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Aviation & AirportsBronze report
Published April 2026Insight Research8 min read2026 Edition9 sources, 7 primary-gradeStandard source depth

Suvarnabhumi, Don Mueang, and Airports of Thailand: AOT and the Air-Travel Backbone

Airports of Thailand (AOT SET-listed) operates 6 international airports β€” Suvarnabhumi (BKK ~65M passengers FY2024), Don Mueang (DMK ~30M low-cost), Chiang Mai (CNX), Phuket (HKT), Hat Yai (HDY), Mae Fah Luang Chiang Rai (CEI). ~120-130M annual passengers combined. Suvarnabhumi Phase 2 expansion, new midfield terminal underway. Watchpoints: US 19% tariff impact on tourism, Chinese visitor recovery, Don Mueang Phase 4.

Key takeaways

  1. 1

    Airports of Thailand (AOT SET-listed) operates 6 tier-1 international airports.

  2. 2

    Suvarnabhumi (BKK) ~ passengers FY2024; world's top-25 international.

  3. 3

    Don Mueang (DMK) ~ passengers FY2024; world's largest low-cost airport.

  4. 4

    Combined ~120- annual passengers.

  5. 5

    Suvarnabhumi Phase 2 SAT-1, Runway 3 operational 2023-2024.

  6. 6

    Watchpoints: US tariff tourism impact, Chinese visitor recovery, Don Mueang Phase 4.

Questions this report answers

How big is AOT? Per AOT SET disclosures: Airports of Thailand (AOT SET-listed AOT, MoT-affiliated SOE structure) operates 6 tier-1 international airports: Suvarnabhumi (BKK Bangkok, ~ passengers FY2024, world's top-25 international airport), Don Mueang (DMK ~, world's largest low-cost airport), Chiang Mai (CNX ~10-), Phuket (HKT ~14-), Hat Yai (HDY ~3-), Mae Fah Luang Chiang Rai (CEI ~2-). Combined ~120- annual passengers FY2024.[, ]

What about non-AOT airports? Per Bangkok Airways and CAAT: Krabi (KBV), Koh Samui (USM Bangkok Airways-operated), Trat (TDX Bangkok Airways-operated), Sukhothai (THS Bangkok Airways-operated). CAAT oversees safety, licensing. King Power holds Suvarnabhumi, Don Mueang duty-free concession monopoly.[]

What's the expansion, watchpoint structure? Per Bangkok Post / AOT: Suvarnabhumi Phase 2 SAT-1 satellite terminal operational 2023; Suvarnabhumi Runway 3 operational 2024; Don Mueang Phase 4 expansion 2024-2028. Watchpoints: US tariff tourism impact (post-2025 Trump tariff), Chinese visitor recovery (post-COVID slow), Don Mueang Phase 4 completion, AOT concession-renewal cadence (King Power duty-free monopoly), low-cost-airline expansion.[]

Public-record references
Data as of: 2025-2030 horizon

Executive summary

AOT SET-listed operates 6 tier-1 international airports. ~120- combined passengers FY2024.[, ]

Suvarnabhumi BKK ~; Don Mueang DMK ~ (world's largest low-cost). Suvarnabhumi Phase 2 SAT-1, Runway 3 operational 2023-2024.[]

Watchpoints: US tariff tourism impact, Chinese visitor recovery, Don Mueang Phase 4 completion, King Power duty-free monopoly concession.[]

Public-record references
Data as of: 2025-2030 horizon

Airports of Thailand structure

Combined passengers

Value

~120-130M

Notes

FY2024.

Suvarnabhumi BKK

Value

~65M passengers

Notes

World's top-25 international.

Don Mueang DMK

Value

~30M passengers

Notes

World's largest low-cost airport.

Phuket HKT

Value

~14-16M

Notes

Andaman tier-1.

Chiang Mai CNX

Value

~10-12M

Notes

Northern tier-1.

AOT-listed

Value

SET-listed AOT

Notes

MoT-affiliated SOE.

Public-record references
Data as of: 2024-2026

Analyst framing

Why this report matters

AOT operates 6 tier-1 international airports. ~120-130M combined passengers FY2024. Suvarnabhumi BKK ~65M; Don Mueang DMK ~30M. Suvarnabhumi Phase 2 SAT-1, Runway 3 operational 2023-2024. Don Mueang Phase 4 underway 2024-2028.

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Suvarnabhumi, Don Mueang, and Airports of Thailand: AOT and the Air-Travel Backbone Β· Insight