Startup Idea : Trip search

There are so many option on the market, that people get confused about what is the best deal for them. So, in this app, the user would need to enter with the amount that he/she want to spend in your trip and where they want to go. The app will bring up all the flight tickets that are available that fits to the amount entered by the user. Ex: I am from Brazil and would like to visit Florida, USA, but user only can spend $ 500 on a flight ticket. The user would need to schedule the time of period that they are want to travel, maybe from March thru June, and the app would show, daily, a report with all the flight tickets available that fit to the amount of $ 500, it could be up to $ 550.