Air Canada Flight WS851 Deals & Information (2025/2026)

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Air Canada Flight 851 Route Deals From $929

The cheapest prices found with in the last 7 days for return flights were $470 and $929 for one-way flights to Calgary Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jan 14 - Wed, Jan 21
LHR
Heathrow
YYC
Calgary Intl.
$470 Roundtrip, found 11 hours ago
$470
Roundtrip
found 11 hours ago
Select Air Canada flight, departing Wed, Jan 14 from Heathrow to Calgary Intl., returning Wed, Jan 21, priced at $470 found 11 hours ago
Tue, Nov 18 - Thu, Nov 27
LHR
Heathrow
YYC
Calgary Intl.
$473 Roundtrip, found 6 days ago
$473
Roundtrip
found 6 days ago
Select Air Canada flight, departing Tue, Nov 18 from Heathrow to Calgary Intl., returning Thu, Nov 27, priced at $473 found 6 days ago
Wed, Jan 14 - Wed, Jan 21
LHR
Heathrow
YYC
Calgary Intl.
$477 Roundtrip, found 11 hours ago
$477
Roundtrip
found 11 hours ago
Select Air Canada flight, departing Wed, Jan 14 from Heathrow to Calgary Intl., returning Wed, Jan 21, priced at $477 found 11 hours ago
Fri, Feb 13 - Sun, Feb 22
LHR
Heathrow
YYC
Calgary Intl.
$477 Roundtrip, found 4 hours ago
$477
Roundtrip
found 4 hours ago
Select Air Canada flight, departing Fri, Feb 13 from Heathrow to Calgary Intl., returning Sun, Feb 22, priced at $477 found 4 hours ago
Wed, Jan 14 - Wed, Jan 21
LHR
Heathrow
YYC
Calgary Intl.
$483 Roundtrip, found 11 hours ago
$483
Roundtrip
found 11 hours ago
Select Air Canada flight, departing Wed, Jan 14 from Heathrow to Calgary Intl., returning Wed, Jan 21, priced at $483 found 11 hours ago