Priceline

US-focused Priceline sells airline tickets alongside hotels, rental cars and bundles, and is part of Booking Holdings. Flight search covers major US and international carriers, with filters for stops, times and airlines. Members of Priceline VIP Rewards can unlock tiered perks, and the site promotes savings when flights are bundled with a hotel or car. Priceline's standard flight fares are conventional: the airline and schedule are shown before purchase, unlike the opaque deals it is known for on the hotel side. It suits North American travellers who already use Priceline for hotels and want everything on one itinerary. Points to check include basic economy restrictions, baggage fees that are not always obvious at first glance, and whether changes must be made through Priceline or the airline. Service outside the US is more limited than with globally focused agencies.