How to Take the Airport Rail Link Train (ARL) from Downtown Bangkok to Suvarnabhumi Airport. The Train is one of the easiest ways to travel from Central Bangkok to Bangkok’s Main Suvarnabhumi International Airport. This Video shows how to take the Subway to Makkasan Station and there take the train directly to the airport. The train only takes 22 Minutes. The cost for a ticket is just 35 THB per person.