Packing for a trip to Koh Samui or Chiang Mai gets a lot less stressful once you actually know what your ticket includes.
Bangkok Airways, recently named World's Best Regional Airline at the 2025 Skytrax World Airline Awards, structures its baggage allowance by cabin class rather than a flat rule for every ticket, and the differences between economy, premium economy, and business class are bigger than you might expect.
Here's exactly what's included, what counts as a carry-on, and what happens if you go over.
Checked Baggage Allowance by Class
According to Bangkok Airways' own FAQ page, checked baggage allowance breaks down as follows for adult and child passengers:
| Cabin Class | Checked Baggage Allowance | Infant Allowance |
|---|---|---|
| Economy Class | 20 kg | 10 kg |
| Premium Economy Class | 30 kg | 10 kg |
| Business Class (Blue Ribbon) | 40 kg | 10 kg |
That's a meaningful spread across cabins, roughly doubling from economy to Blue Ribbon business class, which is worth factoring in if you're deciding whether the upgrade is worth it for a trip involving heavier luggage, like diving gear or a longer stay requiring more clothing.
The Single-Bag Weight Limit You Need to Know
Regardless of your total allowance, there's a hard ceiling on any individual checked bag.
Per a directive from the Airports of Thailand, no single piece of checked baggage can exceed 32 kilograms.
If one bag weighs more than that, it needs to be repacked into two bags before check-in, since airport ground handling equipment and safety regulations don't allow a heavier single piece to be processed.
This matters most for business class passengers with a 40 kg allowance, since you can't simply pack the full 40 kg into one suitcase.
Splitting your allowance across two bags, rather than trying to consolidate everything into one, avoids a scramble at the check-in counter.
Carry-On and Personal Item Rules
Every Bangkok Airways passenger, regardless of cabin, is permitted one carry-on bag plus one additional personal item, such as a laptop bag or purse, free of charge.
The personal item needs to fit under the seat in front of you, which is a fairly standard rule across most airlines but worth confirming if you're traveling with a bulkier bag you were hoping to bring on board separately.
Infants traveling without their own seat are the one exception to the carry-on allowance.
What Happens If You Go Over
Excess baggage charges on Bangkok Airways start from around THB 180 per kilogram on domestic flights, with international routes priced differently depending on the specific route, so it's worth checking the airline's current international baggage page before your trip if you're flying beyond Thailand.
If you know in advance that you'll exceed your allowance, purchasing additional baggage ahead of time, through the call center, a Bangkok Airways ticketing office, the website, or the Manage My Booking portal, is generally cheaper than paying the rate at the airport counter.
Prepaid additional baggage needs to be purchased at least four hours before your flight's departure, so this isn't something you can arrange at the last minute if you're cutting it close.
FlyerBonus Members Get an Extra Allowance
If you're a member of Bangkok Airways' FlyerBonus frequent flyer program, your checked baggage allowance increases beyond the standard cabin-class amounts, with the exact additional weight depending on your specific membership tier.
If you fly Bangkok Airways with any regularity, particularly for the Koh Samui or other island routes the airline operates almost exclusively, it's worth checking the current FlyerBonus tier benefits before your next trip, since the extra baggage allowance alone can offset the value of signing up.
Sporting Equipment and Special Items
Bangkok Airways accepts sports equipment as checked baggage, which is a relevant detail if you're heading to Koh Samui or another beach destination with diving or watersports gear.
For sports equipment not already covered by your standard checked baggage allowance, the fee for the first 15 kg is calculated at the equivalent of a 6 kg excess baggage charge, a discounted rate compared to standard excess fees, with any weight beyond 15 kg charged at the normal excess baggage rate.
If your sporting equipment includes items such as scuba tanks or other regulated equipment, the FAA's guidance on traveling with outdoor equipment explains that certain items may have additional safety and transportation requirements.
It's worth confirming your specific equipment type and weight with Bangkok Airways directly before booking, since rules can vary depending on the item.
Items to Avoid Packing in Checked Luggage
A few categories are worth keeping in your carry-on rather than checked baggage regardless of your allowance.
Essential medications should always travel with you rather than in checked luggage, in case bags are delayed or misplaced.
The FAA's lithium battery baggage guidance confirms that spare lithium batteries and power banks must be carried in carry-on baggage rather than checked luggage, while airlines may impose additional restrictions.
Lithium batteries are banned from checked bags entirely and must be carried on board, a rule that applies broadly across the airline industry, not just Bangkok Airways specifically.
Is Business Class Worth It Just for the Baggage Allowance?
If you're traveling with significantly more luggage than the standard economy allowance covers, comparing the cost of a business class upgrade against the cost of paying for extra baggage on economy is worth doing before you book.
Given that Bangkok Airways' Blue Ribbon business class also includes lounge access and a full meal even on short flights, the upgrade often makes sense as a package rather than purely a baggage decision.
Before deciding, it helps to read through recent Bangkok Airways passenger reviews to get a realistic sense of the full business class experience on your specific route, since the value of the upgrade depends on more than just the extra kilos.
Booking Tips
Given how much the total cost can shift depending on whether you need extra baggage, checking for an active promotion before booking is worth the extra couple of minutes.
A 20% off Bangkok Airways promo code applied at checkout can offset some or all of the cost of prepaying for extra baggage weight, particularly if you're booking a family trip or traveling with sports equipment that pushes you over the standard allowance.
Quick Reference: Bangkok Airways Baggage at a Glance
| Item | Allowance |
|---|---|
| Economy checked baggage | 20 kg |
| Premium Economy checked baggage | 30 kg |
| Business Class (Blue Ribbon) checked baggage | 40 kg |
| Infant checked baggage | 10 kg (all classes) |
| Carry-on | 1 bag + 1 personal item |
| Max weight per single checked bag | 32 kg |
| Domestic excess baggage rate | From THB 180/kg |
Also Read: Bangkok Airways Checked and Carry-On Baggage
Frequently Asked Questions
What is the checked baggage allowance for Bangkok Airways economy class?
Economy passengers get 20 kg of checked baggage, with infants receiving a separate 10 kg allowance.
How much checked baggage do I get in Bangkok Airways business class?
Blue Ribbon business class passengers receive 40 kg of checked baggage, double the economy allowance, plus a separate 10 kg allowance for infants.
Can I put all 40 kg of business class baggage in one suitcase?
No. Airports of Thailand regulations cap any single checked bag at 32 kg, so you'll need to split a 40 kg allowance across at least two pieces of luggage.
How much does excess baggage cost on Bangkok Airways?
Domestic excess baggage starts from around THB 180 per kilogram. International rates vary by route, so it's worth checking Bangkok Airways' current baggage page for your specific destination before flying.
Is it cheaper to prepay for extra baggage or pay at the airport?
Prepaying online, through the call center, or at a ticketing office is generally cheaper than paying the rate at the check-in counter, and it needs to be arranged at least four hours before departure.
Do FlyerBonus members get extra baggage allowance?
Yes. Bangkok Airways' FlyerBonus frequent flyer program includes additional checked baggage allowance on top of the standard cabin-class amounts, with the exact extra weight depending on membership tier.
The Bottom Line
Bangkok Airways' baggage policy is straightforward once you know the numbers:
20 kg in economy, 30 kg in premium economy, and 40 kg in Blue Ribbon business class, with a hard 32 kg cap on any single bag regardless of your total allowance.
If you're traveling with heavier luggage, sports equipment, or simply packing more than usual for a longer Thailand trip, weighing the cost of a business class upgrade against paying for excess baggage is worth doing before you book, especially once you factor in the lounge access and meal service that come along with the higher cabin.