Boeing isn't slowing down anytime soon, especially not in Asia. In the next 20 years, Boeing and others expect to supply Southeast Asia with 3,750 new aircrafts worth an astounding $550 billion, Reuters reports.

The news come as Singapore gets ready for its upcoming Singapore Airshow which begins Tuesday.

Of these 3,750 airplanes, 76 percent will be made up of single-aisle vessels like the Boeing 737 and Airbus A320.

Instead of making larger orders, these countries are making smaller orders, according to CNBC.

"People have figured out, at least in our case, if you want big orders, you'll have to pay deposits on those orders. Why would you put a deposit on an airplane that is delivering in 2030?" said Boeing Senior Vice President of Asia Pacific Dinesh Keskar.

The customers are making it apparent, however, that they are in it for the long haul. And Boeing is ready to deliver.

Will Horton, an analyst at CAPA, is also certain that aircrafts will continue to increase in demand over the next few decades.

"China's aviation outlook is not just bright, but arguably the strongest it has been in its history. Chinese airlines are waking up to their potential," he said, according to Bloomberg.

China is also looking to build more airports, hoping to have 272 within the country by 2020.