How many seats does this Airbus A350-900 have?

This Singapore Airlines Airbus A350-900 has 229 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: 187 Economy seats, 42 Business seats.

What route does SQ51 fly?

Singapore Airlines flight SQ51 operates from IAH (George Bush Intercontinental Houston Airport) to SIN (Singapore Changi Airport), connecting Houston 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.

SQ51 Seat Map IAH → SIN

Singapore Airlines Airbus A350-900 Oct 25, 2025

Filter:

Available Window Aisle Extra Legroom Occupied

View:

100%

Pinch to zoom • Double-tap to zoom in

Main Deck

Business Class

11A

11D

11F

11K

12A

12D

12F

12K

14A

14D

14F

14K

15A

15D

15F

15K

16A

16D

16F

16K

17A

17D

17F

17K

18D

18F

19A

19D

19F

19K

20A

20D

20F

20K

21A

21D

21F

21K

22A

22D

22F

22K

Economy Class

41A

41B

41C

41D

41E

41G

41H

41J

41K

42A

42B

42C

42D

42E

42G

42H

42J

42K

43A

43B

43C

43D

43E

43G

43H

43J

43K

44A

44B

44C

44D

44E

44G

44H

44J

44K

45A

45B

45C

45D

45E

45G

45H

45J

45K

46A

46B

46C

46H

46J

46K

47B

47C

47D

47E

47G

47H

47J

48A

48B

48C

48D

48E

48G

48H

48J

48K

49A

49B

49C

49D

49E

49G

49H

49J

49K

50A

50B

50C

50D

50E

50G

50H

50J

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51A

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51C

51D

51E

51G

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51J

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52A

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52C

52D

52E

52G

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53A

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53D

53E

53G

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54A

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55A

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57A

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59A

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60A

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60D

60E

60G

60H

60J

60K

61A

61B

61C

61D

61E

61G

61H

61J

61K

62D

62E

62G

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SQ51 Flight Details

Flight Number: SQ51

Origin:

(George Bush Intercontinental Houston Airport, Houston)

Destination:

(Singapore Changi Airport, Singapore)

Flight Date: October 25, 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: 229 seats

Economy: 187

64 91 32

34% Available

Business: 42

2 32 8

5% Available
Legend: Seat Status

Blocked

Occupied

Standard

Seat Types

Premium

Legroom

Window

Aisle

Features

EXIT Exit Row

LAV Lavatory

GAL Galley

CREW Crew

Singapore Airlines Airbus A350-900 seat map layout for flight SQ51 from IAH to SIN

This Airbus A350-900 operates Singapore Airlines flight SQ51 from Houston (IAH) 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 SQ51

Based on legroom, location, and passenger preferences

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Best Window Seats

Seat 58A Economy
Seat 57K Economy
Seat 57A Economy

Best Aisle Seats

Seat 42C Economy
Seat 43C Economy
Seat 44D Economy

Quietest Seats

Seat 48G Economy
Seat 49A Economy
Seat 50A 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 SQ51

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Frequently Asked Questions

SQ51 Singapore Airlines Seat Map from IAH to SIN - Airbus A350-900