Originally Posted by flyCX77W

Flight Departure Arrival Stops Duration Aircraft Remarks Select your flight
Economy
CX710 SIN 08:30 HKG 12:15 0 3:45 773 E
CX736 SIN 10:10 HKG 14:05 0 3:55 330 E
CX714 SIN 11:00 HKG 14:55 0 3:55 777 E
CX734 SIN 16:05 HKG 20:00 0 3:55 330 E
CX716 SIN 18:25 HKG 22:10 0 3:45 773 E
CX712 SIN 13:30 HKG 19:55 1 6:25 777 E
CX712 SIN 13:30 BKK 14:55 0 9:05 777 E
CX702 BKK 18:40 HKG 22:35 0 773 E
Hong Kong to Singapore

Hong Kong to Singapore
Flight Departure Arrival Stops Duration Aircraft Remarks Select your flight
Economy
CX717 HKG 08:55 SIN 12:30 0 3:35 773 E
CX739 HKG 11:20 SIN 15:05 0 3:45 744 E
CX711 HKG 16:15 SIN 20:00 0 3:45 773 E
CX715 HKG 20:00 SIN 23:45 0 3:45 330 E N/A
CX713 HKG 08:55 SIN 15:10 1 6:15 773 E

Sealalula is right. Maybe you did HKG-SIN on 23May & SIN-HKG on 22JUN.