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 VFR

London Heathrow Airport

London, GB

Local time
18:28 GMT+1
Timezone
Europe/London
Type
Large Airport
Elevation
83 ft
Coordinates
51.4707, -0.4599

cloud Weather

Wind
230° / 19 kt
Visibility
6 SM
Ceiling
SCT 3,300 ft, BKN 4,300 ft
Temp / Dew
22°C / 14°C
Altimeter
29.70 inHg

Obs: 2026-08-28T17:20:00.000Z

Raw METAR / TAF 
METAR EGLL 281720Z AUTO 23019KT 9999 SCT033 BKN043 22/14 Q1006

TAF EGLL 281656Z 2818/2924 25015KT 9999 FEW040 TEMPO 2818/2821 7000 SHRA PROB30 TEMPO 2818/2821 26018G28KT 3000 +SHRA +TSGS PROB30 TEMPO 2823/2908 BKN010 TEMPO 2907/2921 8000 -RA BKN008 BECMG 2909/2912 17010KT PROB40 TEMPO 2909/2913 3000 +RA +SHRA BECMG 2912/2915 23010KT PROB30 TEMPO 2913/2919 3000 +RA +TSRA BECMG 2918/2921 29007KT TEMPO 2921/2924 BKN008

Arrival

YYC CYYC VFR

Calgary International Airport

Calgary, CA

Local time
11:28 MDT
Timezone
America/Edmonton
Type
Large Airport
Elevation
3,557 ft
Coordinates
51.1188, -114.0099

cloud Weather

Wind
110° / 4 kt
Visibility
15 SM
Ceiling
FEW 12,000 ft, SCT 25,000 ft
Temp / Dew
19°C / 8°C
Altimeter
29.90 inHg

Obs: 2026-08-28T17:00:00.000Z

Raw METAR / TAF 
METAR CYYC 281700Z 11004KT 070V140 15SM FEW120 SCT250 19/08 A2990 RMK AC1CI3 AC TR FU SLP116 DENSITY ALT 4900FT

TAF CYYC 281440Z 2815/2912 22006KT P6SM SCT120 BKN250 FM282100 16010KT P6SM SCT100 BECMG 2823/2901 06010KT FM290600 35008KT P6SM FEW080 RMK NXT FCST BY 281800Z

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.