Which South East Asian Country Has The Most Airline Capacity (Domestic + International)?

Southeast Asia has a growing aviation market. However, none of the airports in this region make it to the list of the busiest airport in Asia Pacific, nor do the routes served here make the cut of the busiest airline routes. Nevertheless, let’s take a look at the ten Southeast antions with the highest airline capacity (domestic + international) in the world.

[ Note: The rankings were based on the data from OAG, a global air traffic data provider. The data was available when the writer last checked the website on 15th February.]

10.Brunei Darussalam

*The flag of Brunei Darussalam*
*Photo: Aerra Carnicom | Wikimedia Commons*

Seats in 2024 February	Seats in2025 February	Change
71294	74778	4.9%

*Royal Brunei Airlines Airbus A320-200*
*Photo: Montague Smith| Wikimedia Commons*

Airline	Current fleet
Royal Brunei Airlines	12
The Sultan’s Flight	N/A

*Brunei International Airport*
*Photo: Adznee Abas| Wikimedia Commons*

Airports	Runway length
Brunei International Airport	3,685 m × 46 m (12,090 ft × 151 ft)
Anduki Airfield	820 m × 32 m (2,690 ft × 105 ft)

9,Lao People’s Democratic Republic

*The flag of the Lao People’s Democratic Republic*
*Photo: Aerra Carnicom | Wikimedia Commons*

Seats in 2024 February	Seats in2025 February	Change
196343	241679	25.4%

*Lao Airlines Aircraft*
*Photo:Francisco Anzola | Wikimedia Commons*

Airline	Current fleet
Lao Airlines	11 (Aircraft type ATR 42/72 and Airbus A320)
Lao Skyway	1(Aircraft type De Havilland Canada DHC-6 Twin Otter)
Lanexang Airways International	2(Aircraft type)

*Bokeo International Airport at constuction time*
*Photo: SaiLp | Wikimedia Commons*

Airports	Runway length
Attapeu International Airport	1,850m(6,070ft)
Bokeo International Airport	2,700m(8,858ft)
Luang Prabang International Airport	2,500m(7218ft)
Sayaboury Airport	992m(3,254ft)

8,Myanmar

*Flag of Mayanmar*
*Photo: Perhelion | Wikimedia Commons*

Seats in 2024 February	Seats in2025 February	Change
297036	293043	-1.2%

*Myanmar Airways EmbraerERJ-190LR*
*Photo: Md Shaifuzzaman Ayon | Wikimedia Commons*

Airline	Current fleet
Mingalar Aviation Services	3(Aircraft type ATR 42/72 )
Mann Yadanarpon Airlines	3(Aircraft type ATR 42/72 )
Myanmar International Airlines	9(Aircraft type ATR 42/72,Airbus A319 and Airbus A320)
Air Thanlwin	4(Aircraft type ATR 42/72)

*Yangon International Airport*
*Photo: M Radzi Desa| Wikimedia*

Airports	Runway length
Yangon International Airport	3,414m(11,201ft)
Nay Pyi Taw International Airport	3,657m(12,000ft)
Anisakan Airport	3,054m(10,020ft)
Ann Airport	2,591m(8,500ft)

7,Cambodia

*Cambodia flag*
*Photo: ទេព_សុវិចិត្រ | Wikimedia Commons*

Seats in 2024 February	Seats in2025 February	Change
359965	447479	24.3%

*Cambodia Angkor Air*
*Photo: Windmemories | Wikimedia Commons*

Airline	Current fleet
AirAsia Cambodia	2(Aircraft type Airbus A320)
Cambodia Airways	5(Aircraft type Airbus A320-200 and Airbus A319)
Air Cambodia	5(Aircraft type ATR 42/72,Airbus A320-200 and Airbus A321-200)
Sky Angkor Airlines	6(Aircraft type Airbus A320-200 and Airbus A321-200)

*Pochentong International Airport*
*Photo: M Radzi Desa | Wikimedia Commons*

Airports	Runway length
Phnom Penh International Airport	3,000m(10,000ft)
Siem Reap–Angkor International Airport	3,605m(11,827ft)
Sihanouk International Airport	3,300m(10,827ft)

6,Singapore

*Singapore Flag 6th at the South East Asian Country Most Airline Capacity*
*Photo: Aerra Carnicom | Wikimedia Commons*

Seats in 2024 February	Seats in2025 February	Change
3270566	3324655	1.7%

Airline	Current fleet
Jetstar Asia Airways	13(Aircraft type Airbus A320-200)
Scoot	55(Aircraft type Airbus A320,Airbus A321neo and Boeing 787 Dreamliner)
Singapore Airlines	158(Aircraft type Airbus A350 XWB, Airbus A380,Boeing 737 and Boeing 787 Dreamliner)

*Inside Jewel Changi Airport in Singapore.*
*Photo: Mike Peel | Wikimedia Commons*

Airports	Runway length
Singapore Changi Airport	4,000m(13123ft)
Seletar Airport	1,836m(6023ft)
Pulau Sudong Airport	2,438m(7998ft)

5,Philippines

*Flags of the Philippinesno 5 at the South East Asian Country Most Airline Capacity*
*Photo: FBenjr123 | Wikimedia Commons*

