U Tapao Airport [Rayong] has a web site with flights and schedules.
Transfer from Don Muang Airport
Taxis and limousine service from Bangkok's Don Muang is readily available.
Regular Taxi - Expect to pay up to Bt 1,100 Limousine - Thai Airways charges Bt 1,500 while Image Limousines offers some additional amenities at Bt 2,300, A bus from the airport should cost Bt 200.
Minibuses going direct to Pattaya from Don Muang Airport depart at 09:00 am, 12:00 Noon and 7:00 pm daily. Thai Airways International. Tel. 0 2535 2801 or 0 2535 2803.
Air Con Bus Service from Bangkok
buses are scheduled to depart the Eastern (Eckamai) bus station every 30-40 minutes (depending on the information source)from 5:00 am - 11:00 pm. That ususally means if they have enough passengers. The trip schedule is 2.2 hours and the cost is Bt 90
Train
The State Railway of Thailand has daily rail service departing Bangkok's Hua Lamphong Station at 6:55 am - Tel 0 2223 7010 or 0 2223 7020. The trip lasts about 3.30 hours.
Car - Pattaya is about 140 km southeast of Bangkok via the Bangna-Trat road and the Chon Buri Motorway. Driving time will vary from 2 hours up, depending on traffic.
Getting Around Pattaya
Songtaews , commonly called "Baht buses", are pickup trucks equipped with canopies and two seats running the length of the bed. Fares vary with the zone, Basic fare around beach road is Bt 5. Bt 10 to Naklua and Bt 30 to Jomtien.
If you ask the driver to take you directly to a destination, the songtaew becomes a taxi and the fare is subject to negotiation. Always negotiate before boarding as unnegotiated fares can be quite creative.
Motorcycle taxis are another form of direct transport. To avoid problems, Negotiate the fare in advance, from about Bt 20 and upwards.