Air Canada Flight 423 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Air Canada Flight 423 Route Deals From $161

The cheapest prices found with in the last 7 days for return flights were $227 and $161 for one-way flights to Pearson Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Nov 19 - Wed, Nov 26
YUL
Pierre Elliott Trudeau Intl.
YYZ
Pearson Intl.
$227 Roundtrip, found 3 hours ago
$227
Roundtrip
found 3 hours ago
Select Air Canada flight, departing Wed, Nov 19 from Pierre Elliott Trudeau Intl. to Pearson Intl., returning Wed, Nov 26, priced at $227 found 3 hours ago
Wed, Nov 19 - Wed, Nov 26
YUL
Pierre Elliott Trudeau Intl.
YYZ
Pearson Intl.
$234 Roundtrip, found 3 hours ago
$234
Roundtrip
found 3 hours ago
Select Air Canada flight, departing Wed, Nov 19 from Pierre Elliott Trudeau Intl. to Pearson Intl., returning Wed, Nov 26, priced at $234 found 3 hours ago
Wed, Nov 19 - Wed, Nov 26
YUL
Pierre Elliott Trudeau Intl.
YYZ
Pearson Intl.
$307 Roundtrip, found 3 hours ago
$307
Roundtrip
found 3 hours ago
Select Air Canada flight, departing Wed, Nov 19 from Pierre Elliott Trudeau Intl. to Pearson Intl., returning Wed, Nov 26, priced at $307 found 3 hours ago

Frequently asked questions

What route does flight number AC423 take?
You'll be landing at Pearson Intl. Airport (YYZ) from YUL if you've booked a ticket on flight number AC423. You'll be in the air for 1 hour and 22 minutes during this journey. What's more, it conveniently operates non-stop.
What kind of plane is on flight number AC423?
Get set to cruise the skies aboard a Boeing 787-9 if you have a seat on flight AC423. Most flights from Montreal, QC Airport (YUL-Pierre Elliott Trudeau Intl.) to Toronto, ON Airport (YYZ-Pearson Intl.) use this model of aircraft.
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 AC423 flight with Travelocity, please visit our Customer Service Portal.