Apparatus

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flight_takeoff Flight

ACA851

Operated by Air Canada

Live map

Live map filtered to ACA851. Shown when the flight is currently airborne.

Route airports View route page →

Departure

LHR EGLL IFR

London Heathrow Airport

London, GB

Local time
20:01 GMT+1
Timezone
Europe/London
Type
Large Airport
Elevation
83 ft
Coordinates
51.4707, -0.4599

cloud Weather

Wind
190° / 9 kt
Visibility
6 SM
Ceiling
BKN 600 ft, OVC 1,900 ft
Temp / Dew
18°C / 17°C
Altimeter
29.94 inHg
Wx
-RA

Obs: 2026-10-12T18:50:00.000Z

Raw METAR / TAF 
METAR EGLL 121850Z AUTO 19009KT 9999 -RA BKN006 OVC019 18/17 Q1014

TAF EGLL 121654Z 1218/1324 19008KT 9999 SCT008 BKN016 TEMPO 1218/1221 6000 -DZRA BKN007 PROB30 TEMPO 1218/1220 3000 DZ PROB30 TEMPO 1221/1302 6000 -DZ BKN008 TEMPO 1302/1307 6000 -DZ BKN006 PROB30 TEMPO 1302/1306 3000 DZ BR BECMG 1307/1309 27015G28KT TEMPO 1308/1312 6000 RA BKN014 PROB30 TEMPO 1308/1311 4000 +SHRA BECMG 1309/1312 CAVOK

flight Live Traffic

flight_takeoff 57 Departures
flight_land 9 Arrivals

Arrival

YYC CYYC VFR

Calgary International Airport

Calgary, CA

Local time
13:01 MDT
Timezone
America/Edmonton
Type
Large Airport
Elevation
3,557 ft
Coordinates
51.1188, -114.0099

cloud Weather

Wind
170° / 12 kt
Visibility
40 SM
Ceiling
FEW 1,100 ft, FEW 25,000 ft
Temp / Dew
2°C / -2°C
Altimeter
29.93 inHg

Obs: 2026-10-12T18:11:00.000Z

Raw METAR / TAF 
SPECI CYYC 121811Z 17012KT 40SM FEW011 FEW250 02/M02 A2993 RMK SC1CI1 SC TR CI TR SLP181

TAF CYYC 121740Z 1218/1318 18012KT P6SM FEW010 FM122000 17012KT P6SM SKC BECMG 1303/1305 28005KT FM130900 33008KT P6SM BKN080 FM131300 34005KT P6SM FEW080 SCT200 RMK NXT FCST BY 122100Z

flight Live Traffic

flight_takeoff 42 Departures
flight_land 38 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 C058D5 LHR → YYC Jul 26, 09:45 UTCJul 26, 18:00 UTC8h 15m - -
2026-07-25 C058BF LHR → YYC Jul 25, 11:45 UTCJul 25, 20:00 UTC8h 15m - -
2026-07-24 C058C0 LHR → YYC Jul 24, 09:50 UTCJul 24, 18:05 UTC8h 15m - -
2026-07-23 C058C2 LHR → YYC Jul 23, 09:35 UTCJul 23, 17:50 UTC8h 15m - -
2026-07-22 C058DD LHR → YYC Jul 22, 11:10 UTCJul 22, 18:20 UTC7h 10m - -
2026-07-21 C058BE LHR → YYC Jul 21, 10:25 UTCJul 21, 18:40 UTC8h 15m - -
2026-07-20 C023C9 LHR → YYC Jul 20, 17:35 UTCJul 20, 18:00 UTC25m - -
2026-07-20 C023C9 LHR → YYC Jul 20, 09:45 UTCJul 20, 17:30 UTC7h 45m - -
2026-07-20 C023C9 LHR → YYC Jul 20, 09:43 UTCJul 20, 17:54 UTC8h 11m +28m +2m
2026-07-19 C058D5 LHR → YYC Jul 19, 09:57 UTCJul 19, 18:07 UTC8h 10m +42m +5m
2026-07-19 C058D5 LHR → YYC Jul 19, 10:00 UTCJul 19, 18:20 UTC8h 20m - -
2026-07-18 C058BB LHR → YYC Jul 18, 10:00 UTCJul 18, 18:25 UTC8h 25m - -
2026-07-17 C058BE LHR → YYC Jul 17, 09:35 UTCJul 17, 18:00 UTC8h 25m - -
2026-07-16 C01040 - Jul 16, 09:40 UTCJul 16, 18:00 UTC8h 20m - -
2026-07-15 C058C0 - Jul 15, 09:30 UTCJul 15, 17:45 UTC8h 15m - -
2026-07-15 C058C0 LHR → YYC Jul 15, 09:29 UTCJul 15, 17:37 UTC8h 8m +14m +14m
2026-07-14 C058C2 - Jul 14, 10:05 UTCJul 14, 18:20 UTC8h 15m - -
2026-07-14 C058C2 LHR → YYC Jul 14, 10:03 UTCJul 14, 18:10 UTC8h 7m +48m +3m
2026-07-13 C058DD - Jul 13, 09:50 UTCJul 13, 18:10 UTC8h 20m - -
2026-07-12 C058BF LHR → YYC Jul 12, 09:42 UTCJul 12, 17:55 UTC8h 13m +27m +3m
2026-07-12 C058BF LHR → YYC Jul 12, 09:45 UTCJul 12, 18:01 UTC8h 15m - -
2026-07-11 C058C2 LHR → YYC Jul 11, 09:30 UTCJul 11, 17:55 UTC8h 25m - -
2026-07-10 C038A7 LHR → YYC Jul 10, 09:35 UTCJul 10, 17:50 UTC8h 15m - -
2026-07-09 C058BB LHR → YYC Jul 9, 09:25 UTCJul 9, 17:34 UTC8h 9m +10m -11m
2026-07-09 C058BB - Jul 9, 09:25 UTCJul 9, 10:40 UTC1h 15m - -
2026-07-08 C058C2 - Jul 8, 09:40 UTCJul 8, 17:55 UTC8h 15m - -
2026-07-08 C058C2 LHR → YYC Jul 8, 09:36 UTCJul 8, 17:43 UTC8h 7m +21m +2m
2026-07-07 C00B35 - Jul 7, 09:45 UTCJul 7, 18:10 UTC8h 25m - -
2026-07-06 C058D5 - Jul 6, 09:25 UTCJul 6, 17:40 UTC8h 15m - -
2026-07-05 C0104F - Jul 5, 09:25 UTCJul 5, 18:00 UTC8h 35m - -

Performance history

Flights tracked
158 showing last 30
Avg arrival delay
+3m
On-time arrival
100% 100% on time
Aircraft used
12

Monthly activity 4 months

Month Flights tracked
July 2026 36
June 2026 42
May 2026 39
April 2026 41

ACA851 frequently asked

Where does flight ACA851 fly?
ACA851 (Air Canada) flies from LHR to YYC. View the full route page.
How long is flight ACA851?
Based on observed flights, ACA851 takes on average 7h 43m from takeoff to landing.
How often does ACA851 fly?
ACA851 has been observed flying several times a week in our tracking data. We've recorded 158 flights under this callsign.
Is flight ACA851 usually on time?
Across recent flights, ACA851 arrives with an average 3-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight ACA851?
ACA851 has been operated by 12 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track ACA851 live?
Yes. When ACA851 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.