Airports of Thailand
Airports of Thailand (SET: AOT) is the state-controlled operator of Thailand's six major international airports — Suvarnabhumi (BKK), Don Mueang (DMK), Phuket (HKT), Chiang Mai (CNX), Hat Yai (HDY), and Chiang Rai (CEI). FY2024 passenger traffic was approximately 119 million across the network, with revenue in the THB 66–70 billion range split between aeronautical (landing, parking, passenger service charges) and non-aeronautical (duty-free concessions, retail, office, commercial property). The state holds 70%; the 30% free float trades on SET. AOT is the single cleanest listed exposure to total Thai arrival volume.
Snapshot
Headline numbers a buyer checks first.
FY2024 passenger traffic
~119M
FY2024 (Oct 2023–Sep 2024)
Six-airport network
FY2024 revenue
THB 66–70B
FY2024
Aeronautical, non-aeronautical
Airport count
6
FY2024
BKK, DMK, HKT, CNX, HDY, CEI
State ownership
~70%
FY2024
Listing
SET: AOT
Nov 2004 IPO
What this company actually does
Airports of Thailand operates six international airports under a concession from the Ministry of Transport, with the state retaining ~70% ownership. Suvarnabhumi (BKK) and Don Mueang (DMK), both serving the Bangkok metropolitan region, together carry the majority of both domestic and international traffic. Phuket (HKT) is the third major gateway, driven entirely by leisure arrivals. Chiang Mai (CNX), Hat Yai (HDY), and Chiang Rai (CEI) serve regional and domestic traffic with smaller international exposure.[]
Revenue splits between aeronautical (landing fees, parking, passenger service charges — volume-driven) and non-aeronautical (duty-free concessions, retail, property, office — spend-per-head-driven). The King Power duty-free concession is the single largest non-aeronautical revenue contributor; renewal and terms remain an ongoing disclosure item.[]
Business segments
Revenue driver 1
Aeronautical
Landing fees, aircraft parking, passenger service charges. Volume-driven — scales directly with passenger throughput. FY2024 total network ~119M passengers across 6 airports. Structurally linked to TAT arrivals targets.
Revenue driver 2
Non-aeronautical
Duty-free concessions, retail, office, commercial property, food and beverage. Spend-per-head-driven. King Power duty-free concession at Suvarnabhumi and Don Mueang is the single largest contributor.
Flagship gateways
Suvarnabhumi and Don Mueang
BKK and DMK together carry the majority of international and domestic traffic. Suvarnabhumi serves full-service carriers; Don Mueang is the LCC hub. Combined capacity constraints are the binding 2027-2030 investment story.
Regional airports
Phuket, Chiang Mai, Hat Yai, Chiang Rai
HKT is leisure-driven; CNX serves northern Thailand and CLMV trade; HDY and CEI handle regional flows. International exposure is proportionally smaller but growing as intra-ASEAN travel recovers.
AOT airport network — passenger traffic overview
Suvarnabhumi
IATA
BKK
Role
Primary international
Est. FY2024 pax
~60M
Key carrier / concession
Full-service; King Power duty-free
Don Mueang
IATA
DMK
Role
LCC hub
Est. FY2024 pax
~40M
Key carrier / concession
AirAsia Thailand primary base
Phuket
IATA
HKT
Role
Leisure international
Est. FY2024 pax
~10M
Key carrier / concession
European, Chinese leisure arrivals
Chiang Mai
IATA
CNX
Role
Regional, CLMV
Est. FY2024 pax
~5M
Key carrier / concession
Chinese, CLMV trade corridor
Hat Yai, Chiang Rai
IATA
HDY/CEI
Role
Regional domestic
Est. FY2024 pax
~4M
Key carrier / concession
Southern Thailand, border trade
| Airport | IATA | Role | Est. FY2024 pax | Key carrier / concession |
|---|---|---|---|---|
| Suvarnabhumi | BKK | Primary international | ~60M | Full-service; King Power duty-free |
| Don Mueang | DMK | LCC hub | ~40M | AirAsia Thailand primary base |
| Phuket | HKT | Leisure international | ~10M | European, Chinese leisure arrivals |
| Chiang Mai | CNX | Regional, CLMV | ~5M | Chinese, CLMV trade corridor |
| Hat Yai, Chiang Rai | HDY/CEI | Regional domestic | ~4M | Southern Thailand, border trade |
Watchpoints for the next annual report
Passenger growth vs capacity
If FY2025 passenger total breaks 125M, Suvarnabhumi capacity constraints become the binding investment story. Watch for any capex acceleration or new-airport announcements.
King Power concession terms
The duty-free concession is the single largest non-aeronautical contributor. Any modification to minimum guarantees or revenue-share terms moves the EBITDA forecast materially.
State dividend policy
With ~70% state ownership, dividend payout is partly a political variable. Track payout ratio vs capex requirements.
Regional airport expansion
A long-discussed Bangkok third airport at U-Tapao or Lam Luk Ka would shift the gateway network. Watch for any update on the Eastern Economic Corridor aviation cluster.
Concession economics and non-aeronautical revenue
Non-aeronautical revenue — duty-free, retail concessions, commercial property — is the higher-margin and less volume-sensitive half of AOT's P&L. The King Power duty-free concession, which covers the Suvarnabhumi and Don Mueang terminals, is the single largest contributor. Concession terms, minimum guarantees, and renewal status are the variables to track in the 56-1. A step-down in duty-free economics would be the single largest unfavourable read for AOT's EBITDA ratio.[]
Aeronautical revenue scales with passenger volume and aircraft movements. TAT's 2025 target of 39M international arrivals (plus domestic traffic) pushes AOT's FY2025 passenger total toward 125–130M, which tightens runway and terminal capacity at Suvarnabhumi. The satellite terminal operational expansion and the airside bus apron optimisation are the two main capacity investments disclosed in the 56-1.[, ]
Risk watch
State ownership, concession renewal are the binding variables
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Sources + data provenance
Every filing, filing-adjacent register, or trusted industry source cited in this profile.
Airports of Thailand PCL (SET: AOT) FY2024 Form 56-1 One Report
TAT / MOTS — 2025 Tourism Actuals and Original Target Context
| Source | Publisher | Grade | As of |
|---|---|---|---|
| Airports of Thailand PCL (SET: AOT) FY2024 Form 56-1 One Report | Airports of Thailand PCL | Primary | 2025-01-31 |
| TAT / MOTS — 2025 Tourism Actuals and Original Target Context | Tourism Authority of Thailand | Primary | 2026-01-08 |
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