How much does a meal cost in Thailand? The average price of a basic Thai meal in a restaurant is 90-150 baht. Seafood always costs more. A plate of noodles at a basic restaurant in Sukhumvit costs about 100 baht. Thai portions are often smaller, so you may end up eating an extra meal or snacking throughout the day! Is $100 a lot in Thailand? The good news is that $100 USD is a...