Development of the flight-booking feature is early, and the company is considering various routes to break into the business, said people familiar with the plans. Airbnb may acquire an online travel agency or license data from a provider, such as Amadeus IT Group SA or Sabre Corp., said the people, who asked not to be identified discussing unfinished products. Within the company, the project is simply known as Flights, the people said. Airbnb aims to get Flights off the ground before it pursues an initial public offering, which is likely in the next 18 months, the people said. Nick Papas, a spokesman for Airbnb, declined to comment on the flight-booking plans and said the company doesn't plan to go public in the near future. Since it started eight years ago, Airbnb helped create a global industry out of staying in strangers' home. But the company is hoping to find new sources of revenue as it matures. Last month, it added tours, restaurant reservations and other travel services with an initiative called Airbnb Trips. The startup, which was valued at $30 billion by investors this year, has said it wants to be a destination for planning a person's entire vacation, not just a place to stay. Get the full story at Bloomberg Read also "How Airbnb reckons it can change the traveler experience" at Tnooz