The main international airport in Bangkok is Suvarnabhumi Airport, there used to be a direct bus straight from the airport to Khosan, but it stopped running recently. So here are your other options…

Taxi – Get a metered taxi, using the expressway (you have to have change ready to pay the toll) the total fare including the toll will probably be around 300THB (£6/$10 ish). If your arriving after midnight allow around 500THB (£10/$15 ish).

Airport Rail link – This is the fastest and cheapest way to get to Khosan, but a lot of people opt for the hassle free taxi, if your traveling during rush hour though the rail link and be a great time saver. Follow signs to the Rail link from the arrivals section, its easy to find. Buy a ticket to Phaya Thai it costs around 90THB, and the train takes around 15 mins. From Phaya Thai just jump in a taxi to Khosan, this is the quickest way as you bypass all the traffic until you get right to the end of the journey.