Singapore Airlines recently confirmed its flight schedules for the northern winter season from November 2025 through to March 2026, including days of operation and aircraft type allocation, which means it’s time for the latest update to our longstanding guide to the carrier’s onboard products in Business Class, by route and individual flight number.

SIA has already rebuilt its passenger seat capacity close to pre-pandemic levels, and this winter the carrier will operate around 91% of capacity by flight volumes, compared to the pre-COVID combined SIA / SilkAir operation.

That means an almost full return to a healthy mix of aircraft types, routes and cabin products for the airline, including the latest flat-bed seats on the Boeing 737-8 MAX aircraft fleet.

Five Business Class seat types

With five different Business Class seat types installed across the Singapore Airlines fleet, one of the most common questions we are asked by our readers is what kind of seat they will have on their upcoming flight, or which flight to pick on a particular route to ensure they secure their preferred seat type.

Since the pandemic we’ve said goodbye to two older seat models in this cabin – the 2009 Regional Business Class and the 2006 Long Haul Business Class, but two new narrow-body products have been introduced at the pointy end of Boeing 737s, following the merger of SilkAir into mainline SIA operations.

Here’s a summary of the five different Business Class seat types currently in use across the fleet.

Image	Seat Guide	Aircraft
2013 J	Here	Airbus A350 Long Haul (359 LH) Airbus A350 ULR (359 ULR) Boeing 777-300ER (77W)
2017 J	Here	Airbus A380 (388)
2018 RJ	Here	Airbus A350 Medium Haul (359 MH) Boeing 787-10 (787)
738 RJ	Here	Boeing 737-800 (738)
MAX RJ	Here	Boeing 737-8 MAX (7M8)

Singapore Airlines is launching a new long-haul Business Class seat for the Airbus A350 Long Haul and Airbus A350 ULR aircraft, due to start flying on retrofitted aircraft from early 2026, so look out for a 2026 J cabin joining the list next year!

Notable changes for winter 2025 / 26

In many cases Business Class seat types for the winter 2025 / 26 season are a continuation of the current allocation for each city on the network, but there are a few notable changes or points of interest worth highlighting this year:

• Auckland picks up Airbus A380 operation from mid-January 2026 to late March 2026, as we reported earlier this year, bringing the 2017 J product to the route once per day during this period, though Frankfurt loses out on the superjumbo as a result.
• Chengdu will become an all-narrow-body route from 2026, with its mix of Airbus A350 Long Haul and Boeing 787 flights replaced by Boeing 737-8 MAX aircraft, sporting just ten MAX RJ seats.
• Kathmandu finally bids farewell its Boeing 737-800 operation for the winter season, as the older type with ex-SilkAir 738 RJ recliner seats in Business Class is retired from service. Boeing 737-8 MAX and Boeing 787s will instead be deployed on these five-hour flights.
• Malé will see the Airbus A350 Long Haul taking over one of its two daily services this winter, which will mean an upgrade to 2013 J seats for those on SQ432/431 flights – a change from the usual 2018 RJ product but not the first time the route has seen these wider long-haul seats in use.
• Melbourne will see the return of regional cabin products for the first time in a while, with the Airbus A350 Medium Haul on SQ247/248 flights this winter – a shift from the 2013 J product to the narrower (but newer) 2018 RJ seats.
• Shanghai will see Airbus A380 services once per day on SQ830/833 during February and March 2026, as we recently highlighted, bringing the 2017 J product to the route once per day during this period.

Business Class seats by route and flight number

We’ve updated our seat type list through to the end of the IATA northern winter 2025 / 26 season (which runs from 26th October 2025 until 28th March 2026) to help you avoid the guesswork by offering an A-Z destination list, flight number by flight number, seat type by seat type.

To view flight number list and the corresponding seat type information, click the route of your choice to expand the table.

Routes are to and from Singapore (SIN).

Updated: 1st December 2025
Valid until: 28th March 2026

Non-Singapore routes

If you’re flying Business Class with Singapore Airlines on a flight sector not originating or ending in Singapore, here are the seat types used on those services.

Updated: 1st December 2025
Valid until: 28th March 2026

Note that it is not possible to buy or redeem tickets to travel solely on the following Singapore Airlines routes:

• Johannesburg to Cape Town
• Cape Town to Johannesburg

On these flights, you must be travelling to or from Singapore (see earlier tables listed above).

SIA’s fifth-freedom flights between Hong Kong and San Francisco are currently suspended, while its Taipei – Los Angeles and Rome – Copenhagen fifth-freedom routes have been discontinued.

Substitutions can occur

The data for this information is based on GDS timetables and programmed seat layouts, and is correct at 1st December 2025.

We keep it updated at least once per week to ensure it’s a useful long-term reference whenever aircraft types or seat types on a route change.

However, do bear in mind that the list may not be 100% up to date at all times and Singapore Airlines always reserves the right to substitute a different aircraft type at the last minute on any flight due to operational requirements.

This can occur even on the day of operation, so you’re never guaranteed a particular seat type until you step on board.

What about First Class and Suites?

We have an equivalent guide showing where the First Class seat and Suite types are flying around the SIA network, through to March 2026.

  SQ First Class Seat Types by Route

Spotted something wrong?

If you notice any errors or omissions in the list please contact us, and we’ll correct them as soon as we can.

(Cover Photo: MainlyMiles)