United Flight AC8573 Deals & Information (2025/2026)

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United Flight 8573 Route Deals From $122

The cheapest prices found with in the last 7 days for return flights were $247 and $122 for one-way flights to Pearson Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Sep 22 - Thu, Sep 25
LGA
LaGuardia
YYZ
Pearson Intl.
$247 Roundtrip, found 1 day ago
$247
Roundtrip
found 1 day ago
Select United flight, departing Mon, Sep 22 from LaGuardia to Pearson Intl., returning Thu, Sep 25, priced at $247 found 1 day ago
Sun, Sep 21 - Wed, Sep 24
LGA
LaGuardia
YYZ
Pearson Intl.
$256 Roundtrip, found 8 hours ago
$256
Roundtrip
found 8 hours ago
Select United flight, departing Sun, Sep 21 from LaGuardia to Pearson Intl., returning Wed, Sep 24, priced at $256 found 8 hours ago
Mon, Aug 4 - Thu, Aug 7
LGA
LaGuardia
YYZ
Pearson Intl.
$667 Roundtrip, found 1 hour ago
$667
Roundtrip
found 1 hour ago
Select United flight, departing Mon, Aug 4 from LaGuardia to Pearson Intl., returning Thu, Aug 7, priced at $667 found 1 hour ago