Singapore Airlines A350-900ULR Seat Selection Guide (2026)
Singapore Airlines' Airbus A350-900ULR exists for one job: the world's longest non-stop flights. Seven aircraft, two cabins, 161 seats and no Economy at all. This is the aircraft you get on Singapore–New York JFK, Singapore–Newark and Singapore–Los Angeles.
✈️ Quick Verdict
- Best Business seats: 24A/24K and 25A — two windows at the seat instead of the usual one, mid-cabin and quiet.
- Best Premium Economy seat: 41C — a true solo seat with a dedicated side locker and an aligned window.
- Seats to avoid: Business 16A/16K, 17D/17F and all of row 29. Premium Economy 42G, 42H, 43E/43F/43G.
- Version tell: if your seat map shows Economy seats, you are not on the ULR.
- Every Business seat has direct aisle access and a 78" flat bed — the choice is about position, not product.
Quick Verdict Table
| Aircraft | Airbus A350-900ULR (Ultra Long Range) |
| Fleet size | 7 aircraft |
| Configuration | 2 cabins, 161 seats — no Economy |
| Business Class | 67 seats, 1-2-1, rows 10–17 and 19–29 |
| Premium Economy | 94 seats, 2-4-2 tapering to 1-4-1, rows 31–43 |
| Version lottery | Yes — Singapore flies three different A350-900 configurations |
| Best Business seats | 24A/24K, 25A/25K, 23A/23K, 15A/15K |
| Best Premium Economy seat | 41C — true solo seat, side locker, aligned window |
| IFE | Panasonic eX3 on demand — 18" in Business, 13.3" touchscreen in Premium Economy |
| Power | 110V AC universal socket + USB-A at every seat |
| Wi-Fi | Panasonic eXConnect Ku-band, 10–40 Mbps |
| Typical routes | Singapore–New York JFK, Singapore–Newark, Singapore–Los Angeles |
Version Lottery — Three Different A350-900s
This is the single most common mistake travellers make with Singapore Airlines. The airline operates three distinct A350-900 configurations and they are not interchangeable.
| Configuration | Fleet | Total seats | Business | Prem. Econ. | Economy |
|---|---|---|---|---|---|
| A350-900 ULR (this guide) | 7 | 161 | 67 | 94 | — |
| A350-900 Long-Haul | 35 | 253 | 42 | 24 | 187 |
| A350-900 Medium-Haul | 23 | 303 | 40 | — | 263 |
How to tell which one you're on
- Economy seats on your seat map? You are not on the ULR. It is the only Singapore A350 with no Economy cabin at all.
- Premium Economy running from row 31 into the 40s? That's the ULR — the Long-Haul A350 has only 24 Premium Economy seats.
- Premium Economy but no Economy? Only the ULR. The Medium-Haul A350 has Economy but no Premium Economy.
- Route check. The ULR fleet is effectively dedicated to Singapore–JFK, Newark and Los Angeles. Under about 14 hours, it is almost certainly not a ULR.
For the passenger the ULR wins on Premium Economy and loses on nothing. The 94-seat cabin is nearly four times the size of the Long-Haul A350's, which means far more availability, far more chance of an empty seat beside you, and six genuine solo seats the Long-Haul aircraft does not have. Business Class is the identical seat on both.
Business Class (rows 10–17 and 19–29)
Seat: bespoke Jamco 1-2-1, Singapore's 2013 long-haul Business product — the same seat as the Long-Haul A350-900 and selected 777-300ERs.
Pitch 60" · Width 28" · 78" flat bed · 18" HD screen · 110V AC + USB-A
Two things to know before you pick. First, all 67 seats have direct aisle access — there is no seat where you are trapped. Second, the bed is not automatic: the seat back flips over manually to form the bed, so you need crew help if you want it made up while you step away. There are no privacy doors, no Bluetooth audio and no wireless charging.
The cabin splits in two around a galley and lavatory complex — a forward cabin of 23 seats and a rear cabin of 44. Rows 13 and 18 do not exist, row 10 has only seat 10A, and row 17 has only D and F.
✅ Best Business seats
- 24A · 24K · 25A — the pick. Two windows at the seat instead of the usual one, and mid-cabin so it stays quiet.
