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
03:37 GMT+1
Timezone
Europe/London
Type
Large Airport
Elevation
83 ft
Coordinates
51.4707, -0.4599

cloud Weather

Wind
310° / 2 kt
Visibility
6 SM
Ceiling
CLR
Temp / Dew
17°C / 10°C
Altimeter
30.18 inHg

Obs: 2026-05-30T02:20:00.000Z

Raw METAR / TAF 
METAR EGLL 300220Z AUTO 31002KT 9999 NCD 17/10 Q1022

TAF EGLL 292254Z 3000/3106 VRB04KT CAVOK BECMG 3016/3019 28010KT TEMPO 3104/3106 BKN040

flight Live Traffic

flight_takeoff 27 Departures
flight_land 78 Arrivals

Arrival

YYC CYYC VFR

Calgary International Airport

Calgary, CA

Local time
20:37 MDT
Timezone
America/Edmonton
Type
Large Airport
Elevation
3,557 ft
Coordinates
51.1188, -114.0099

cloud Weather

Wind
270° / 9 kt
Visibility
40 SM
Ceiling
FEW 12,000 ft, BKN 30,000 ft
Temp / Dew
26°C / 0°C
Altimeter
29.64 inHg

Obs: 2026-05-30T02:00:00.000Z

Raw METAR / TAF 
METAR CYYC 300200Z 27009KT 40SM FEW120 BKN300 26/00 A2964 RMK AC1CI7 AC TR SLP021 DENSITY ALT 6000FT

TAF CYYC 292340Z 3000/3024 23012G22KT P6SM FEW100 FEW250 BECMG 3000/3002 26008KT FM300900 35006KT P6SM SCT190 FM301200 36008KT P6SM FEW020 BKN080 FM301500 01012KT P6SM SCT012 OVC030 TEMPO 3015/3024 5SM -SHRA BR BKN012 RMK NXT FCST BY 300300Z

flight Live Traffic

flight_takeoff 28 Departures
flight_land 35 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-29 C0583A LHR → YYC May 29, 10:35 UTCMay 29, 19:00 UTC8h 25m - -
2026-05-28 C051E2 LHR → YYC May 28, 11:30 UTCMay 28, 19:55 UTC8h 25m - -
2026-05-28 C051E2 LHR → YYC May 28, 11:29 UTCMay 28, 19:49 UTC8h 20m +134m -3m
2026-05-27 C05840 LHR → YYC May 27, 10:00 UTCMay 27, 18:50 UTC8h 50m - -
2026-05-26 C0582B LHR → YYC May 26, 09:35 UTCMay 26, 18:19 UTC8h 45m - -
2026-05-25 C04FDD LHR → YYC May 25, 09:35 UTCMay 25, 18:15 UTC8h 40m - -
2026-05-24 C0582B LHR → YYC May 24, 10:40 UTCMay 24, 19:05 UTC8h 25m - -
2026-05-23 C051E4 LHR → YYC May 23, 09:30 UTCMay 23, 18:05 UTC8h 35m - -
2026-05-22 C053F6 LHR → YYC May 22, 09:40 UTCMay 22, 18:05 UTC8h 25m - -
2026-05-21 C04FE4 LHR → YYC May 21, 09:35 UTCMay 21, 18:00 UTC8h 25m - -
2026-05-20 C0582B LHR → YYC May 20, 09:30 UTCMay 20, 17:55 UTC8h 25m - -
2026-05-19 C0583F LHR → YYC May 19, 10:10 UTCMay 19, 18:35 UTC8h 25m - -
2026-05-18 C051E4 LHR → YYC May 18, 09:35 UTCMay 18, 18:00 UTC8h 25m - -
2026-05-17 C04FD7 LHR → YYC May 17, 17:55 UTCMay 17, 18:10 UTC15m - -
2026-05-17 C04FD7 LHR → YYC May 17, 09:35 UTCMay 17, 09:45 UTC10m - -
2026-05-17 C04FD7 LHR → YYC May 17, 09:35 UTCMay 17, 17:37 UTC8h 2m +20m -7m
2026-05-16 C0583A LHR → YYC May 16, 09:40 UTCMay 16, 17:55 UTC8h 15m - -
2026-05-15 C04FD7 LHR → YYC May 15, 09:45 UTCMay 15, 18:20 UTC8h 34m - -
2026-05-14 C0583F LHR → YYC May 14, 11:05 UTCMay 14, 20:00 UTC8h 55m - -
2026-05-14 C0583F LHR → YYC May 14, 11:04 UTCMay 14, 19:54 UTC8h 50m +109m +8m
2026-05-13 C04FD7 LHR → YYC May 13, 11:15 UTCMay 13, 19:45 UTC8h 30m - -
2026-05-13 C04FD7 LHR → YYC May 13, 11:11 UTCMay 13, 19:54 UTC8h 43m +116m -5m
2026-05-12 C083F2 LHR → YYC May 12, 09:25 UTCMay 12, 18:00 UTC8h 35m - -
2026-05-11 C053F6 LHR → YYC May 11, 09:35 UTCMay 11, 18:20 UTC8h 45m - -
2026-05-11 C053F6 LHR → YYC May 11, 09:32 UTCMay 11, 18:07 UTC8h 35m +17m -16m
2026-05-10 C06120 LHR → YYC May 10, 09:35 UTCMay 10, 18:20 UTC8h 45m - -
2026-05-09 C0611F LHR → YYC May 9, 09:40 UTCMay 9, 18:30 UTC8h 50m - -
2026-05-08 C053F6 LHR → YYC May 8, 09:44 UTCMay 8, 18:15 UTC8h 30m - -
2026-05-07 C0583A LHR → YYC May 7, 10:00 UTCMay 7, 18:20 UTC8h 20m - -
2026-05-06 C06A38 LHR → YYC May 6, 09:40 UTCMay 6, 18:10 UTC8h 29m - -

Performance history

Flights tracked
77 showing last 30
Avg arrival delay
-5m
On-time arrival
100% 100% on time
Aircraft used
14

Monthly activity 2 months

Month Flights tracked
May 2026 36
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 59m 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 77 flights under this callsign.
Is flight ACA851 usually on time?
Across recent flights, ACA851 arrives 5 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight ACA851?
ACA851 has been operated by 14 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.