How many seats does this Airbus A350-900 have?

This Singapore Airlines Airbus A350-900 has 303 total seats across 2 cabin classes: Economy, Business.

What cabin classes are available on this aircraft?

This Airbus A350-900 offers 2 cabin classes: Economy, Business. Seat distribution: 263 Economy seats, 40 Business seats.

What route does SQ509 fly?

Singapore Airlines flight SQ509 operates from BLR (Kempegowda International Airport) to SIN (Singapore Changi Airport), connecting Bangalore and Singapore.

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.

SQ509 Seat Map BLR → SIN

Singapore Airlines Airbus A350-900 Oct 22, 2025

Filter:

Available Window Aisle Extra Legroom Occupied

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Main Deck

Business Class

11A

11D

11F

11K

12A

12D

12F

12K

14A

14D

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14K

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Economy Class

41A

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SQ509 Flight Details

Flight Number: SQ509

Origin:

(Kempegowda International Airport, Bangalore)

Destination:

(Singapore Changi Airport, Singapore)

Flight Date: October 22, 2025

Aircraft: Airbus A350-900

Airline Routes: View Singapore Airlines route map

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Flight Route Map

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Aircraft Configuration

Aircraft Details

Seating info & configuration

Airline: Singapore Airlines (SQ)
Aircraft: Airbus A350-900
Seating: Main Deck: 303 seats

Economy: 263

43 207 13

16% Available

Business: 40

3 31 6

8% 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 A350-900 operates Singapore Airlines flight SQ509 from Bangalore (BLR) to Singapore (SIN). 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 SQ509

Based on legroom, location, and passenger preferences

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Best Window Seats

Seat 44K Economy
Seat 62A Economy
Seat 20K Business

Best Aisle Seats

Seat 66H Economy
Seat 66G Economy
Seat 66D Economy

Quietest Seats

Seat 62A Economy
Seat 63H Economy
Seat 60H 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 SQ509

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Frequently Asked Questions

SQ509 Singapore Airlines Seat Map from BLR to SIN - Airbus A350-900