Scotts Cheap Flights. Have been getting amazing deals the past few years that allow us to go to some super cool places. I think it is like a $5 fee a month to join, but it literally saves our family thousands each time. Round trip to London, Iceland, Rome, and Paris for each less than $340/person. I have seen some Puerto Rico deals on there too but can't remember how much. I think less than $400 the other day.