FlixBus (German pronunciation: ['flɪksbʊs]; styled FLiXBUS) is a German brand that offers low-cost intercity coach services in Europe, North America, South America and Asia. It is owned by Flix SE [de], which also operates FlixTrain, FlixCar, Kâmil Koç [tr], and Greyhound Lines. FlixBus operates buses or, in many cases, just handles marketing, pricing, and customer service for a commission, on behalf of bus operators. In 2023, FlixBus had revenues of €2 billion and carried 81 million passengers of which 55 million were in Europe, 14 million were in Turkey, and 12 million were in North America.

FlixBus was founded in 2011 in Munich by Daniel Krauss, Jochen Engert and André Schwämmlein. They had met in university and began discussing the concept in 2009 after plans were made to deregulate the bus industry in Germany.

FlixBus launched its first three routes in February 2013 in Bavaria, Germany, to take advantage of Germany opening up its bus market to competition. In the following years, it added routes across Europe.

In April 2018, FlixBus was the first to use all-electric vehicles on a long-distance bus route, between Paris La Défense and Amiens.

FlixBus expanded to the United States in 2018, first operating from Los Angeles, then expanding to the East Coast in 2019 through a partnership with Eastern Bus. FlixBus also launched service in Brazil in 2021, Canada in 2022, Chile in 2023, India in 2024, and Mexico in 2025.

In April 2022, the company converted from a GmbH structure to an SE structure and was renamed Flix SE.

In 2013, the company received equity financing from Mercedes-Benz Group and the Technical University of Munich.

In July 2019, the company raised €500 million in a Series F financing round led by TCV and Permira, valuing the company at over €2 billion.