By taxi : We recommend that you take the airport taxi for your own safety. In front of the airport (on the same floor as the baggage claim), there will be a taxi counter servicing customers 24 hours. Its service charge is 50 Baht per taxi. The meter should be up to 300-400 Baht and it should take you approximately 1 hour to get to Khaosan Road..
From Don Muang Airport (only for domestic low-cost airlines):
By taxi : It will take you approximately 45 minutes to get to Khaosan Road. T The meter should be up to 250-300 Baht .
Once you arrive to Khaosan Road, you can't miss a big hotel sign on the right hand side if coming in from the Police Station end. But if the taxi drops you off by the opposite end (Burger King), you have to walk for a few minutes to be able to see the hotel sign as it is covered by other signs.