The bus is the cheapest form of transportation to reach Pattaya from Bangkok. The buses are air conditioned and are very comfortable. You can get the bus from level 1 gate 8 at arrival hall.
There are two service providers 389 and Bell Travel.
Bell travel first bus goes at eight in the morning. Bell Travel tickets can only be booked from there website. There are no counter sale of tickets.
You can take a shared Tuk-Tuk or ride a bike if you have less luggage to reach your hotel. Shared Tuk-Tuk can cost you between 40-60 THB. Cost will vary more depending on the location of your hotel in Pattaya.
21:00 and 22:00 bus will go to North Pattaya bus station only
There are no buses from Don Mueang Airport as we have from Suvarnabhumi airport. You have to go to the nearby bus stop. There are two bus stations that you can choose – Eastern Bus Station (Ekkamai) and the Northern Bus Station (Mo Chit). I took Mo Chit bus station as it was less tricky. I took a cab for 150 THB from the airport to reach Mo Chit. Then I took a bus from there to Pattaya for 108 THB. The first bus service starts at 4:30 AM; it would be beneficial if you have reached early in the morning. It takes One and half hours to two hours to reach Pattaya from here.
Note - A metered taxi from the airport to Pattaya has an official price of 1,050 baht, plus 60 baht for expressway charges.