The best month to fly between Sydney and Singapore is November and the most expensive month to fly is December. (Average prices, based on 1069 datapoints.)
The best day to arrive at Sydney is Tuesday and it would be best to avoid Wednesday, as prices are on average 309.07% higher than on Tuesday. (Average prices, based on 317684 datapoints.)
The cheapest airline flying from Sydney to Singapore is Scoot-Tiger. They are 55% cheaper than Qantas. (Average prices, based on 1077 datapoints.)
The best time to fly is at around 20. (Average prices, based on 1887 datapoints.)