Fly from Suvarnabhumi Airport (BKK) in Bangkok to Changi Airport (SIN) in Singapore. The flight takes about 2 hours. Book with Singapore Airlines or Thai Airways for comfort and direct service.
Check into a comfortable hotel like Orchard Hotel Singapore or Hotel Jen Orchardgateway, both centrally located for shopping and easy transport access.
Visit the National Gallery, Victoria Theatre, and Asian Civilisations Museum to immerse in Singaporean history and art. Most museums open from 10am to 7pm.