Thai Airways Baggage Allowance Guide
Quick Reference
Thai Airways Baggage Allowance: Your Key Numbers
Economy carry-on
1 bag up to 7 kg on every fare, plus a small handbag or laptop bag up to 1.5 kg. Max carry-on: 56 x 45 x 25 cm.
Checked baggage from Australia
Economy Standard/Saver: 1 bag, 23 kg. Economy Full/Flex: 2 bags, 23 kg each. Royal Silk business: 2 bags, 32 kg each.
Biggest change for 2026
Thai Airways switched from a total weight allowance to the piece concept on 2 March 2026. Your allowance is now a set number of bags, not a shared kilogram pool.
Max single bag
32 kg and 158 cm total linear dimensions (length plus width plus height) at the top end, 23 kg on Economy fares.
Royal Orchid Plus boost
ROP Gold and Platinum members get 1 extra bag on top of their fare's standard allowance, in any cabin.
Routes
Nonstop from Sydney, Melbourne and Perth to Bangkok, with Perth back on a daily schedule in 2026.
Thai Airways baggage allowance from Australia: carry-on is 1 bag up to 7 kg and 56 x 45 x 25 cm on every fare, plus a small personal item up to 1.5 kg. Checked baggage runs on the piece concept as of 2 March 2026: Economy Standard and Saver fares include 1 bag at 23 kg, Economy Full and Flex fares include 2 bags at 23 kg each, and Royal Silk business class includes 2 bags at 32 kg each. This replaces Thai Airways' previous total-weight system.
Thai Airways flies nonstop between Australia and Bangkok from Sydney, Melbourne and Perth, with the Perth route back to a daily schedule in 2026. On 2 March 2026, Thai Airways changed its baggage allowance from a total weight shared across your bags to the piece concept, where each fare includes a fixed number of bags at a set weight.
This guide covers cabin baggage dimensions, checked baggage by fare and cabin under the piece concept, the March 2026 change, excess and overweight fees, and suitcase recommendations. Figures are drawn from Thai Airways' published baggage policy and cross-checked against current industry reporting, verified July 2026.
Thai Airways Cabin Baggage Dimensions and Weight Limits
Every Thai Airways fare includes one carry-on bag, which must fit in the overhead locker. The maximum size is 56 x 45 x 25 cm including wheels and handles, and the maximum weight is 7 kg.
You can also bring a small personal item, such as a handbag or laptop bag, up to 37.5 x 25 x 12.5 cm and 1.5 kg, free of charge and in addition to your main carry-on. Thai Airways enforces both the weight and dimension limits at check-in and at the gate, so a bag that is technically light but oversized can still be refused as cabin baggage.
| Cabin | Carry-on bags | Max carry-on size and weight | Personal item |
|---|---|---|---|
| Economy (all fares) | 1 carry-on bag | 56 x 45 x 25 cm, 7 kg | 37.5 x 25 x 12.5 cm, 1.5 kg |
| Premium Economy / Premium Economy Plus | 1 carry-on bag | 56 x 45 x 25 cm, 7 kg | 37.5 x 25 x 12.5 cm, 1.5 kg |
| Royal Silk / Royal First | 1 carry-on bag, sometimes 2 for Star Alliance Gold on multi-carrier itineraries | 56 x 45 x 25 cm, 7 kg | 37.5 x 25 x 12.5 cm, 1.5 kg |
Carry-on size and weight are the same across every cabin. What changes by fare and cabin is the checked baggage allowance, covered below.
Source: thaiairways.com baggage policy pages, cross-checked against current airline industry reporting - verified July 2026
Thai Airways Checked Baggage Allowance by Fare (Piece Concept)
The table below shows Thai Airways' checked baggage allowance for flights between Australia and Bangkok under the piece concept, which applies to travel from 2 March 2026 onward. Every checked bag must stay within 158 cm total linear dimensions, regardless of fare or cabin.
| Cabin | Fare | Free checked bags | Max weight per bag |
|---|---|---|---|
| Economy | Standard / Saver | 1 bag | 23 kg |
| Economy | Full / Flex | 2 bags | 23 kg each |
| Premium Economy / Premium Economy Plus | Standard | 2 bags | 32 kg each |
| Royal Silk (Business) | Standard | 2 bags | 32 kg each |
| Royal First | Standard | 3 bags | 32 kg each |
| Royal First | Points redemption | 2 bags | 32 kg each |
Royal Orchid Plus Gold and Platinum members receive 1 extra checked bag on top of their fare's standard allowance, in any cabin. This applies on tickets booked wholly online or involving interline transport with a partner airline that recognises the benefit.
Source: thaiairways.com baggage policy pages, cross-checked against current airline industry reporting - verified July 2026
The 2026 Piece Concept Change
The change applies to tickets issued from 25 November 2025 for most routes including Australia, or 28 November 2025 for itineraries touching the Americas. New rules apply to travel from 2 March 2026 onward regardless of ticket purchase date.
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Practical effect Under the old weight concept, an Economy passenger with a 30 kg allowance could split it across two bags freely. Economy Standard or Saver now includes only 1 bag at 23 kg, so splitting across two bags means upgrading the fare or paying for an extra piece.
