請問捷星航空購票問題

能動手儘量別吵吵
請問一下
直接上捷星航空網站購票比較划算
還是上QANTAS網站上訂比較划算呢?
一樣的機票行段
比方說我上捷星的網站
Adult $312.96
Passenger Service Charge (International) $9.98
Passenger Movement $47.00
Safety and Security $5.40
AU Int Passenger SC $20.91
Airfare per paying Adult $396.25
1 x Adult Subtotal $396.25
而我上WANTAS的網站
AUD 386但是有以下的注意事項
* Includes surcharges, fees and taxes except local airport taxes collected at time of check-in. For credit card payments a fee of A$7.70 per passenger applies. Payments made using BPAY do not attract this fee, however check with your financial institution for other applicable fees or charges.

說真的我不懂差別在哪裡
有沒有高手可以幫我解惑?
感激不盡^^