Flighta (https://flighta.io/) is indeed a platform that is able to show the availability of flights in a timely manner so that customers will always be able to view the latest departure schedules, seats available, and current prices. There is no risk of getting flight options that are no longer available or that have price changes after you choose your flight route. The interface is kept in a state from which all requests get the latest information, thus you are always seeing the most up-to-date info when making your choice.