SOUTHEAST ASIA AVIATION MARKET DATA

How much airline capacity is there in Southeast Asia? Find out with new data each month.

In January 2026 the top stats from the Southeast Asian aviation market are:

• Busiest Airport: Singapore Changi (SIN)
• Biggest Airline: AirAsia
• Country with Most Airline Capacity: Indonesia
• Top Destination Region: Asia Pacific
• And discover more...

Find below flight data and analysis focused on the Southeast Asia aviation market, with data powered by OAG's Schedules Analyser. The data is updated monthly. Seats are calculated as departing seats (one-way).

How Much Airline Capacity is There in SouthEast Asia This Month?

• Overall airline capacity in Southeast Asia is 56 million in January 2026, a 4.4% increase compared to the same month last year.
• International capacity has increased by 4.5%, whilst domestic capacity has increased by 4.2%.
• International capacity represents 57% share of the market, and domestic capacity the remaining 43% market share.
  

Which sOUTHeAST aSIAN Country Has The Most Airline Capacity (Domestic + International)?

• Indonesia remains the largest country market in Southeast Asia in January 2026, with 11 million seats. Capacity has grown slightly this month, up 0.6% compared to January 2025. Thailand is the second-largest market with 8.7m seats, a 4.3% increase in capacity vs last year.
• The markets showing the largest growth in seats this month are Viet Nam and the Philippines, adding 627,000 and 588,000 seats respectively compared with January 2025.
• In contrast, Myanmar’s capacity has fallen by 19.6% year-on-year with a reduction of 65,000 seats.
  
  
• For more insight into airline capacity, get in touch regarding our flight seat data here.

Which sOUTHeAST aSIAN Country Has The Most Domestic Airline Capacity?

• Indonesia is Southeast Asia’s largest domestic market in January 2026 with 8.7 million seats, despite a marginal 0.1% decrease in capacity (5,000 fewer seats) compared to January 2025.
• Domestic capacity increased most by volume in Thailand and the Philippines, adding 460,000 and 405,000 seats respectively compared to January 2025.
• Domestic capacity in Myanmar has reduced further by 42.3% year-on-year, with 84k fewer seats.
  

Which is the Busiest Airport in SouthEast Asia?

• Singapore Changi remains the largest airport in Southeast Asia in January 2026, with 3.7m seats. This represents a 0.7% reduction in capacity compared to last year.
• Bangkok and Kuala Lumpur follow as the second and third busiest airports, with 3.63m and 3.62m seats respectively.
• Of those in the Top 10, Hanoi grew at the fastest rate, up 22.2% vs last year.
• Phuket saw the largest decline in airline capacity of those in the Top 10, down 2.6% compared to January 2025.
  

Where do International Flights From SOUTHEAST Asia Go?

• Capacity to the rest of Asia Pacific remains the largest international market, with 19.1m seats, up 3.9% year-on-year (an additional 725k seats).
• International capacity within Southeast Asia is the next largest market, with 7.3m seats, up 3.8% year-on-year (an additional 271k seats compared to January 2025).
• Capacity to Europe and North America continues to grow at the fastest rates this month, increasing by 14.6% and 13.4% respectively.
  
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