Seats in 2024 February	Seats in2025 February	Change
4279958	4766887	11.4%

*Philippines Airlines AirbusA350*
*Photo: Aaron Davis | Wikimedia Commons*

Airline	Current fleet
Cebu Pacific	93(Aircraft type ATR 42/72, Airbus A320,Airbus A321 and Airbus A330)
Philippine Airlines	173(Aircraft type Airbus A320,Airbus A321,Airbus A330,Airbus A350 XWB, Boeing 777 and De Havilland Canada DHC-8 Dash 8)
SkyJet Airlines	4(Aircraft typeBritish Aerospace BAe 146/Avro RJ)
Sunlight Air	3(Aircraft type ATR 42/72)

*Inside the departure hall, Puerto Princesa International Airport*
*Photo: Luisztdt | Wikimedia Commons*

Airports	Runway length
Clark International Airport	3,200 m (10,500 ft)
Kalibo International Airport	2,500 m (8,200 ft)
Ninoy Aquino International Airport	3,737 m (12,260 ft)
Puerto Princesa International Airport	2,600 m (8,500 ft)

4, Malaysia

*Flag of Malaysia no 4 at the South East Asian Country Most Airline Capacity*
*Photo: MapGrid | Wikimedia Commons*

Seats in 2024 February	Seats in2025 February	Change
4874683	5218607	7.1

*Malaysia Airlines Airbus_A380*
*Photo: Mhashan | Wikimedia Commons*

Airline	Current fleet
Malaysia Airlines	84(Aircraft type Airbus A330,Airbus A350 XWB and Boeing 737)
Batik Air Malaysia	39(Aircraft type Airbus A330 and Boeing 737)
AirAsia	108(Aircraft type Airbus A320 and Airbus A321)
MASwisngs	15(Aircraft type ATR 42/72 and De Havilland Canada DHC-6 Twin Otter)

*Kuala Lumpur International interior*
*Photo: Dmitry Avdeev | Wikimedia Commons*

Airports	Runway length
Kuching International Airport	3,780m(12,402ft)
Kuala Lumpur International Airport	4,019m(13,186ft)
Pangkor Airport	792(2,598ft)
Mersing Airport	500(1649ft)

3. Vietnam

*Flag of Vietnam no 3 at the South East Asian Country Most Airline Capacity*
*Photo: Nguyễn Anh Thoan | Wikimedia Commons*

Seats in 2024 February	Seats in2025 February	Change
5724014	5980253	4.5%

*Vietnam Airlines*
*Photo: Grahame Hutchison | Wikimedia Commons*

Airline	Current fleet
Bamboo Airways	7 (Aircraft type Airbus A320 and Airbus A321)
VietJet Air	94 (Aircraft type Airbus A320,Airbus A321 and Airbus A330)
Pacific Airlines	3 (Aircraft type Airbus A321)
Vietnam Airlines	96(Aircraft type Airbus A320, Airbus A321,Airbus A350 XWB, Boeing 787 Dreamliner and Fokker 70 / 100)

*Dong Hoi Airport*
*Photo: Kiepngheoxurose | Wikimedia Commons*

Airports	Runway length
Can Tho International Airport	3,000m(9843ft)
Van Don International Airport	3,600m(11811ft)
Dong Hoi Airport	2,400(7874ft)
Tho Xuan Airport	3,200(10,498ft)

2. Thailand

*Flag of Thailand no 2 at South East Asian Country Most Airline Capacity*
*Photo: Zscout370 | Wikimedia Commons*

Seats in 2024 February	Seats in2025 February	Change
6769860	7431108	9.8%

*Thai AirAsia AirbusA320*
*Photo: Peter Bakema| Wikimedia Commons*

Airline	Current fleet
Bangkok Airways	23(Aircraft type ATR 42/72, Airbus A319 and Airbus A320)
Nok Air	14(Aircraft type Boeing 737)
Thai AirAsia	60(Aircraft type Airbus A320 and Airbus A321)
Thai Lion Air	27(Aircraft type Boeing 737)

*Bangkok International Don Muang*
*Photo: Andre Wadman | Wikimedia Commons*

Airports	Runway length
Don Mueang International Airport	3,700m(12139ft)
Hat Yai International Airport	3,150m(10,007ft)
Betong Airport	1,800m(5,906ft)
Lampang Airport	1,971m(6465ft)

1. Indonesia

*Flag of Indonesia. south east asia no 1 South East Asian Country Most Airline Capacity*
*Photo: Achim55 | Wikimedia Commons*

Seats in 2024 February	Seats in2025 February	Change
9844673	9401267	-4.5

*Indonesia AirAsia Airbus A320*
*Photo: Jakkrit Prasertwit | Wikimedia Commons*

Airline	Current fleet
Pacific Royale Airways	N\A
Garuda Indonesia	72(Aircraft type Airbus A330, Boeing 737 and Boeing 777)
Indonesia Air Transport	3(Aircraft type ATR 42/72 and Embraer ERJ-145)
Indonesia AirAsia	30(Aircraft type Airbus A320)

*Terminal Building of Harun Thohir Airport.*
*Photo: Directorate General of Civil Aviation of Indonesian Ministry of Transport | Wikimedia Commons*

Airports	Runway length
Harun Thohir Airport	1,000m(3,281ft)
Kertajati International Airport	3,000(9843ft)
Harun Thohir Airport	1,000m(3281ft)
Ngloram Airport	1,500m(4921ft)