What aircraft does SQ31 use?

Singapore Airlines flight SQ31 operates on a Airbus A350-900 from SFO to SIN.

How long is the SQ31 flight?

The estimated flight time for SQ31 from SFO to SIN is approximately 17h 29m covering 13,581 km (8,439 miles).

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 SQ31 fly?

Singapore Airlines flight SQ31 operates from SFO (San Francisco International Airport) to SIN (Singapore Changi Airport), connecting San Francisco 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.

SQ31 Seat Map — San Francisco to Singapore

Singapore Airlines Airbus A350-900 Apr 16, 2025

Singapore Airlines flight SQ31 operates from San Francisco (SFO) to Singapore (SIN) using a Airbus A350-900 with 229 seats across Economy and Business. Use the interactive seat map below to find the best seat for your flight.

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

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Economy Class

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SQ31 Flight Details

Flight Number: SQ31

Origin:

(San Francisco International Airport, San Francisco)

Destination:

(Singapore Changi Airport, Singapore)

Distance: 13,581 km (8,439 mi)

Est. Duration: 17h 29m

Flight Date: April 16, 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

141 12 34

75% Available

Business: 42

12 23 7

29% 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 SQ31 from SFO to SIN

This Airbus A350-900 operates Singapore Airlines flight SQ31 from San Francisco (SFO) 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 SQ31

Based on legroom, location, and passenger preferences

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Best Window Seats

Seat 59K Economy
Seat 59A Economy
Seat 58K Economy

Best Aisle Seats

Seat 44H Economy
Seat 21D Business
Seat 21F Business

Quietest Seats

Seat 55C Economy
Seat 55A Economy
Seat 54K Economy

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

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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.