Book low-fare bus tickets with more options With the free, refreshed, and enhanced Greyhound app, you have more bus trip options, same low fares, and more new features than ever before. • Bus Trip Schedules – More options! Now you can see and book both Greyhound and FlixBus carrier schedules. More schedules mean more low fares on bus trips. • Seat Assignments – Choose the seat on the bus that you like the best. Want a window – sounds great. More of an aisle person – the choice is yours.