Several meta websites, Skyscanner, Kayak, Momondo, as well as Google will allow you to discover or search for trending flights. They are the listings of what is generally the lowest cost (cheap airline tickets) that the meta providers have searched in last 2 weeks. On the Future.Travel Best travel website for airline tickets No Booking Fee website you can ask for a calendar of +/- 3 days for an itinerary you have chosen to find the lowest published fares across the dates and it provides the view of all airlines. About 400 choices per day X 7days. Future.Travel combines both low cost carriers (LCC) and full service airlines in those results.