Thai Airways Excess and Overweight Baggage Fees
Under the piece concept, Thai Airways charges a flat rate per additional piece beyond your fare's allowance, based on a zone system tied to your route. A separate overweight surcharge applies if an individual bag is between 23 kg and 32 kg.
| Bag condition | Weight or size | Fee structure |
|---|---|---|
| Standard checked bag | Up to 23 kg (Economy) or 32 kg (premium cabins), up to 158 cm combined | Included within your fare's piece allowance |
| Extra piece beyond your allowance | Within the same weight and size limits | Flat zone-based fee, varies by route |
| Overweight | 23 kg to 32 kg on an Economy fare | Zone-based overweight surcharge, on top of any extra-piece fee |
| Maximum weight | Above 32 kg | Not accepted as standard checked baggage |
Thai Airways prices excess baggage by zone, not a single flat global rate. Confirm the exact fee for your route with Thai Airways or at booking.
Source: thaiairways.com baggage policy pages, cross-checked against current airline industry reporting - verified July 2026
Thai Airways' Routes from Australia
| Australian city | Thailand gateway | Schedule |
|---|---|---|
| Sydney | Bangkok | Nonstop, year-round |
| Melbourne | Bangkok | Nonstop, year-round |
| Perth | Bangkok | Nonstop, back to a daily schedule in 2026 |
Thai Airways also connects other Australian cities to its network through Star Alliance codeshare partners, though the baggage rules covered in this guide apply specifically to flights ticketed and operated as Thai Airways services.
Source: Thai Airways route pages and current schedule reporting - verified July 2026
Which Suitcase for Your Thai Airways Trip?
🌏
Economy Standard or Saver - most trips
23 kg checked allowance in a single bag. A lightweight 67 cm case (3.2 kg) leaves 19.8 kg to pack, workable for up to 10 days with careful packing.
Checked: 1 bag, 23 kg
Shop Medium Soft-Side
🧳
Economy Full or Flex - 2 bags
Split 46 kg across 2 medium cases rather than one bag close to the 23 kg limit, useful if you're bringing back souvenirs or duty-free.
Checked: 2 bags, 23 kg each
Shop 2-Piece Luggage Sets
✈️
Royal Silk business class
Split 64 kg across 2 cases, for example a large case at 30 kg and a medium at 20 kg, with plenty of headroom left over.
Checked: 2 bags, 32 kg each
Shop Large Hard-Side + Medium Set
How Thai Airways Compares on the Australia to Bangkok Route
Thai Airways' Economy Standard allowance (1 bag, 23 kg, under the new piece concept) compared with other carriers flying between Australia and Southeast Asia:
Thai Airways (Economy Standard)
23 kg
1 free bag under the new piece concept. Full/Flex fares: 2 bags. Carry-on: 56 x 45 x 25 cm, 7 kg.
Singapore Airlines
25 to 30 kg
Weight concept. Value/Lite fares: 25 kg. Flexi/Standard: 30 kg.
Cathay Pacific
30 kg
Weight concept, no piece limit. Multiple bags allowed within the 30 kg total.
China Southern
2 x 23 kg
Standard fare, piece concept. Saver fare: 1 bag. Light fare: no bag.
Reflects standard published Economy fares as of July 2026. Older comparison articles may still describe Thai Airways' retired weight concept.
Common Thai Airways Baggage Mistakes to Avoid
- Booking Economy Standard or Saver expecting 2 bags. These fares include 1 checked bag under the piece concept, not 2. Full and Flex fares include 2.
- Packing a bag close to 23 kg without weighing it. Thai Airways enforces the weight and 158 cm size limits strictly, including gate checks on carry-on bags.
- Assuming a flat global excess fee. Thai Airways prices extra pieces and overweight bags by route zone, so the fee for a Sydney departure differs from other routes.
- Missing the Royal Orchid Plus bag boost. Gold and Platinum members get 1 extra free checked bag in any cabin, on top of the fare's standard allowance.
Frequently Asked Questions
How many bags can I check on Thai Airways from Australia?
Since 2 March 2026, Thai Airways uses the piece concept rather than a total weight allowance. Economy Standard and Saver fares include 1 checked bag at 23 kg, Economy Full and Flex fares include 2 bags at 23 kg each, and Royal Silk business class includes 2 bags at 32 kg each.
What changed with Thai Airways baggage in 2026?
Thai Airways switched from the weight concept, where all checked bags shared one total kilogram allowance, to the piece concept, where each fare and cabin includes a set number of bags. The change applies to travel from 2 March 2026 onward, on tickets issued from 25 or 28 November 2025 depending on the route.
What size carry-on bag can I bring on Thai Airways from Australia?
Your carry-on can measure up to 56 x 45 x 25 cm and weigh up to 7 kg, the same limit across every cabin. A handbag, laptop bag or similar personal item up to 37.5 x 25 x 12.5 cm and 1.5 kg is also allowed free of charge.
How many checked bags does Royal Silk business class include?
Royal Silk business class includes 2 checked bags at up to 32 kg each. Royal First class includes 3 bags at up to 32 kg each, reduced to 2 bags on points-based redemption tickets.
Which Australian cities does Thai Airways fly to?
Thai Airways operates nonstop flights from Sydney, Melbourne and Perth to Bangkok. The Perth to Bangkok route returned to a daily schedule in 2026 after a period of reduced frequency.
What happens if my Thai Airways checked bag is overweight?
A bag between 23 kg and 32 kg on an Economy fare incurs an overweight surcharge on top of any fee for exceeding your piece allowance. The exact charge is based on a zone rate that varies by route, so check the current rate with Thai Airways or at booking.
Other Airline Guides from Tosca
See all airlines flying from Australia in the Tosca Airline Baggage Comparison Hub.