What route does AC423 fly?

Air Canada flight AC423 operates from YUL (Montreal / Pierre Elliott Trudeau International Airport) to YYZ (Toronto Lester B. Pearson International Airport), connecting Montréal and Toronto.

How do I choose the best seat?

The best seat depends on your priorities. For extra legroom, choose seats near emergency exits or bulkhead rows. For quick boarding/deplaning, select seats near the front. Avoid seats near lavatories or galleys if you prefer a quieter flight. Window seats offer views and a wall to lean against, while aisle seats provide easier access to move around.

What do the different seat colors mean?

Green seats are typically available for selection, red seats are occupied or blocked, yellow/orange seats may have restrictions or extra fees, and blue seats often indicate premium or preferred seating with additional charges. Hover over any seat to see specific details and pricing.

Can I change my seat after booking?

Yes, most airlines allow seat changes after booking, though fees may apply depending on your fare type and desired seat. You can typically change seats through the airline's website, mobile app, or by calling customer service. Some seats become available closer to departure as the airline releases blocked inventory.

When is the best time to select seats?

The best time varies by strategy. Book immediately after purchasing your ticket for the widest selection, or wait until 24 hours before departure when airlines often release blocked premium seats. For popular routes, early selection is recommended. Our seat alerts can notify you when preferred seats become available.

Are the seat maps updated in real-time?

Our flight seat maps are updated regularly throughout the day to reflect current availability. However, seat availability can change rapidly, especially close to departure. We recommend checking the airline's official website for the most up-to-date information when making your final selection.

What if my preferred seat isn't available?

You can also check back periodically as seats often open up closer to departure when other passengers make changes or when the airline releases additional inventory.

AC423 Seat Map YUL → YYZ

Air Canada Airbus A220-300 Jan 05, 2026

Filter:

Available Window Aisle Extra Legroom Occupied

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AC423 Flight Details

Flight Number: AC423

Origin:

(Montreal / Pierre Elliott Trudeau International Airport, Montréal)

Destination:

(Toronto Lester B. Pearson International Airport, Toronto)

Flight Date: January 05, 2026

Aircraft: Airbus A220-300

Airline Routes: View Air Canada route map

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Aircraft Configuration

Aircraft Details

Seating info & configuration

Airline: Air Canada (AC)
Aircraft: Airbus A220-300
Seating: Main Deck: 137 seats

Economy: 125

84 19 22

67% Available

Business: 12

12 0 0

100% Available
Legend: Seat Status

Blocked

Occupied

Standard

Seat Types

Premium

Legroom

Window

Aisle

Features

EXIT Exit Row

LAV Lavatory

GAL Galley

CREW Crew

This Airbus A220-300 operates Air Canada flight AC423 from Montréal (YUL) to Toronto (YYZ). Browse the interactive seat map above to find the best seats for your journey, view real passenger reviews, and explore detailed cabin configurations to make an informed decision for your flight.

Best Seats on AC423

Based on legroom, location, and passenger preferences

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Best Window Seats

Seat 24F Economy
Seat 24A Economy
Seat 23F Economy

Best Aisle Seats

Seat 24D Economy
Seat 24C Economy
Seat 23D Economy

Quietest Seats

Seat 15C Economy
Seat 16D Economy
Seat 17A Economy

Recommendations based on seat characteristics, cabin position, and proximity to facilities. Availability may vary by date.

Seat Selection Assistance

Seat Alerts Require Payment

Seat alerts are available to users with a paid plan or credits. This feature monitors seat availability and notifies you when your preferred seats become available.

Passenger Reviews for AC423

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Frequently Asked Questions

AC423 Air Canada Seat Map from YUL to YYZ - Airbus A220-300