SOUTHEAST ASIA AVIATION MARKET DATA

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

In October 2025 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 the SE Asia market  grew by 4.8% this month compared to Oct 24 to 50.5 million seats.
• International capacity increased by 5.6%, whilst domestic capacity has grown at a slightly slower rate of 3.8%.
• International  capacity represents 56% share of the market, and domestic capacity represent the remaining 44% market share .

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

• Indonesia remains the largest SE Asia country market with 10.6m seats, despite capacity reducing again this month by 4.4% compared to Oct. 24.
• Thailand is the next largest country market in SE Asia, with 7.6m seats, a 5.9% increase in capacity vs last year.
• The countries showing the largest growth in seats are Vietnam and Malaysia again this month, with growth of 815k and 814k additional seats respectively compared with last year.
• Capacity in Laos is growing at the fastest rate this month, up 19.1% vs Oct 24 followed by Cambodia which is up 17.6%.
  
• 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 SE Asia, with 8.5m seats, despite a 6.3% reduction in capacity - 573k fewer seats.
• Malaysia increased domestic capacity most by volume, with growth of 602k seats vs last year, followed by Vietnam with 499k and Thailand with 390k additional seats compared to Oct 24.
• Domestic capacity in Myanmar has reduced further by 38.2% to 117k seats.
  

Which is the Busiest Airport in SouthEast Asia?

• Singapore Changi remains the largest airport in the region, with 3.6m seats.  This represents a 0.7% increase in capacity compared to last year.
• Kuala Lumpur is the second busiest airport, with capacity of 3.4m, an increase of 15.5% vs last year.
• Within the Top 10 airports in the region, Kuala Lumpur and Hanoi grew at the fastest rate, up 15.5% and 15% respectively vs last year. 
• Within the Top 10, Makassar continued to the highest capacity reductions, declining by 11.8% vs Oct 24.
  

Where do International Flights From SOUTHEAST Asia Go?

• SE Asia capacity to the rest of Asia Pacific remains the largest international market with 17.1m seats and increased by 6.2% (998k more seats) vs last year.
• International capacity within SE Asia, the next largest market with 6.7m seats, grew at a faster rate of 4.4% (283k more seats) vs Oct 24.
• Capacity to North America and Europe are growing at the fastest rates this month increasing by 10.9% and 11.8% respectively.
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