Google Flight | 部分航班增加最佳价格保障

如果有差价，申诉后，谷歌会将差价退到你的Google pay账户。
Google Adds Best Price Guarantee To Some Flights, Refund If Flight Decreases In Price
https://blog.google/products/travel/flight-deals-hotel-browsing-google-search-features/
希望谷歌能扛住羊毛党。