Expedia: Hotels, Flights & Car
Expedia
CheapOair: Cheap Flight Deals
Fareportal Inc.
Priceline: Hotel, Flight & Car
priceline.com
Hopper - 机票、酒店和租车
Hopper Inc.
momondo:搜索机票、酒店、租车
KAYAK.com
去哪儿旅行-机票.酒店.火车票.汽车票.旅游.门票
Qunar.com
Trip.com:机票、酒店、火车票、接送、当地玩乐
Trip.com
携程旅行
携程旅行网