For flights between Singapore and Bangkok, Singapore Airlines operates the following airport routes:
For flights between Singapore and Bangkok, Singapore Airlines operates from the following airport routes: Singapore Changi Airport (SIN) to Suvarnabhumi Airport (BKK)
One of Singapore Airlines cheapest prices for a Singapore to Bangkok flight we have right now is 153$.
The price for a Singapore Airlines flight between Singapore to Bangkok will vary according to some factors, like seasonality and anticipation.