Thailand made a sharp shift in airport smoking policy in February 2019, when indoor smoking rooms at every major Thai airport were closed. The change brought Thailand into line with most other Southeast Asian countries (Singapore, Malaysia) but leaves it more restrictive than its eastern neighbours — Indonesia, Vietnam, and the Philippines all maintain indoor airport smoking rooms.
Today’s reality: Bangkok Suvarnabhumi (BKK) and Don Mueang (DMK), Phuket (HKT), Chiang Mai (CNX), Krabi (KBV), and Koh Samui (USM) all rely on outdoor zones only. None of them have post-security indoor smoking. The big consequence for travellers: a smoking-permitted layover at Bangkok requires exiting customs and security, which is impractical for connections under three hours.
How Thai Airport Smoking Works
The 2019 indoor ban prohibits smoking in enclosed public spaces at all civil aviation airports. Outdoor zones are:
- Curbside near terminal entrances at most airports
- Sometimes in car park areas (Don Mueang especially)
- Marked with English/Thai signage
- Free to use
- Subject to tropical weather — heat and humidity in summer, occasional torrential monsoons
There are no exceptions — no indoor smoking rooms anywhere, even in airline lounges.
The Major Hubs
Bangkok Suvarnabhumi (BKK). Thailand’s primary international gateway. Outdoor smoking areas at curbside arrivals and departures levels. Transit passengers cannot access without clearing immigration/security.
Bangkok Don Mueang (DMK). The world’s busiest low-cost carrier hub. Outdoor zones in T1 and T2 car park areas, accessible only by exiting security. Both BKK and DMK feature design choices that favour Thai government tobacco policy enforcement.
Phuket (HKT). Outdoor only. Three terminals — T2 (international, opened 2016), T3 (domestic, 2018), and TX (charter, 2014). Outdoor zones outside each terminal.
Chiang Mai (CNX). Distinctive setup with a standalone outdoor smoking building accessible via Exit 9 from the main terminal. The structure is essentially a covered open-air pavilion. Burning-season air quality (February-April) makes outdoor smoking less pleasant than at coastal airports.
Krabi (KBV). Outdoor only. Gateway to Phi Phi Islands and Ao Nang. Terminal 3 expansion (2.923 billion baht project) underway.
Koh Samui (USM). Uniquely Thai — owned and operated by Bangkok Airways, built in open-air thatched-roof tropical style. The whole airport is essentially semi-outdoor, making smoking accommodation natural. Six gates, all relaxed.
The Vape Warning
This needs to be flagged prominently: vapes and e-cigarettes are illegal in Thailand. The 2014 ban on importation, sale, and possession remains in force in 2026. Tourists caught with vaping devices at Thai airports face confiscation, fines (often around 30,000 THB / ~USD $850), and in serious cases up to 10 years’ imprisonment. Enforcement varies — sometimes officers wave through obvious tourist personal vapes, sometimes they don’t. Do not bring vapes to Thailand under any circumstances. Cigarettes themselves are legal and freely available.
Tips for Smokers at Thai Airports
- All Thai airports are outdoor-only since 2019 — no indoor exceptions
- Bangkok BKK and DMK require exiting security to smoke — plan 60-90 minute round trips
- Chiang Mai’s standalone smoking pavilion is the most distinctive setup
- Vapes and e-cigarettes are ILLEGAL — do not bring them
- Cigarettes are inexpensive (~80-120 THB / ~$2-3/pack)
- Tropical weather: cover available at most outdoor zones, but bring a hat for heat
- For long Asia-Europe transit, consider routing via Singapore (outdoor gardens) or Doha (post-security indoor) instead
Thailand Airports Compared: Indoor, Outdoor & After Security
At a glance — which Thailand airports let you smoke after security, in an indoor room, or in an outdoor area:
| Airport | After security | Indoor room | Outdoor area |
|---|---|---|---|
| Suvarnabhumi Airport (BKK) | Yes | – | Yes |
| Chiang Mai International Airport (CNX) | – | – | Yes |
| Don Mueang Airport (DMK) | – | – | Yes |
| Koh Samui Airport (USM) | Yes | – | Yes |
| Krabi International Airport (KBV) | – | – | Yes |
| Phuket International Airport (HKT) | – | – | Yes |