 BKN220 FM290500 22009KT P6SM FEW120 SCT220

flight Live Traffic

flight_takeoff 271 Departures
flight_land 250 Arrivals

Arrival

LHR EGLL VFR

London Heathrow Airport

London, GB

Local time
11:31 GMT+1
Timezone
Europe/London
Type
Large Airport
Elevation
83 ft
Coordinates
51.4707, -0.4599

cloud Weather

Wind
230° / 13 kt
Visibility
6 SM
Ceiling
FEW 4,000 ft
Temp / Dew
22°C / 12°C
Altimeter
29.70 inHg

Obs: 2026-08-28T10:20:00.000Z

Raw METAR / TAF 
METAR EGLL 281020Z AUTO 23013KT 9999 FEW040 22/12 Q1006

TAF EGLL 280502Z 2806/2912 23008KT 9999 FEW030 PROB30 TEMPO 2806/2808 8000 BKN008 TEMPO 2811/2821 7000 SHRA PROB30 TEMPO 2812/2820 24015G25KT 3000 +SHRA +TSGS PROB30 TEMPO 2823/2908 BKN010 TEMPO 2907/2912 8000 -RA BECMG 2909/2912 17010KT PROB40 TEMPO 2909/2912 4000 +RA BKN008

flight Live Traffic

flight_takeoff 43 Departures
flight_land 59 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A47FD9 DEN → LHR Jul 26, 00:20 UTCJul 26, 08:45 UTC8h 26m - -
2026-07-26 A47FD9 DEN → LHR Jul 26, 00:08 UTCJul 26, 08:37 UTC8h 29m +33m -8m
2026-07-24 A254D8 DEN → LHR Jul 24, 23:55 UTCJul 25, 08:25 UTC8h 30m - -
2026-07-24 A254DD DEN → LHR Jul 24, 00:00 UTCJul 24, 07:15 UTC7h 15m - -
2026-07-23 A254DD DEN → LHR Jul 23, 23:58 UTCJul 24, 08:09 UTC8h 11m +23m +3m
2026-07-23 A47FDE DEN → LHR Jul 23, 00:25 UTCJul 23, 08:55 UTC8h 30m - -
2026-07-21 A31A7B DEN → LHR Jul 21, 00:45 UTCJul 21, 09:00 UTC8h 15m - -
2026-07-20 A31A77 DEN → LHR Jul 20, 01:40 UTCJul 20, 10:05 UTC8h 25m - -
2026-07-19 A2061E DEN → LHR Jul 19, 00:05 UTCJul 19, 08:25 UTC8h 20m - -
2026-07-18 A2061E DEN → LHR Jul 18, 00:01 UTCJul 18, 08:42 UTC8h 41m +26m +13m
2026-07-18 A2061E DEN → LHR Jul 18, 00:10 UTCJul 18, 08:45 UTC8h 36m - -
2026-07-17 A2061E DEN → LHR Jul 17, 00:10 UTCJul 17, 08:49 UTC8h 40m - -
2026-07-15 A2061E DEN → LHR Jul 15, 23:55 UTCJul 16, 08:35 UTC8h 40m - -
2026-07-15 A2551D - Jul 15, 00:00 UTCJul 15, 08:40 UTC8h 40m - -
2026-07-14 A25519 DEN → LHR Jul 14, 23:58 UTCJul 15, 08:26 UTC8h 28m +23m -1m
2026-07-14 A31A2D DEN → LHR Jul 14, 00:10 UTCJul 14, 08:40 UTC8h 30m - -
2026-07-13 A31A2D DEN → LHR Jul 13, 23:58 UTCJul 14, 08:28 UTC8h 30m +23m +1m
2026-07-12 A254D8 DEN → LHR Jul 12, 23:50 UTCJul 13, 08:25 UTC8h 35m - -
2026-07-12 A31A77 DEN → LHR Jul 12, 00:18 UTCJul 12, 08:20 UTC8h 2m +43m +7m
2026-07-12 A31A77 - Jul 12, 00:01 UTCJul 12, 07:45 UTC7h 45m - -
2026-07-11 A254D7 DEN → LHR Jul 11, 00:20 UTCJul 11, 08:45 UTC8h 25m - -
2026-07-10 A31A96 DEN → LHR Jul 10, 00:10 UTCJul 10, 08:40 UTC8h 30m - -
2026-07-09 A4095F DEN → LHR Jul 9, 00:25 UTCJul 9, 09:00 UTC8h 35m - -
2026-07-08 A2551D DEN → LHR Jul 8, 00:15 UTCJul 8, 08:50 UTC8h 35m - -
2026-07-07 A25519 - Jul 7, 08:50 UTCJul 7, 09:00 UTC10m - -
2026-07-07 A2551D DEN → LHR Jul 7, 00:40 UTCJul 7, 09:10 UTC8h 30m - -
2026-07-06 A25519 DEN → LHR Jul 6, 23:58 UTCJul 7, 09:07 UTC9h 9m +23m -19m
2026-07-06 A254D8 DEN → LHR Jul 6, 00:00 UTCJul 6, 08:25 UTC8h 25m - -
2026-07-04 A254D8 DEN → LHR Jul 4, 23:58 UTCJul 5, 08:17 UTC8h 19m +23m +10m
2026-07-04 A254D8 - Jul 4, 23:50 UTCJul 5, 01:40 UTC1h 50m - -

Performance history

Flights tracked
159 showing last 30
Avg arrival delay
+1m
On-time arrival
100% 100% on time
Aircraft used
13

Monthly activity 4 months

Month Flights tracked
July 2026 34
June 2026 44
May 2026 39
April 2026 42

UAL27 frequently asked

Where does flight UAL27 fly?
UAL27 (United Airlines) flies from DEN to LHR. View the full route page.
How long is flight UAL27?
Based on observed flights, UAL27 takes on average 7h 56m from takeoff to landing.
How often does UAL27 fly?
UAL27 has been observed flying several times a week in our tracking data. We've recorded 159 flights under this callsign.
Is flight UAL27 usually on time?
Across recent flights, UAL27 arrives with an average 1-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL27?
UAL27 has been operated by 13 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL27 live?
Yes. When UAL27 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.