Air Canada Flight 851 Deals & Information (2026/2027)

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Air Canada Flight 851 Route Deals From $1,019

The cheapest prices found with in the last 7 days for return flights were $736 and $1,019 for one-way flights to Calgary Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jan 12 - Tue, Feb 2
LHR
Heathrow
YYC
Calgary Intl.
$736 Roundtrip, found 2 days ago
$736
Roundtrip
found 2 days ago
Select Air Canada flight, departing Tue, Jan 12 from Heathrow to Calgary Intl., returning Tue, Feb 2, priced at $736 found 2 days ago
Tue, Jan 12 - Tue, Feb 2
LHR
Heathrow
YYC
Calgary Intl.
$736 Roundtrip, found 2 days ago
$736
Roundtrip
found 2 days ago
Select Air Canada flight, departing Tue, Jan 12 from Heathrow to Calgary Intl., returning Tue, Feb 2, priced at $736 found 2 days ago
Sat, Feb 6 - Tue, Feb 16
LHR
Heathrow
YYC
Calgary Intl.
$739 Roundtrip, found 2 days ago
$739
Roundtrip
found 2 days ago
Select Air Canada flight, departing Sat, Feb 6 from Heathrow to Calgary Intl., returning Tue, Feb 16, priced at $739 found 2 days ago
Tue, Jan 12 - Tue, Feb 2
LHR
Heathrow
YYC
Calgary Intl.
$744 Roundtrip, found 2 days ago
$744
Roundtrip
found 2 days ago
Select Air Canada flight, departing Tue, Jan 12 from Heathrow to Calgary Intl., returning Tue, Feb 2, priced at $744 found 2 days ago
Sat, Feb 6 - Tue, Feb 16
LHR
Heathrow
YYC
Calgary Intl.
$747 Roundtrip, found 2 days ago
$747
Roundtrip
found 2 days ago
Select Air Canada flight, departing Sat, Feb 6 from Heathrow to Calgary Intl., returning Tue, Feb 16, priced at $747 found 2 days ago
Tue, Jan 12 - Tue, Feb 2
LHR
Heathrow
YYC
Calgary Intl.
$752 Roundtrip, found 2 days ago
$752
Roundtrip
found 2 days ago
Select Air Canada flight, departing Tue, Jan 12 from Heathrow to Calgary Intl., returning Tue, Feb 2, priced at $752 found 2 days ago
Sat, Feb 6 - Tue, Feb 16
LHR
Heathrow
YYC
Calgary Intl.
$762 Roundtrip, found 2 days ago
$762
Roundtrip
found 2 days ago
Select Air Canada flight, departing Sat, Feb 6 from Heathrow to Calgary Intl., returning Tue, Feb 16, priced at $762 found 2 days ago