HotelTonight Escape - The best getaway deals for tonight (or the weekend)
Skyscanner - Skyscanner.com compares over 1000 airlines to find you the cheapest airfares, fast.
MakCorps - Hotel Price Comparison API
JetRadar - Compare flights from hundreds of airlines & travel agencies
Hopper - Hopper is the #1 most downloaded travel app in North America! We aspire to be the world’s best — and most fun — place to book travel.
Kiwi.com - Find and book the best low-cost flights all around the world