The best day to arrive at Singapore is Tuesday and it would be best to avoid Wednesday, as prices are on average 130.45% higher than on Tuesday. (Average prices, based on 354307 datapoints.)
Mon
Monday€ 504
Tue
Tuesday€ 221
Wed
Wednesday€ 508
Thu
Thursday€ 309
Fri
Friday€ 483
Sat
Saturday€ 484
Sun
Sunday€ 276
Analyse direct flights between Singapore and Perth.