Air Canada Flight AC404 Deals & Information (2025/2026)

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Air Canada Flight 404 Route Deals From $155

The cheapest prices found with in the last 7 days for return flights were $241 and $155 for one-way flights to Pierre Elliott Trudeau Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 8 - Fri, Aug 15
YYZ
Pearson Intl.
YUL
Pierre Elliott Trudeau Intl.
$241 Roundtrip, found 1 day ago
$241
Roundtrip
found 1 day ago
Select Air Canada flight, departing Fri, Aug 8 from Pearson Intl. to Pierre Elliott Trudeau Intl., returning Fri, Aug 15, priced at $241 found 1 day ago
Fri, Aug 8 - Fri, Aug 15
YYZ
Pearson Intl.
YUL
Pierre Elliott Trudeau Intl.
$242 Roundtrip, found 1 day ago
$242
Roundtrip
found 1 day ago
Select Air Canada flight, departing Fri, Aug 8 from Pearson Intl. to Pierre Elliott Trudeau Intl., returning Fri, Aug 15, priced at $242 found 1 day ago
Sat, Aug 16 - Tue, Aug 19
YYZ
Pearson Intl.
YUL
Pierre Elliott Trudeau Intl.
$246 Roundtrip, found 6 days ago
$246
Roundtrip
found 6 days ago
Select Air Canada flight, departing Sat, Aug 16 from Pearson Intl. to Pierre Elliott Trudeau Intl., returning Tue, Aug 19, priced at $246 found 6 days ago
Fri, Sep 12 - Wed, Sep 17
YYZ
Pearson Intl.
YUL
Pierre Elliott Trudeau Intl.
$263 Roundtrip, found 6 hours ago
$263
Roundtrip
found 6 hours ago
Select Air Canada flight, departing Fri, Sep 12 from Pearson Intl. to Pierre Elliott Trudeau Intl., returning Wed, Sep 17, priced at $263 found 6 hours ago
Sun, Sep 14 - Fri, Sep 19
YYZ
Pearson Intl.
YUL
Pierre Elliott Trudeau Intl.
$279 Roundtrip, found 3 days ago
$279
Roundtrip
found 3 days ago
Select Air Canada flight, departing Sun, Sep 14 from Pearson Intl. to Pierre Elliott Trudeau Intl., returning Fri, Sep 19, priced at $279 found 3 days ago
Fri, Sep 12 - Wed, Sep 17
YYZ
Pearson Intl.
YUL
Pierre Elliott Trudeau Intl.
$280 Roundtrip, found 6 hours ago
$280
Roundtrip
found 6 hours ago
Select Air Canada flight, departing Fri, Sep 12 from Pearson Intl. to Pierre Elliott Trudeau Intl., returning Wed, Sep 17, priced at $280 found 6 hours ago

Frequently asked questions

What route does flight number AC404 take?
AC404 flies straight from YYZ to YUL. During this trip, you'll be in the air for around 1 hour and 14 minutes. Book ahead to get your preferred seat.
What terminal does AC404 fly out of?
Direct flights between Toronton Pearson and Pierre Elliott Trudeau Intl. Airport (YUL) are served by flight number AC404, and passengers booked on this route normally depart from Terminal 1.
What kind of plane is on flight number AC404?
The route for flight number AC404 is nearly always Pearson Intl. Airport (YYZ) to YUL, and the Airbus A220-300 is the type of plane you'll probably be jetting off with.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your AC404 flight with Travelocity, please visit our Customer Service Portal.