List all commercial airlines with international destinations which are based in any countries of South East Asia. Seasonal/Charter or Terminated destinations are not included. ICAO and IATA codes are allowed.
Have used many of these before. What about Cathay Pacific? They're one of the best IMO, and though China's not really SE Asia I would say that Hong Kong and Macau are. Also Nok Air in Thailand. And isn't JetStar an Australian airline? I think they may have a hub in Singapore (I once got a cheap flight from Hong Kong to Singapore through them) but I don't think that's where the company (or its parent company) is headquartered. I could be wrong. I forgot Vietjet and I just used them a couple months ago...
Now that I see your caveat at the top I guess NokAir is not included because it is considered a domestic airline? But then I looked it up and they actually do have flights to Myanmar and Laos.
NokAir yes. Cathay Pacific and Air Macau no. bcuz they're based in HK and Macau respectively and both are not part of SE Asia. And Jetstar is an australian airline. But they've made a "subsidary" Jetstar Asia which operates from Singapore.
Now that I see your caveat at the top I guess NokAir is not included because it is considered a domestic airline? But then I looked it up and they actually do have flights to Myanmar and Laos.