How many seats does this Airbus A330-300 have?

This Aer Lingus Airbus A330-300 has 317 total seats across 2 cabin classes: Business, Economy.

What cabin classes are available on this aircraft?

This Airbus A330-300 offers 2 cabin classes: Business, Economy. Seat distribution: 30 Business seats, 287 Economy seats.

What route does EI121 fly?

Aer Lingus flight EI121 operates from DUB (Dublin Airport) to MCO (Orlando International Airport), connecting Dublin and Orlando.

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.

EI121 Seat Map DUB → MCO

Aer Lingus 333 May 10, 2026

Filter:

Available Window Aisle Extra Legroom Occupied

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100%

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EI121 Flight Details

Flight Number: EI121

Origin:

(Dublin Airport, Dublin)

Destination:

(Orlando International Airport, Orlando)

Flight Date: May 10, 2026

Aircraft: 333

Airline Routes: View Aer Lingus route map

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Aircraft Configuration

Aircraft Details

Seating info & configuration

Airline: Aer Lingus (EI)
Aircraft: 333
Seating: Main Deck: 317 seats

Economy: 287

98 36 153

34% Available

Business: 30

15 8 7

50% Available
Legend: Seat Status

Blocked

Occupied

Standard

Seat Types

Premium

Legroom

Window

Aisle

Features

EXIT Exit Row

LAV Lavatory

GAL Galley

CREW Crew

This 333 operates Aer Lingus flight EI121 from Dublin (DUB) to Orlando (MCO). 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 EI121

Based on legroom, location, and passenger preferences

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Best Window Seats

Seat 3A Business
Seat 4A Business
Seat 5A Business

Best Aisle Seats

Seat 3A Business
Seat 4A Business
Seat 6A Business

Quietest Seats

Seat 3A Business
Seat 4A Business
Seat 5A Business

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 EI121

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Frequently Asked Questions

EI121 Aer Lingus Seat Map from DUB to MCO - 333