- Best for sleeping: 21A/K, 22A/K, 23A/K, 25K, 26A/K — over the wing, furthest from both galleys and lavatories.
- Best in the forward cabin: 14A/K and 15A/K — clear of the galley ahead and the lavatories behind.
- Best for couples: 12D/F, 20D/F, 21D/F, 22D/F, 23D/F — centre pairs with a raiseable divider, away from cabin ends.
- Most unusual: 10A — the only seat in row 10. Nothing beside it, nothing opposite it.
🚫 Business seats to avoid
- 16A and 16K. A plugged window means a restricted view, and a lavatory sits immediately behind.
- 17D and 17F. Last row of the forward cabin, with a lavatory behind and one either side at the A/K positions.
- 29A, 29D, 29F, 29K. Last row of Business with the rear lavatory bank immediately behind — the worst seats in the cabin.
- Consider carefully: 19A/19K are excellent windows but carry the bassinets; 28D/28F catch steady overnight lavatory traffic.
A note on the front rows. Received wisdom says avoid the first row of each Business cabin. On this aircraft that is largely wrong. Rows 10, 11 and 19 are good seats — the problems are at the back of each cabin, where the lavatories are. Row 19's only caveat is the bassinets, not the galley.
Premium Economy (rows 31–43)
Seat: Safran recliner with integrated calf rest and footrest.
Pitch 38" · Width 19" · 8" recline · 13.3" touchscreen · 110V AC + 2× USB-A · six-way headrest
The cabin is 2-4-2 from row 31 to row 39, then narrows as the fuselage tapers: 1-4-1 at rows 40, 41 and 42, and a four-across centre block only at row 43. That taper creates this cabin's defining feature — six true solo seats.
The solo seats: 40C, 40H, 41C, 41H, 42C, 42H
In rows 40–42 there is no A or K seat. The C and H positions become single seats with extra space and a dedicated low-level side locker where the outboard seat would otherwise be. For a solo traveller on an 18-hour flight this is the most valuable seat category on the aircraft — and there are only six. They are not equal:
| 41C | The best. Solo, side locker and a properly aligned window — the single best Premium Economy seat on the aircraft. |
| 41H | Same seat, but close enough to the rear lavatories to catch queuing traffic. |
| 40C, 40H, 42C | Solo and roomy, but the window is poorly aligned at these seats. |
| 42H | Avoid — a lavatory sits immediately behind, which cancels out the solo benefit. |
✅ Best Premium Economy seats
- 41C — best solo. Side locker, aligned window, clear of the lavatories.
- 31D and 31G — best pair. Bulkhead legroom plus a partial-width divider ahead, so there is open floor to one side as well.
- 33A/K and 35A/K — best windows. Properly aligned windows in the quiet forward-to-mid cabin.
- Best for couples: 33A+33C, 33H+33K, 35A+35C, 35H+35K.
- Quietest: rows 34–37, away from the forward divider and the rear lavatories.
🚫 Premium Economy seats to avoid
- 42G and 42H. Lavatory immediately behind.
- 43E, 43F and 43G. Last row, limited recline, rear lavatory bank immediately behind.
- Consider carefully: 31A/C/H/K have bulkhead legroom but the tray and screen live in the armrest (narrower seat) and there is no underseat storage for takeoff and landing. 31E and 31F are the bassinet positions.
- Consider carefully: 32A/K, 34A/K, 36A/K and 38A/K — the window sits behind the seat.
The window alignment quirk
In the 2-4-2 section window alignment alternates by row. Rows 33, 35, 37 and 39 line up with the seat. Rows 32, 34, 36 and 38 put the window behind you, so you lean back to look out. If a view matters, book an odd-numbered row.
Middle seats
E and F in the four-across centre block are middle seats in every row from 31 to 43. Fine for a family of four taking D–E–F–G together, difficult for anyone else on an 18-hour flight. There is no row where a middle seat becomes a good seat on this aircraft.
