Good afternoon everyone. I was working on my Buy Miles & Points Page and found a few offers ending soon. Always check the math to make sure that buying miles & points makes sense for you. Do not buy miles & points speculatively unless you have a use in mind. With that said, here are 5 offers that end this week. Up first, United Airlines is offering up to an 85% bonus, depending on the number of United Airlines MileagePlus Miles you purchase. This offer expires tomorrow – August 27.