What is AirAsia's carry-on limit on Thai domestic routes?

AirAsia enforces a 7 kg cabin bag limit on all domestic Thailand routes. VietJet Air Thailand applies the same 7 kg limit. Both airlines weigh bags at check-in counters. Bag dimensions must not exceed 56 × 36 × 23 cm. Gate agents on busy routes between Bangkok and Chiang Mai or Phuket will flag overweight bags.

Can I buy toiletries cheaply in Thailand?

Yes. Thailand's 7-Eleven and FamilyMart convenience stores stock shampoo, conditioner, body wash, deodorant, toothpaste, and sunscreen at very low prices. Watsons and Boots pharmacies in malls sell full-size and travel-size products. Buying locally saves 400–600 g and eliminates the liquids bag problem entirely.

What clothing do I need for Thai temples?

Thai temples (wats) require covered shoulders and knees for both men and women. Lightweight scarves serve double duty — tied around the waist as a sarong or draped over shoulders. Many popular temples like Wat Phra Kaew provide fabric wraps at the entrance. Pack one lightweight cotton or linen scarf and it covers all temple visits.

How is security at Bangkok Suvarnabhumi airport?

Bangkok Suvarnabhumi (BKK) security is thorough. Laptops must come out of bags, liquids go in the tray separately, and shoes are typically x-rayed. Allow extra time during peak hours. Domestic departures from Don Mueang (DMK) move faster. Both airports require you to show your boarding pass before the security checkpoint.

What is the carry-on strategy for Thailand's southern islands?

Flights to Koh Samui (USM) use Bangkok Airways, which allows 20 kg checked or a generous cabin allowance on most fares. Krabi (KBV) and Phuket (HKT) are served by full-service and budget carriers. For the islands themselves, use a small dry bag as a beach bag — buy it locally for under 200 baht rather than packing one from home.

Carry-On Only for Thailand: Beat 7 kg Limits and Pack Smart

Thailand is hot, humid, and extremely well-stocked with cheap everything. The carry-on case here is strong: budget heavily for what you buy locally, pack the minimum, and let Thailand's convenience stores, markets, and pharmacies fill any gaps. The challenge is the strict 7 kg limit applied by AirAsia and VietJet on domestic hops — two of the most-used airlines on routes between Bangkok, Chiang Mai, Phuket, and Krabi.

The 7 kg Reality on Thai Budget Routes

AirAsia and VietJet Air Thailand both cap cabin bags at 7 kg, and they enforce it. On busy routes — Bangkok Don Mueang to Chiang Mai or Phuket — gate agents weigh bags at check-in. There is no "they never check" safety net on these routes. If your bag registers 7.2 kg, you pay an excess fee that costs more than a checked bag booked online in advance.

The practical solution: weigh your packed bag at home with a handheld luggage scale (buy one for under $10). Target 6.5 kg packed so you have 500 g buffer for a water bottle, phone, and items picked up before you board.

Clothing for Thailand's Heat

Thailand is hot year-round. The cool season (November to February) in northern Thailand can reach 10–15°C at night in Chiang Mai, so a light layer helps. Everywhere else, every season, it is 28–38°C and humid.

What to pack:

4–5 lightweight moisture-wicking tops or breathable cotton shirts
2 pairs of lightweight shorts or thin linen trousers
1 lightweight scarf (temples, cool restaurants, evening cover)
Comfortable walking sandals and one pair of trainers
5–6 pairs of quick-dry underwear
1 packable rain layer (monsoon season May to October)

Leave swimwear out. Buy a pair of beach shorts or a swimsuit at any Chatuchak-style market or beachside stall for under 200–300 baht. Better fit, lighter bag.

Toiletries: Buy at 7-Eleven

Thailand has a 7-Eleven on nearly every street in Bangkok and in every beach town. These convenience stores sell shampoo, conditioner, body wash, deodorant, toothpaste, and face wash at prices well below European or Australian pharmacy prices. Watsons and Boots branches in Central, Terminal 21, and major malls carry full international brands including Dove, Pantene, Nivea, and local Thai brands that work well in tropical humidity.

Skip the liquids bag. Pack a solid shampoo bar and solid deodorant for the first day, then restock at 7-Eleven after landing. This approach saves 400–600 g instantly.

Mosquito Repellent

Mosquitoes in Thailand carry dengue fever — repellent is not optional. Liquid DEET spray falls under the 100 ml carry-on rule. Options:

Pack a solid repellent stick (no liquid classification, under 100 ml limit doesn't apply)
Bring one 100 ml DEET roll-on through security and buy a full-size bottle at a Thai pharmacy
Buy repellent on arrival — Sketolene and Autan are widely sold at 7-Eleven for around 50–80 baht

Temple Clothing Strategy

Most Thai wats require covered shoulders and knees. The lightweight solution: one cotton or bamboo scarf, approximately 70 × 180 cm, weighing under 100 g. Worn around the waist it becomes a sarong for knees. Draped over shoulders it meets the upper body requirement. Tied as a head covering at some stricter sites. One piece of cloth handles all scenarios.

Many major tourist temples like Wat Phra Kaew provide wrap cloths at the entrance. But quality varies and you can't always count on availability. Pack the scarf.

Bangkok Suvarnabhumi Security

Suvarnabhumi is a large, busy hub and security can be thorough during peak periods. Arrive at least 90 minutes before an international departure. Laptops must come out of bags and go in a tray. Liquids must be in a clear bag. Remove shoes and belts. The process is professional but not fast.

Don Mueang (DMK), the budget airline terminal, moves faster — AirAsia and Nok Air operate from here, and the domestic terminal is efficient. Allow 60 minutes minimum.

Southern Islands Carry-On Strategy

Koh Samui has its own airport (USM) served by Bangkok Airways, which is a full-service carrier with a more generous cabin allowance. Phuket (HKT) and Krabi (KBV) are served by AirAsia and Thai AirAsia — the 7 kg limit applies.

For island-hopping between Koh Tao, Koh Phangan, and Koh Samui, you'll use ferries and speedboats rather than planes. Storage space on boats is limited — a 40 L soft carry-on fits in a cabin compartment much more easily than a hard-sided 55 L bag. Pack accordingly if you plan island transfers by sea.