	const decolar = require("decolarjs");
	let  origin = "MIA"  // IATA AIRPORT CODE
	let  destination = "LAX"  // IATA AIRPORT CODE
	let  date = "2020-03-10"  // YYYY-MM-DD
	let  options = {
					minResults:  5,
					currency:  "USD"  // Supported Currencies -> BRL ARS USD CLP COP CRC
					} // Optional
	decolar.fligths.oneWay(origin,destination,date,options).then(console.log);

JSON response example HERE