United Flight AC6628 Deals & Information (2025/2026)

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United Flight 6628 Route Deals From $239

The cheapest prices found with in the last 7 days for return flights were $444 and $239 for one-way flights to Pierre Elliott Trudeau Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Sep 7 - Sat, Sep 13
PHL
Philadelphia Intl.
YUL
Pierre Elliott Trudeau Intl.
$444 Roundtrip, found 3 hours ago
$444
Roundtrip
found 3 hours ago
Select United flight, departing Sun, Sep 7 from Philadelphia Intl. to Pierre Elliott Trudeau Intl., returning Sat, Sep 13, priced at $444 found 3 hours ago
Sat, Aug 16 - Thu, Aug 21
PHL
Philadelphia Intl.
YUL
Pierre Elliott Trudeau Intl.
$454 Roundtrip, found 6 hours ago
$454
Roundtrip
found 6 hours ago
Select United flight, departing Sat, Aug 16 from Philadelphia Intl. to Pierre Elliott Trudeau Intl., returning Thu, Aug 21, priced at $454 found 6 hours ago
Sun, Sep 7 - Sat, Sep 13
PHL
Philadelphia Intl.
YUL
Pierre Elliott Trudeau Intl.
$510 Roundtrip, found 3 hours ago
$510
Roundtrip
found 3 hours ago
Select United flight, departing Sun, Sep 7 from Philadelphia Intl. to Pierre Elliott Trudeau Intl., returning Sat, Sep 13, priced at $510 found 3 hours ago