Thai Airways A350-900 Seat Selection Guide (2025)
Thai Airways operates the Airbus A350-900 on long-haul routes from Bangkok to London, Paris, Frankfurt, Zurich, Copenhagen, Melbourne, Sydney, Auckland, Tokyo, Osaka, Seoul and throughout Asia-Pacific. The A350 fleet has multiple configurations with different Business Class seats - understanding which version you're flying is essential.
All Thai A350 configurations feature 1-2-1 Royal Silk Business Class with direct aisle access - a significant upgrade from the older 2-2-2 layouts on some Thai 777-200ERs.
Cabin Layout Overview
Thai A350 Configuration Summary
| Version | Business | Economy | Business Seat Type | Key Differences |
|---|---|---|---|---|
| Type 1 | 32 seats (rows 11-19) | 289 seats | Stelia Solstys (staggered) | Window seats alternate between window-facing and aisle-facing |
| Type 2 | 33 seats (rows 11-19) | 301 seats | Collins Super Diamond (herringbone) | All seats angle toward window |
| Type 3 | 30 seats | 309 seats | Collins Super Diamond | Higher-density Economy |
All versions use 3-3-3 Economy seating. There is no Premium Economy on Thai A350s.
How to Identify Your Configuration
Check the seat map during booking:
Type 1 (Stelia Solstys): Business seats show alternating positions - some rows have window seats (A/K) closer to the window, others closer to the aisle.
Type 2 (Collins Super Diamond): Business seats show a uniform reverse-herringbone pattern angled toward the windows.
Both offer 1-2-1 with direct aisle access - either is acceptable, but seat selection strategy differs.
Best Seats in Thai Airways Royal Silk Business Class
Business Class Overview - Type 1 (Stelia Solstys Staggered)
- 32 seats in rows 11-19 in a staggered 1-2-1 configuration
- All seats have direct aisle access
- Forward-facing seats alternate between "window-facing" (closer to window) and "aisle-facing" (closer to aisle)
- Odd rows (11, 13, 15, 17, 19): Window seats A/K are closer to the window - more private
- Even rows (12, 14, 16, 18): Window seats A/K are closer to the aisle - less private
- Seat width: 21 inches
- Fully-flat bed
- IFE: 16 inch HD touchscreen
- Power: AC and USB at every seat
Best Business Seats - Type 1
| Category | Recommended Seats | Why |
|---|---|---|
| Most private solo | 11A, 13A, 15A, 17A, 11K, 13K, 15K, 17K | Odd-row window seats are window-facing - closest to window with maximum privacy and console separating from aisle. |
| Best for couples | 12D-G, 14D-G, 16D-G | Even-row centre pairs sit closest together; divider can be lowered. |
| Quietest | 15A, 15K, 16A, 16K | Mid-cabin rows away from forward galley (row 11) and rear galley (row 19). |
| Avoid window-facing if you want quick exit | Even-row windows (12A, 14A, etc.) | Even-row windows are aisle-facing - easier to exit but less private. |
Business Seats to Avoid - Type 1
| Category | Seats | Why |
|---|---|---|
| Front row | 11D, 11G | Row 11 centre seats adjacent to forward galley; crew activity throughout flight. |
| Last row - critical | 19A, 19D, 19G, 19K | Row 19 has crew storage in overhead bins above these seats - constant opening/closing; extremely disruptive. |
| Rear galley-adjacent | 18D, 18G | Centre seats closest to row 19 galley area. |
Business Class Overview - Type 2 (Collins Super Diamond Herringbone)
- 33 seats in rows 11-19 in a reverse-herringbone 1-2-1 configuration
- All seats angle toward the window with direct aisle access
- Even-row window seats (12A, 14A, 16A, 18A, 12K, 14K, 16K, 18K) are "true window" - closest to the window
- Odd-row window seats (11A, 13A, etc.) sit slightly closer to the aisle
- Industry-standard product also found on Qatar, American, Cathay and others
Best Business Seats - Type 2
| Category | Recommended Seats | Why |
|---|---|---|
| Most private solo | 12A, 14A, 16A, 18A, 12K, 14K, 16K, 18K | Even-row window seats in herringbone are "true window" positions with maximum privacy. |
| Best for couples | 13D-G, 15D-G | Odd-row centre pairs can lower divider for conversation. |
| Quietest | 14A, 14K, 15A, 15K, 16A, 16K | Mid-cabin rows away from both galleys. |
| Quick service | 11A, 11K | First row served first. |
Business Seats to Avoid - Type 2
| Category | Seats | Why |
|---|---|---|
| Front row centre | 11D, 11G | Adjacent to forward galley; crew activity and light. |
| Last row - critical | 19A, 19D, 19G, 19K | Crew overhead storage; constant disturbance throughout flight. |
| Bassinet positions | 12D, 12G | Bulkhead-equivalent centre seats may have bassinets installed. |
Seat-by-seat Business Class Summary (Both Types)
Use this as a quick rule-of-thumb if you cannot confirm the exact Business seat type.
