SDQ
Las Americas International Airport
Quick answer
28% of air arrivals, about 2.5 million passengers a year. From the airport to central Santo Domingo: Uber about $12-18 or official taxi $35-40. About 25-35 minutes depending on traffic.
The airport trick
No intercity bus departs directly from the air terminals. The right pattern is: short ride from the airport to the bus stop, then the intercity guagua. Guagualine solves both pieces in a single booking.