HotelTonight is a travel agency and metasearch engine owned by Airbnb and accessible via website and mobile app. It is used to book last-minute lodging in the Americas, Europe, Japan and Australia.^{[1][2][3][4][5][6][7]}

HotelTonight was founded in December 2010 by Sam Shank, Jared Simon, and Chris Bailey.^[8] When it first launched in January 2011, the mobile app was only available in the US and on Apple products.^[9] The app launched on Android devices in July 2011 and now includes cities in Europe, Canada, Central America and South America.^[10][11][12]

In May 2011, the company raised a $3.25 million Series A round from Battery Ventures, Accel Partners, and First Round Capital.^[13] In November 2011, they raised $9 million from Accel Partners, Battery Ventures, and First Round Capital.^[14] In June 2012, a Series C round from U.S. Venture Partners, Accel Partners, Battery Ventures, and First Round Capital raised another $23 million.^[15] In September 2013, the company raised $45 million in a Series D round led by Coatue Management, bringing its total funding to $80.5 million.^[16]

In October 2014, HotelTonight expanded from same-day only bookings to allowing users to book rooms up to 7 days in advance.^[17] In September 2018, they began allowing bookings through the website.^[18]

In March 2019, HotelTonight was acquired by Airbnb for approximately $450 million in cash and stock.^[19][20][21]