| Row | A (window) | D (centre) | G (centre) | K (window) |
|---|---|---|---|---|
| 11 | Good (galley proximity) | Avoid - galley | Avoid - galley | Good (galley proximity) |
| 12-13 | Excellent | Good couples | Good couples | Excellent |
| 14-15 | Excellent | Good couples | Good couples | Excellent |
| 16-17 | Excellent | Good couples | Good couples | Excellent |
| 18 | Good | OK | OK | Good |
| 19 | Avoid - crew storage | Avoid - crew storage | Avoid - crew storage | Avoid - crew storage |
Best Seats in Thai Airways Economy Class
Economy Overview
- 289-309 seats in 3-3-3 configuration depending on version
- Seat width: 18 inches
- Seat pitch: 32 inches
- Seat recline: 6 inches
- IFE: 11 inch HD touchscreen at every seat
- Power: USB at every seat; AC power varies
- A350 cabin features: Larger windows, higher humidity, quieter engines, LED mood lighting
Best Economy Seats
| Category | Recommended Seats | Why |
|---|---|---|
| Exit row legroom | Check specific configuration | Exit rows offer significantly more pitch; fixed armrests; may not recline fully. |
| Bulkhead legroom | First row of each Economy section | Extra knee room; tray table in armrest; bassinet positions at centre. |
| Forward cabin quiet | First 5 rows of front Economy section | Less foot traffic; served earlier. |
| Best windows | Any A or K seat mid-cabin | A350 windows are larger than typical aircraft. |
Economy Seats to Avoid
| Category | Seats | Why |
|---|---|---|
| Last rows | Final 3 rows of each cabin section | Minimal or no recline; lavatory queue; odours. |
| Middle of middle | Any E or F seat | No window, no aisle - worst position in 3-3-3. |
| Rear Business galley proximity | Row directly behind Business | May experience more galley noise from Business Class. |
Known Quirks and Cabin Notes
| Quirk / Note | Details |
|---|---|
| Row 19 crew storage | Overhead bins above row 19 seats are used for crew storage. Crew constantly open/close these throughout the flight - extremely disruptive for sleeping. Avoid row 19 completely. |
| No WiFi | Thai Airways A350s do not have WiFi. Download content before boarding. |
| No individual air vents | A350s do not have personal air nozzles; cabin temperature is centrally controlled. |
| Multiple seat types | Thai operates both Stelia Solstys and Collins Super Diamond on A350s. Both are good 1-2-1 products. |
| No Premium Economy | Thai does not offer Premium Economy on A350. Business and Economy only. |
Summary - Best Seats Overall (Thai Airways A350)
| Cabin | Best Seats |
|---|---|
| Business (Type 1 Solstys) | 11A, 13A, 15A, 17A, 11K, 13K, 15K, 17K for solo (odd-row windows); 12D-G, 14D-G for couples. |
| Business (Type 2 Super Diamond) | 12A, 14A, 16A, 18A, 12K, 14K, 16K, 18K for solo (even-row windows); 13D-G, 15D-G for couples. |
| Business (both types) | Avoid row 19 completely due to crew storage overhead. |
| Economy | Exit rows for legroom; forward cabin for quiet; avoid last rows and middle seats (E/F). |
Thai Airways A350 - Frequently Asked Questions
What is the difference between the A350 seat types?
Type 1 uses Stelia Solstys (staggered forward-facing) where odd-row windows are most private. Type 2 uses Collins Super Diamond (reverse-herringbone) where even-row windows are most private. Both offer 1-2-1 with direct aisle access - either is good, but the best rows differ.
Which seats should I absolutely avoid?
Row 19 on all Thai A350s. The overhead bins above these seats are used for crew storage, meaning constant opening and closing throughout the flight. This is especially problematic on overnight flights.
Is Thai A350 Business Class fully flat?
Yes. All A350 Business Class seats convert to fully-flat beds with direct aisle access in every configuration.
Does Thai A350 have WiFi?
No. Thai Airways has not installed WiFi on its A350 fleet. Download entertainment and work content before boarding.
Is there Premium Economy?
No. Thai A350s are two-class only (Business and Economy). Some Thai 777-300ERs have Premium Economy, but the A350 does not.
Which window seats are most private?
On Type 1 (Solstys): Odd-row windows (11A, 13A, 15A, 17A, etc.) - these are window-facing. On Type 2 (Super Diamond): Even-row windows (12A, 14A, 16A, 18A, etc.) - these are "true window" positions. Check your seat map to determine which type you have before picking seats.
Comparable Aircraft
- Fiji Airways A350-900 Seat Selection Guide (2025) — Similar Collins Super Diamond cabin on Pacific routes
- Cathay Pacific A350-900 Seat Selection Guide — Premium regional A350 product
- Singapore Airlines A350-900 Long-Haul Seat Selection Guide — Similar A350 Business product