Find a good deal on your flight from Singapore to Kuching with Netflights. If you want to keep your options open, take a look at flights from another airport in Singapore.
Both flight prices and accommodation rates fluctuate throughout the year, but searching by month will reveal the cheapest times to fly.
Or you could broaden your search by looking at flights to other airports in Malaysia to see if there are any cheaper options.
Did you know you can also compare hotel and car hire prices in Malaysia with Netflights? Take a look to get an idea of prices in Kuching.