Question : Is Ronald Reagan National Airport (DCA) the cheapest airport for getting to Shenzhen Bao'an International Airport (SZX)?
Answer : Departing from Ronald Reagan National Airport is not the only way to get to Shenzhen Bao'an International Airport. Try searching for flights from Washington Dulles International Airport (IAD) as well. Over the next few months, flights from IAD to SZX are being booked 13% cheaper than flights from DCA to SZX. Being only 23 miles away, it's easily accessible for most.