Contact all the agencies that have banner ads in sajha. Compare their prices and then go to websites like kayak and other and see the price difference. Thats about all you need to do. Cheaper tickets will have more layover hours compared to more expensive ones. If you can get cheaper Cathay Pacific tics, get em. Great seats and good food. Also you only have one layover in HKG. Have all the momos you can and go places you want.Best of luck.