Three months ago I wrote that US Airways would be losing five of its Star Alliance partners over the course of 2014. The final two of those five bite the dust this Thursday!

July 31, 2014 is the last day to use US Airways miles to book Turkish Airlines and Singapore Airlines flights.

Turkish has seven routes from the United States to Istanbul

Note that the flights need only be booked by July 31. You can book US Airways awards up to about 335 days in advance.