Cabin Features Compared
| Business Class | Premium Economy | |
|---|---|---|
| Seats | 67 | 94 |
| Layout | 1-2-1 | 2-4-2 → 1-4-1 → 4 centre |
| Rows | 10–17, 19–29 | 31–43 |
| Pitch / width | 60" / 28" | 38" / 19" |
| Recline | 180° flat bed, 78" | 8" recline + calf rest and footrest |
| Direct aisle access | 100% of seats | 6% (the six solo seats) |
| Screen | 18" HD, wired handset | 13.3" touchscreen |
| Power | 110V AC + USB-A | 110V AC + 2× USB-A |
| Privacy doors / Bluetooth / wireless charging | No / No / No | No / No / No |
| Bassinet positions | 19A, 19K | 31E, 31F |
Neither cabin has Bluetooth audio, wireless charging or privacy doors. Bring a wired headphone adapter — 18 hours is a long time with the supplied set.
Quick-Pick Summary
| If you are… | Book | Avoid |
|---|---|---|
| Solo, Business | 24A/K, 25A/K, 23A/K | 16A/K, 17D/F, row 29 |
| Solo, Premium Economy | 41C first, then 40C/40H/41H | 42H, 43E/F/G |
| A couple, Business | 12D/F, 21D/F, 22D/F, 23D/F | 17D/F, 29D/F |
| A couple, Premium Economy | 33A+33C, 35A+35C, 33H+33K, 35H+35K | Even-row windows (32/34/36/38) |
| Travelling with an infant | 19A/19K · 31E/31F | — |
| Wanting to avoid infants | Business rows 20–28 · PE rows 34–39 | 19A/K, 31E/F and the seats behind |
| Prioritising a view | 24A/K, 25A · PE odd rows 33–39 | PE even rows 32–38; Business 16A/K |
| First off the aircraft | 10A, 11A/K, 11D/F | Row 29, rows 40–43 |
| Trying to sleep | Business 21–26 A/K · PE 34–37 | Anything next to a lavatory |
Coming in 2027 — the cabin is being replaced
⚠️ Refit alert — ULR cabins change from Q1 2027
Singapore Airlines is spending S$1.1 billion (about US$835 million) retrofitting its entire long-haul A350-900 fleet — 41 aircraft including all seven ULRs — with all-new First and Business cabins. On the ULR: 4 First Class suites, 70 Business (new closed-door suites), 58 Premium Economy, 132 seats total, down from 161.
The programme slipped from Q2 2026 to Q1 2027, with the ULR fleet following in early 2027 and the full A350 fleet complete by 2030. Everything in this guide describes the current cabin, which stays in service on most ULR flights well into 2027. Once the retrofit begins the ULR fleet becomes its own version lottery — and Premium Economy availability drops 38% per aircraft.
FAQ
Does the A350-900ULR have an Economy cabin?
No. It is the only Singapore Airlines aircraft with no Economy cabin at all — 67 Business and 94 Premium Economy seats, 161 in total.
What is the single best seat on the aircraft?
In Business: 24A, 24K or 25A — mid-cabin true windows with two windows each rather than the usual one. In Premium Economy: 41C, a genuine solo seat with a dedicated side locker and an aligned window.
Is the Business seat the same as on the regular A350-900?
Yes — the same 2013 long-haul Business seat found on the A350-900 Long-Haul and selected 777-300ERs: 1-2-1, 60" pitch, 78" flat bed.
Are there really solo seats in Premium Economy?
Six of them: 40C, 40H, 41C, 41H, 42C and 42H. The fuselage tapers at the rear so rows 40–42 drop to 1-4-1, and the single outboard seats get extra space plus a low side locker. 41C is the pick; skip 42H, which has a lavatory immediately behind.
How do I know whether I'm on the ULR or the Long-Haul A350?
If your seat map shows Economy seats, you are not on the ULR. The ULR is Business and Premium Economy only, with Premium Economy running from row 31 into the low 40s. The Long-Haul A350's Premium Economy cabin is just 24 seats.
Why do some Premium Economy windows not line up?
In the 2-4-2 section alignment alternates by row. Even rows — 32, 34, 36, 38 — have the window set behind the seat. Odd rows — 33, 35, 37, 39 — line up properly.
Is there Wi-Fi, and is it any good?
Yes — Panasonic eXConnect Ku-band at roughly 10–40 Mbps. Reliable for browsing, messaging and light streaming, but not a high-speed connection.