Most modern audio converters should support flac to wma conversion just fine. Just keep in mind that since WMA format features as a lossy compression method, there will be drop in audio quality compared to FLAC format. The resulting .wma files on the other hand, will be much smaller in size.
Open FLAC file Open WMA fileAudio converter for Windows and Mac
A free audio converter
A professional digital audio editor
A music library management program - renamed to Helium (version 12) and replaced in 2016
An audio player and converter
One of the many FLAC audio converters
A multimedia player with conversion capabilities
Universal All Purpose Free Media, Audio & Video Converter Player Recorder
A dedicated audio converter
Video converting software