| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 02 | LHR | YYC | 10:15 | 12:05 |
Scheduled
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| Jul 01 | LHR | YYC | 15:13 | 16:21 |
Delayed
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| Jun 30 | LHR | YYC | 11:55 | 12:55 |
Delayed
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| Jun 29 | LHR | YYC | 10:58 | 12:00 |
Landed
|
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| Jun 28 | LHR | YYC | 10:41 | 11:36 |
Landed
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| Jun 27 | LHR | YYC | 10:36 | 11:41 |
Landed
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| Jun 26 | LHR | YYC | 11:04 | 12:19 |
Landed
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| Jun 25 | LHR | YYC | 10:34 | 11:40 |
Landed
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| Jun 24 | LHR | YYC | 10:48 | 11:54 |
Landed
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| Jun 23 | LHR | YYC | 11:01 | 12:18 |
Landed
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Air Canada Flight AC851 connects London, United Kingdom to Calgary, Canada, taking off from London Heathrow Airport LHR and landing at Calgary International Airport YYC.
How long is the AC851 flight from London to Calgary?
The average flight time from London to Calgary is 8 hours and 6 minutes. The flight distance is 7014 km / 4358 miles and the average flight speed is 859 km/h / 534 mph.
How many AC851 flights are operated per week?
7 flights per week. The flight AC851 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
What is the On-Time Performance (OTP) of Air Canada Flight AC851 London to Calgary?
The Airportia On-Time Performance Rating for Air Canada Flight AC851 is 4.4/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest AC851 flight?
The latest flight took off on Wednesday, July 1st, 2026 with the flight status being En-Route on 16:21.
How else can the flight AC851 be referenced as?
This Air Canada flight can also be referenced as ACA851, AC0851, AC 851, ACA 851.
How often is flight AC851 delayed?
On average, 40% of all AC851 flights are delayed. The average delay is 83 minutes.
Can I get compensation for my delayed or cancelled AC851 flight or baggage issues?
If your AC851 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our AC851 Flight Tracker above for more details.
Claim compensation for your flight delay or cancellation!
Flight delays happen, but that doesn’t mean you have to accept them. You may be entitled to as much as 600€ in compensation if your flight has been delayed, cancelled or overbooked within the last three years. Claim Compensation Now >
Flight AC851 is code-shared by 10 airlines using the flight numbers A33074, AI6303, LH6846, ME4513, MS9631, OS8237, TG5812, TP8268, UA8585, UL2851
Other flights departing from London LHR: BA175, BA396, BA584, AY1332
Other flights arriving at Calgary YYC: AA2626, UA1832, F8623, WS1161
All flights connecting London LHR to Calgary YYC.
