SOUTHEAST ASIA AVIATION MARKET DATA

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

In March 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 capacity in Southeast Asia grew by 10.7% compared to March 25 to 54.4 million seats.
  
• Year-on-year, international capacity has increased by 9.1%, whilst domestic capacity has increased by 12.7%.
• International capacity accounts for 56% share of the market, and domestic capacity represents the remaining 44% market share.

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

• Indonesia remains Southeast Asia's largest market with 10.6m seats, with capacity increasing this month by 10.4% compared to March 2025.
• Thailand is the next largest market in Southeast Asia with 8.5m seats, an 8.3% increase in capacity vs last year.
• Capacity in Malaysia is growing at the fastest rate of 21.8% - 1.1m additional seats compared with last year.
  
• Capacity in Myanmar continues to fall, down 17.1% compared with March 2025, a reduction of 59,000 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 the largest domestic market in Southeast Asia with 8.5m seats, an increase of 11.1% in capacity compared to March 2025.
  
• Domestic capacity increased at the fastest rate in Malaysia by 28.4% year-on-year, which is 647k additional seats.
• Domestic capacity in Myanmar has reduced by 41.6%, 88k fewer seats.

Which is the Busiest Airport in SouthEast Asia?

• Singapore Changi remains the largest airport in the region, with 3.7m seats. This represents a 4.6% increase in capacity compared to March 2025.
• Kuala Lumpur and Bangkok are the second and third busiest airports, both with capacity of 3.6m seats.
  
• Of those in the Top 10, Kuala Lumpur and Hanoi grew at the fastest rate, up 22% and 17.1% respectively vs last year. 
  
  
• READY TO VIEW: The World's Busiest Airports of 2025