The sector is forecast to reach $9.5 trillion in 2023, just 5% shy of its gross domestic product contribution in 2019.
The scale of the three-runway system (3RS) project is almost equal to building a new airport next to the existing one.
This past weekend, an Air China flight between Beijing and New York marked the first direct passenger on the route by a Chinese carrier in months.
DBS expects a further recovery in aircraft demand in the near term.
The airline expressed its commitment to enhancing the management of its service agents.
The C919 flight will take off as flight number MU9191 at 10:45 a.m.
Fitch Ratings expects growth momentum will spill over in the medium term yet the full recovery will take time, with traffic coming back to 2019 levels only by end-2024.
Xiamen Airlines will operate six round-trip flights per week.