What airline has hubs in both Noi Bai International Airport and Tan Son Nhat International Airport?
Noi Bai International Airport:  The airport is currently the main hub of the country's flag carrier Vietnam Airlines, as well as a major hub of low-cost carriers Vietjet Air and Jetstar Pacific. Jetstar Pacific:  With its hub at Tan Son Nhat International Airport, Ho Chi Minh City, operates scheduled domestic and international services along with charter flights.
Jetstar Pacific